Alloy Saw What Precautions

One must carefully read the items mentioned in the manual cutting machines and packaging shell on the front. 2, according to the material being cut blade varieties to select and check the blade for cracks, distortion, lost teeth, do not use if damaged blade. 3, be sure GUSHI turbo diamond blade  to install the cutter blade guard when using the shell, and wear masks or protective eye. 4, please check before installing blade cutter spindle is beating, when you install the blade with flange and nut set tight, people must be the center hole of the blade and is firmly fixed on the flange, according to Taiwan after installation, gasket sets must be purchased after a good hand gently push the blade when the washer confirm whether the eccentric rotation shaking. 5 job to be cut before use after installation Alloy saw pre-turn for a minute, until the machine into operation. 6, when the non-automatic cutting operation, you must gently cut into the normal operation of the blade material is prohibited Forced straining hard to push. And prohibit reverse ban suddenly stopped in the middle of the blade material is cut, otherwise lead to jagged off, saw  GUSHI concrete polishing pads body deformation, prone to danger. 7, using hear abnormal sounds, see abnormal shaking or section does not usually stop the job and find the cause of the exception, the timely replacement blade. 8, please wipe the rust after cutting oil, to prevent the blade is not used for a long time and rust. 9, insert the blade perpendicular to the tool holder to hang in a dry, avoid damp areas. Do not place the blade flat on the ground, otherwise easily lead to blade deformation. Do not directly stacked multi-chip saw blade should be spaced packaging to avoid jagged collision should gently. 10, again when the blade is not sharp serrated grinding, grinding is not easy to destroy serrated timely original angle, the impact of cutting accuracy and shorten blade life.
First, how to choose the right blade?
1, the basic data: ① machine spindle speed, ② workpiece thickness and material, ③ saw blade diameter size and pore size (shaft);
2, selected on the basis: the number of revolutions of the spindle and intends to match the outer diameter of the blade computing, cutting speed: V = π × outer diameter D × revolutions N/60 (m / s) is generally reasonable cutting speed 60-90 m / second,
Specific recommendations:
Material cutting
Softwood 60-90 (m / s)
Hardwood 50-70 (m / s)
Particleboard, plywood 60-80 (m / s)
Cutting speed is too large, machine vibration, voice large blade stability is reduced, degradation processing, cutting speed is too small, reducing production efficiency. The same feed rate per  tooth cutting increased, affecting the processing quality and life of the saw blade. Because the blade diameter D and spindle speed N is a power function, in practical applications, a reasonable increase speed and reduce the diameter GUSHI diamond polishing tools  of the blade is most economical.
3, quality bid:
As the saying goes: "not good goods cheaper, better goods are not cheap," probably true for other commodities, but it is probably not the right tool tools Sure; crucial match. Job site on many factors: such as sawing device object, quality requirements, quality of personnel. Comprehensive assessment, rationally choose the best use, just right in order to save money, reduce costs, participation in the competition. It depends on the expertise of similar products and understand the information.

Detection of diamond grinding wheel performance

Diamond grinding wheel used more widely, it is how prospects like it, let Xiaobian together to explore with you the next issue it. Diamond wheel is grinding carbide, glass, ceramics, gems high brittle material effects tools. In recent years, with the rapid development of high-speed grinding ultra-precision grinding technology, put a higher demand on the wheel, ceramic resin bonded grinding wheel can not meet production sds hammer drill bits  needs, metal bonded grinding wheel because the combination of high strength, good formability, Notable features long life and production has been widely used. Metal-bonded diamond grinding wheel manufacturer in different ways according to the main sintering, plating two types. In order to give full play to the role of super abrasive abroad since the early 1990s, beginning with high temperature brazing process to develop a new wheel, namely single-temperature brazing superabrasive grinding wheels, grinding wheels currently still in the research and development of this stage.
Detection method using DHM-3 test machine, you can use the following two methods to achieve the detection performance of the diamond grinding wheel:
By detecting the consumption of the test piece and the grinding wheel, the wear of both the calculated ratio reflects the diamond polishing tools  performance of the grinding wheel. The steps are:
 ① were weighed and the weight of the wheel test block Gl, G2, and then the wheel and test block mounted on the DHM-3.
  ② Set consumption test block, before grinding to L1, after grinding to L2.
 ③ wheel set line speed test block wobble.
 After the touch screen said data set to open the equipment operation; ground when the test piece is set to a minimum when L2, DHM-3 automatically stops running and the running time of the record process. At this point, remove the wheel and test block, and then were called whichever weight G1 ', c2', wear ratio calculation.
Through attrition ratio reflects the grinding wheel performance. Wear ratio is smaller, more wearable wheel. Running time core bits for concrete  mainly reflects the sharpness wheel, when asked to run shorter, indicating wheel more sharp.
When asked by detecting running performance reflects the diamond wheel grinding wheel. Through experimental study, we found that the more appropriate square enamel Taiwan prosecutors guillotine ceramic diamond grinding wheel and grinding wheel performance ceramic CRN, because these two resin diamond grinding wheel to abrasion than much consumption can therefore be ignored wheel ship

vitrified diamond and CBN grinding wheel slotting process

1 Overview
  Evolving cutting tool materials, from high-speed steel, tungsten, ceramic metal oxide ceramic micro-particles until tungsten. At the same time, the geometry of the tools of new materials, structures, and even change the shape aspect is also changing, led the development of grinding technology, the ceramic tile saw  emergence of new tools for grinding and finishing techniques, as well as a new way of binding agents. This grinding equipment accordingly requests, high power, high material removal rate become a trend, and on this basis is in the processing of higher requirements can also achieve the same machine trimmed.
 On the economic assessment of the grinding process will involve the machine costs, labor costs, management fees and tool costs. Among them, labor hours and machine costs account for as much as 80 percent, which determines the need to improve the economy, the need from the  diamond hole saw following two aspects: 1) high material removal rate, that improve grinding efficiency; 2) to reduce non-grinding time . Enhance the material removal rate by increasing the feed rate and feed rate to achieve every time, and in order to reduce the non-grinding time, consider reducing the frequency of wheel replacement time, as well as aid in the machine grinder trimmed to achieve their goals.
  Recently, has emerged to replace the usual use of resin bond diamond and CBN grinding wheels ideal alternative - vitrified diamond and CBN grinding wheels, grinding its superiority in terms of these two aspects is built in to improve the economy of the above, especially in terms of processing slotted, more fully reflects its advantages.
2 Vitrified diamond or CBN grinding wheel grooving state
  It is undeniable that, because of its strong grinding force and high material removal rate, softer resin bond diamond or CBN grinding wheel in the current machining carbide or high speed steel cutting tools are still to be widely used. However, an increasing awareness of the tool manufacturer, resin bonded grinding wheel there is a lower than poor shape retention and drawbacks, which makes the high cost of machining groove, especially the use of shape processing 14F1 When circular groove, this phenomenon is more serious.
 The vitrified diamond or CBN grinding wheel is able to overcome this shortcoming, it is not only easy to repair, maintain good, but also help to control the chip and the heat of formation of pores, with a strong grinding force.
Usually installed in each wheel, radial and  General purpose blade axial runout will appear, as well as dynamic imbalance and other issues in the use of ceramic binder will encounter, so do not be handling and interior trim will contribute directly to the machine significantly Improved accuracy of the wheel.
3 Vitrified diamond or CBN grinding wheel grooving to use examples
 Grinding parameters:
 Margin ae = 3,5 mm; feed speed vf highest 150mm/min; cutting speed vc = 12-44m / s.
 Trimming parameters:
Wheel feed rate vcd = 18m / s; wheel and wheel speed ratio when dressing qd = 0.7; Feed aed = 3μm.
4 trim system
 Single piece of diamond or CBN grinding wheel vitrified high cost, which is only valid ground floor just a few millimeters, is calculated to be trimmed if added, soon ran out, the amount actually used in the grinding of a workpiece Only 5-10% of the grinding wheel layer, the rest is actually out of the repair. Therefore, the correct way of dressing is very important.

Grinding wheel used to improve the performance of the basic parameters can not be discounted

Carry on the work of the grinding process , to choose the right material , depending on the hardness of the grinding wheel grain size of the workpiece, in addition to these commonly used during the grinding wheel a few basic parameters , but also pay attention to , so masonry saw blades   as to maximize the improvement of grinding efficiency.
Arc a diamond wheel in contact with the workpiece ( unit : mm).
2 . Wear ratio .
3 grinding energy . Is the energy per unit volume ( or weight ) of the metal consumed removed. Its value is smaller, the better the material can be grinding , metal removal rate is relatively higher .
4 diamond wheel line speed . ( Unit : M / S)
According to grinding machine spindle speed diamond wheel speed can be drawn , then the basis of its diameter , it can draw its line speed. Wheel manufacturers are generally of a standard line  granite core bits speed , i.e. the linear velocity , diameter, rotational speed are related.
5 in the axial cylindrical grinding feed rate ( Unit : mm / r)
According to the width of the wheel , using the appropriate amount of axial feed , in the process , you can ensure efficient grinding efficiency at the same time , to get better results. If coarse steel , feed rate of 30% to 70% of the width of the coarse castings , feed rate of 70 % to 80 % of the width , while grinding , feed rate , compared with 10% of the width to 30 %.
6 inner axial cylindrical grinding feed diamond grinding wheel  rate (unit : m / min). Axial and axial feed rate is the feed rate and workpiece speed related .
7 workpiece speed ( unit : m / min). This is the diameter of the rotational speed of the workpiece and the workpiece related .
Only in a variety of relevant factors are considered comprehensive , and will make the grinding wheel to achieve the best results....

Use some method of diamond tools

Diamond cutting tool is mainly processing of non-metallic materials of high hardness , scope more widely, then we use diamond tool tips when you do what ? 1 , different specifications and uses of the blade , the blade angle and the design matrix forms are different, as far as possible according to their corresponding occasions ; 2, the device spindle and plywood size and shape and position accuracy with the results there are influence , installation and adjustment to be checked before the blade . Especially iamond tools manufacturer  for plywood blade contact surface with the impact caused by the clamping force to slip displacement factors must be excluded ;
3 , pay attention to the work of the blade , an exception occurs, such as vibration, my voice , machined surface material moving situation, you must promptly stop adjustment , and timely grinding, maintaining peak interest ;
4 , grinding blade must not change its original angle , to avoid sudden thermal quench local head , the best professional grinding
  Diamond tools with high hardness and wear resistance , low friction coefficient, high elastic metal drill bits  modulus , high thermal conductivity , low thermal expansion coefficient, and low affinity and non-ferrous metals and so on. Can be used for non-metal brittle materials such as graphite , high wear-resistant materials , composite materials, high toughness silicon aluminum alloy and other non-ferrous materials, precision machining . Many types of diamond tools , the performance difference was significant , the structure of different types of diamond tools , method of preparation and application areas is quite different .
Within a certain range , when the diamond concentration changes from low to high , the blade sharpness and cutting efficiency carbide tipped saw blade  decreased, while life is gradually extended ; but the concentration is too high , the blade becomes blunt . The use of low concentration , coarse , efficiency will be increased . The use of various parts of the cutting head when the different roles of different concentrations ( i.e. three or more layer structure in the intermediate layer can be used in low concentrations ) , the saw blade during the work head to form an intermediate groove , with helps prevent blade deflection , thereby improving the quality of stone processing .

How to replace the worn drill

Bits in underground work after a certain time, scraper blade drill a smaller diameter, shorter, blunt, rock crushing capacity will become weak, progress slowed down. Tags: Geological coring drill bit concave three wings
Bits in underground work after a certain time, scraper blade drill a smaller diameter, shorter, blunt, rock diamond bandsaw blades  crushing capacity will become weak, slowed down progress; cone drill because tooth wear erosion, bearing damage, can cause cone rotation is not flexible or cone stuck, the torque increases, if not promptly fall from the cone accidents will happen; diamond drill due to the heterogeneity caused by the formation of the PDC drill occurred crack, break, out , also makes drilling footage slower. To speed up the whole well drilling speed, must be replaced with the old drill and drill bit is a few hundred meters to several kilometers underground, how to replace the drill rig workers do?
Drilling rig power driven turntable, kelly, drill and drill bit rotates through observation instrument ground rig drill underground work, as consolidated judgment, if that bit has been worn, replace the drill bit should immediately stop drilling . After stopping drilling to  tile cutting blades continue to maintain the drilling fluid circulation for some time, the purpose is to adjust the performance of the drilling fluid and the cuttings suspended in the fluid out of the ground, the loop so that the new wellbore wall remained stable, while also To carry out routine inspections of drilling equipment. Workers use derrick drilling crown block, traveling block and hook, according to the height of the derrick by column (generally composed of two or three drill) from drilling wells up out of all. After the drill column from the discharge order in the derrick, the proposed downhole drill string while continuing to use the drilling pump perfusion fluid annular space, the  concrete cutting blade purpose is to keep the wellbore fluid level does not drop, the wellbore pressure to balance the formation pressure to prevent borehole collapse or underground formation fluid into the wellbore. Meanwhile, we should pay particular attention to the reduced diameter borehole sticking may occur, the operator must be strictly controlled to enhance speed. All within the wellbore drill pipe, drill collars, after starting out, the need to replace the drill will also act out the workers after removing the old drill press fitted with the new drill down to the original column order can be restored after drilling wells .

quality control has guiding significance

Sheet wheel performance depends largely on the merits of using abrasive quality, good quality abrasives, grinding wheels, high grade, and in the more expensive price. As the domestic high-grade bauxite resource depletion, a variety of raw materials and coal prices in mid-rise, coupled with energy saving the environment forced shut down, corundum prices are cutting discs  rising fast, from time to time will be in short supply. How rational use abrasives, improve market competitiveness, is the most important enterprises grinding technology considerations.Best approach is to not participate in the core sheet wheel portion of the cutting action of poor quality with low prices instead of secondary abrasive, abrasive cutting quality full performance, lower manufacturing costs. This approach resin bolts and large diameter cylindrical grinding wheel resin grinding wheel has been widely used. For thin grinding wheel, since the intermediate screening, the bottom and the top to separate the feed, if the external and the core are bandsaw blades  stepwise feeding, in the process to implement quite difficult, is still only vision in the future, if successful, cost reduction, profit improvement , on sheet wheel manufacturing is undoubtedly a far-reaching "technological revolution."Compare prices now wear suitable strategy for various consumer groups, in accordance with abrasive made of different grades of abrasive products, the best abrasive used in most need sheet wheel, avoiding production of low-grade abrasive grinding wheels with high-grade, as far as possible best use, cost-effective in improving the premise, a great effort for each grade of the product have done "extreme."High-grade sheet wheel stable, targeted, reproducible tamping rammer  production has generally adopted a sand, special products and even to use zirconium corundum, calcined alumina abrasive and post-processing. The market is dominated by imported products, most cost-effective production of high sheet is not high, not discrimination, targeted not strong, still need further research and development efforts.

wheel speed hazards arising from the work

Not only cause wheel breakage near in death or serious injury, but can also cause serious damage to the plant or housing. Although the manufacturer has taken various preventive measures, but if used carelessly careful wheel still occur occasionally break or crack accidents. Applications to take the following precautions concerning:1. Handling and  diamond bandsaw blades storageIn shipping and handling process, if moisture enters phenolic resin bonded grinding wheel, it will reduce its strength; ceramic bonded grinding wheels and, then very sensitive to temperature changes repeatedly; uneven absorption of moisture causes the wheel out of balance . Therefore, in the loading and unloading wheel must be handled with care, and to be placed in a dry and sheltered place, in order to maintain the grinding wheel normal state.2 crack detectionDeal with the new wheel checked to ensure drying and grinding wheels from 9 inch saw blade  damage. The easiest way is to tap the wheel with a mallet. Intact ceramic grinding wheel will be issued by the crisp sound. Wheel with an organic adhesive bond will be issued muffled sound, but with a defective wheel crushing sound is emitted distinction. For suspected wheel, they should check that the delivery person.3 TestOfficial use of the new wheel should be performed before full trials and should be carefully observed. In the Diamond tool  wet, the wheel should be idling for some time, get rid of the water. Otherwise, the water will accumulate in the lower part of the wheel, causing the wheel imbalance, resulting in next time may burst.

Diamond saw blade consists of two parts; the base body and head

 Diamond saw blade is a cutting tool, widely used in stone, ceramics and other brittle materials processing. Diamond saw blade consists of two parts; the base body and head. Head substrate is bonded to the main support part and head is in the course of the part from the cutting, head are  carbide grinding wheels constantly in use and consumed, and the base body is not, the cutting head is able to play the role because it contains diamond, diamond hard as the most material, which cut the tip friction object to be processed while the diamond particles from the metal inclusions inside the tip. In use, the metal matrix with the consumption of diamond, the ideal situation is generally a metal carcass consumed faster than the diamond, so that the sharpness of the blade can ensure head while ensuring a longer life span, the middle part the matrix is ​​generally Mn steel. outer part is the head.
Classification of diamond saw blades
More and more industries in the production  turbo blades process using a diamond saw, with industry consolidation segments, diamond saw blade types are becoming increasingly refined.
I. manufacturing technology Category:
A sintered diamond saw blade: sub cold sintering and hot pressing two kinds, pressed sintering.
2, the welding diamond blade: high-frequency welding and laser welding of two types, high-frequency welding by melting the tip and substrate media are welded together, the laser welding head by high temperature laser beam melts the edge contact with the substrate forming a metallurgical bond .
3, Diamond Saw Blade: the head is attached to the powder by a plating method on the substrate.
Two appearance Category:
A continuous edge blade: Continuous serrated diamond saw blade, usually produced by sintering method, commonly used as a basis for  wet saw blades bronze binder matrix material, cutting water to be added to ensure the cutting effect, and will be useful for laser cutting head gap species.
2, blade-type blade: serrated disconnected, cutting speed, suitable for dry and wet cutting method.
3, turbo saw blade: 1,2 combined with the previous two advantages, sawtooth-shaped uniform continuous presence turbo punch, improved cutting speed and increase service life.

Circular blade how to install

Usually get the machine, many people do not know how to deal with, to share some of the following circular blade shearing machine disassembly and installation processes and the steps that  core drill bits we should pay attention to some of the problems!
The circular blade shears and  how to mix it together? First, we must first remove the front bench clipboard, front support arms, and lower front cover plate. Then we must be very careful, very sharp circular blade shears, when the whole process of operation are used to bring gloves, first turn off the pump motor, loosen the screw when the first machine in the middle of the clipboard loose screws at both ends The left one cup grinding wheels  screw from the fixed effect, and then screw the rear of the clipboard on the blade, this time you can grab the clipboard blades by hand, leaving both ends of the screws removed, remove the rear , slowly remove the circular blade, then you can start the pump, so that the slider in the upper dead point, with wooden table and on the mat in between the blades, turn off the  concrete ring saw pump motor, loosen and remove all installed on the blade screws and gently remove the circular blade.
The second step, shearing blades on the installation, first with the blade, with the specifications for the M12 * 40 screws on the blade, not on the ends of the first blade. Then be sure to use the stick against the upper blade, the blade and the contact surface of the slider can be fully tightened after snapping has been installed on the M12 * 40 bolts, when the slider down to the bottom dead point, to turn off pump motor, and then loaded on the blade screws tightened, the blade screw tightening torque should be 35N / M.
Finally, under the circular blade shears installation process, oil pump, when the slider up to the upper dead point, turn off the pump, replace the next round blade, using M12 * 45 hex screws, then pressed with a wooden stick under the blade, so that the next stage of the work under the blade and the blade snapping joints fully tighten screw. In this way, the circular blade clipboard installation process is complete.

Diamond grinding wheel wear and tear

Some devices are also equipped with spindle speed , wheel auto repair, tool nose radius microscope and automatic processing devices. Grinding wheel surface is essentially randomly distributed on a large number of abrasive grains in the process of cutting . Because diamond, cubic boron nitride and other superhard materials with high hardness and  abrasive grinding wheels wear resistance , and its grinding mechanism and general grinding of metallic materials have varied considerably . System superhard materials during grinding diamond wheel loss mechanism for rational selection and use of diamond grinding wheel has guiding significance .
Diamond wheel loss microanalysis :
The various conditions of use after grinding diamond wheel was observed under a microscope , the loss can be analyzed in detail , the results are as follows:
In the grinding force and grinding speed is low under the conditions of diamond grinding wheel , the surface of the angular distribution of a large , consistent reflective facets of diamond abrasive wear . This diamond blade saws  is because the diamond grains and superhard materials produced by mechanical friction and mechanical wear. This wear is gradual, with its grinding abrasive wear amount proportional to the stroke length .
In the grinding zone temperature higher grinding conditions on the diamond grit diamond wheel and graphite oxidation and loss. According to the properties of diamond , oxidation, depending on the degree of graphitization of the diamond abrasive crystals integrity and the degree of graphitization is also related with the crystal orientation . Good diamond abrasive crystal perfection , oxidation , low degree of graphitization loss .
Diamond grinding wheel diamond grit on the  concrete saw blades surface portion of the occurrence of local fracture and fragmentation , resulting in whole shedding. Cleavage occurs diamond abrasive damage . As the crystal is determined by the crystal structure of the cleavage of chemical bonds factor 7 type, intensity and distribution of the resulting fracture plane , it is often the bond strength along the azimuth plane the final generation . Randomness of the distribution of grain , determine the occurrence of cleavage destruction is inevitable.

Below are several commonly used tool

 for example, discusses the design of single-crystal diamond tool.
Turning your computer's hard substrate
Computer hard disk substrate is used for information storage, the material is aluminum or aluminum alloy, the surface roughness of the substrate, the lower storage density, thus reducing the surface roughness of the processing is critical. The same time as the substrate thickness is less than 0.9mm, in order to prevent deformation, should minimize the cutting forces and extrusion processing.
Cutting hard substrate with masonry blades   good rigidity and stability using ultra-precision lathe disk. Cutting depth of about 0.01 ~ 0.02mm, the feed is about 0.5mm.
Rigid disk substrate of single crystal diamond tools shown in Figure 1 the shape of the tip. Head has two main cutting edges, the processing can influence the infeed. Longer wiper ensures two directions machining wiper flank wear will not interfere with each other. Two master in the feed direction of the rake face downtilt 5 °, to obtain about 2.5 ° negative rake angle, the chips flow surface to be processed, in order to avoid scratching the chip surface has been processed. Very sharp diamond tools, edge radius is smaller than 100nm, 5 ° after the angle of the flank face has been sufficiently reduced to the machined surface of the extrusion and friction.
The key quality requirements of the tool blade and the tip is observed under the microscope at 500 times the defect. The design principle is equally applicable to other ultra-precision mirror surface processing tool.
Jewellery approved spent knife
Jewellery approved spent knife used in gold, silver jewelry milled leaf-shaped patterns, is actually a molding cutter, its granite polishing pad  head shape shown in Figure 2. Sharp knife at between 110 ° ~ 150 °, to accommodate different size and depth of the pattern processing. As approved spending machine structure is simple, poor rigidity, vibration, combined use of intermittent dry cutting, processing conditions are very poor, so the batch spent knife blade needs to have a strong impact resistance. 5 ° negative rake angle and 1 ° ~ 1.5 ° angle can effectively increase the rear edge strength, while the smaller rear corner between the tool and the workpiece can make proper squeeze by, the cutting will not "guilty" to prevent cutting vibration In the machined surface "chatter."
Batch processing jewelry case and took the knife and some high-light decorative parts with a tool roughly the same design principles, such tools requires 200 to 500 times the blade under the microscope without chipping.
Contacts Tool
Very soft contact lens material, and  Diamond tool a certain tensile strength, generally circular material cutter blade of the knife is too large, difficult to make cutting. Since there after turning a polishing step, thus turning the surface roughness of only required to achieve Ra0.1μm, turning the main purpose of having a convex curved surface shape precision, the main requirements of the tool sharp blade sex. The head shape of the lens turning tool shown in Figure 3. To meet the needs of the cutting surface of the concave circular arc, using a 15 ° relief angle, requires the blade under a microscope at 100 times without chipping.
3 single crystal diamond tool use and maintenance
Single-crystal diamond tool brittleness, combined very sharp shocks prone to chipping, so far as possible in a smooth, vibration-free working conditions of use; while also maximizing the workpiece and tool chucking rigidity and the entire rigidity of the system to increase its anti-vibration capability. Cutting the amount of not more than 0.1mm appropriate.

diamond thick welding tool

Welding tools diamond thick film production process generally include: a large area diamond films prepared; the diamond film is cut into desired shape and size of the tool; diamond thick film and the masonry drill bits  base material of the welding tool; diamond thick cutting edge grinding and polishing . (1) Preparation and cutting diamond filmsCommonly used process for preparing diamond films is a DC plasma jet CVD method. The diamond deposition to the WC-Co alloy (mirror surface processing), the cooling process of the substrate, the diamond film off automatically. This method is fast deposition rate (up to 930μm / h), relatively close integration between the lattice, but the growth surface rough. Diamond film hardness, wear resistance, non-conductive determines its cutting method is laser cutting (cutting in air, oxygen and argon environment). Use of laser cutting diamond films can not only cut to the desired shape and size, the tool can also be cut out after a corner, with a  diamond bandsaw blades narrow kerf, efficient and so on.(1) diamond tools, welding thickDiamond and metals and their alloys in general the interfacial energy between the high, resulting in the diamond can not be a general low-melting alloy infiltration, poor solderability. At present, copper-silver alloy solder by adding strong carbide forming elements, or through the diamond surface treatment of metal to increase between the diamond and the metal weldability.① active brazing methodSolder is generally used copper and silver alloy containing Ti, without flux in an inert gas or in vacuum soldering. Commonly used solder composition Ag = 68.8wt%, Cu = 26.7wt%, Ti = 4.5wt%, commonly prepared by arc melting method and the powder metallurgy method. Ti as an active element in the welding process and the C-reactive generate TiC, the diamond can improve the wettability with solder and adhesive strength. The heating temperature is generally 850 ℃, heat for 10 minutes, slow cooling to reduce internal stress.② After the concrete cutting blade  welding surface metallizationThe diamond surface of the metal surface treatment is performed by metal plating the surface of the diamond, to the surface of a metal or metalloid performance. Generally in the diamond coated Ti, Ti reacts with C TiC, TiC and Ag-Cu solder alloy has a good wettability and bonding strength. Titanium currently used methods are: a vacuum physical vapor deposition (PVD, including vacuum evaporation plating, vacuum sputtering, vacuum ion plating, etc.), chemical vapor plating and powder sintering coverage. Single plating PVD method is low, diamond plating process temperature below 500 ℃, the diamond coating and the physical attachment between, no chemical metallurgy. CVD method, a chemical reaction between Ti and diamonds form a strong metallurgical bond, the reaction temperature is high, damage to the diamond.

diamond saw idling and idling with water

Diamond saw blade up after the initial installation idling tests are required to carry out, and even some tile cutting blades  without any professional training workshop of master craftsman, as long as the operation of the cutting blade a long time, it would have fixed the blade just after the diamond saws slices idling, the reason is that for diamond saw blades, the ability to try to cut long life of the most important factors in addition to this, the more important is the tip angle of cut material can be processed with a total weight of the blade base , there will be a large angle, of course, if it is complete coincidence of course, is the best, but ninety few, the  wet saw blades very few manufacturers capable of producing head angle with the base cut exactly the same situation, but even if someone can do out of this diamond saw is not enough, because even the perfect diamond saw blade will encounter no perfect person, I believe we have encountered even the best tools will be those who get careless mess of things , but a qualified diamond saw how to use it for a long time to high, which is important at the beginning, such as idling time by the sound judgment to verify diamond blades are mounted, by correcting the angle diamond blade idling correction term diamond saw blade angle and blade and the substrate is in the same perspective, which will be for all sorts of prolonged use of diamond saw benefits, and the other is temperature, diamond saw blade during the cutting of raw materials is often due to the friction between will have a high temperature, which is unavoidable, but extremely high temperatures will shorten the life of the blade, because that is 4 inch circular saw blade  in high temperature conditions, the surface of diamond saw blades will quickly be worn away, a layer of friction continues, down blade life will be shorter, so the high temperature conditions, many workers will be used in the case of sprinkling the surface to the blade is to cool, this point that we are able to understand, however, a variety of means, is to be able Diamond saw blade so that under normal conditions, long-time use and efficient.

The main scope of the blade

a variety of saw blade corresponding to the type of surface treatment material is cut, not scientific titanium blade, the blade base is important to be good enough, or deflection and the cutting accuracy is not necessarily be increased.
HSS saw blade: red brass (P treatment or treatment E), iron pipes (standard), iron bars (standard), stainless steel (E process), aluminum (standard) and so on. Tungsten carbide blade (TIPPED SAW tungsten steel): SS330, SS400, S10C, S12C, S15C, S17C, S20C, S22C, S25C, S28C, S30C, SGD, SCR415, SCM415, SNCM415, S33C, S35C, S38C, S40C, S43C , S45C, S48C, SCR420, SCM420, SNCM220, S50C, S53C, S55C, S58C, SCR430, SCR435, SCR440, SCM430, SCM435, SCM440, SUJ2, SKD11, SUS304
Cemented tungsten carbide blade (Carbide): For grooving or cut off. For special materials such as titanium,  wet saw blades plastic and so on. Or small material cut off. Because there are now many new materials appear, whether it is a new super-hard alloy, hard plastic, all kinds of capillaries, frozen goods, such as different cutting requirements or higher cutting accuracy requirements, you can contact us. Use circular saw blades frequent problems through our many years of experience, customers using the blade when the problems that may occur and the reasons: Important!! Problem: cut timber skew, of varying lengths, cutting uneven surface, a flash, saw piece deformation, broken teeth, broken blade, short life
Reasons: (many situations because it is not caused by attention to detail)
Material: Sometimes the problem is with the material to be cut, because there are too many materials purchased impurities, so when the blade hit these impurities particles, super-hard blade may break or give great sound, cut out of the surface will be uneven. But with softer HSS saw blade can not break, but the results will be skewed cutting phenomenon, because the blade when in contact with particles shift phenomenon.
Blade: Blade not properly gracefully compressive deformation, serrated blunt out no grinding, yaw rate deviation, number of teeth inappropriate choice of saw blade strength is not correct, choose the wrong blade, saw poor quality
Cutting machine: Jig Saw a state filled with incorrect number of revolutions does not correct cutting speed and blade with  concrete cutting blade cutting oil selection cutting machine error may be due to influence each other. There are customer complaints cutting results skewed to the site via our observations, feeding rack not fixed in the factory personnel transport material, often crooked off accidentally collide. Workpiece feeding rack crooked off after, of course, cut out of the material must be crooked. Customer complaints are also often broken saw blade can not be solved, we got to the scene found the book of mechanical design has been pointed out that the longer the cutting material, must have been cut by Taiwan to make the segments are not shaking. However, the customer still and chopped material as well, so the blade will have to be cut by shaking timber crashed. There is also the customer's machine is not in the installed horizontally correction, so the machine was fundamentally crooked.
Using fake machine: Because most of the cost of the machine in the mechanical materials, machine parts cheap that the use of cheap, of course, there is no guarantee of quality. Therefore, there may be insufficient because of mechanical stability undue impact or shaking.
Manual machine (operator): Since the diamond cutting tools  machine is manually operated manually, sometimes the operator under the knife under the knife too hard or too fast, it may cause blade breakage. Blade when used to note the following, otherwise there may have more problems: 1) determine the cut material must have a good fixed. 2) is cut according to the material to set the cutting conditions. 3) filled with saw, must be part of the jig clean out debris, and then pay attention to the direction of rotation, the blade properly fixed. 4) at the start and stop cutting cutting, do not feed too fast. (May cause broken teeth and damaged) 5) full use of cutting oil (I hope with the work material selection cutting oil) 6) Disposable circular saw blade circular saw blade cutting machines and cutting machines generally different, we must choose the correct blade . Can not be mixed, unless the purchase dual-use models.

blade cutting what knowledge needs to pay attention to

1, idle: in particular, the first use of a new base, the need to idle for about 30 minutes, the summer hot season needs to bring water idling, which aims to further eliminate welding head when matrix effects and enhanced blade rotating at high speed state to maintain the  masonry drill bits intrinsic quality of memory.
2, blocks of not less than 0.5m3, and placed securely, the bottom should be well-wood pad, plug SUCOOT prison, blocks should be located in symmetrical positions workbench, workbench cars and blocks to ensure the stability, without shaking , shaking phenomenon.
3, according to the blocks of length, width, height adjusting limit switch, the blade lift and skip the trip in a reliable and effective range. Saw blade should leave before sawing blocks up to 10 ~ 20mm. After sawing, saw cut should be left away from the blocks at the bottom of 20-40mm, knife blade to go about running, you should exit all blocks Jukou the blade from not less than 150-200mm, to prevent the blade hit Shortage material.
4, the blade idling stable only after a trial cut blocks are not allowed contact with the blade starts cutting edge blade, cutting blade rotation are not allowed to stop, to withdraw Jukou before stalling.
5, cutting blocks are shaking if found should immediately stop cutting the blocks to be firmly fixed before it can continue working, cutting, are not allowed to move in any blocks.
6, the cutting blade and found a  diamond discs significant slowdown or even clip knife phenomenon, it may be belt slippage, compression nut loose or too large depth of cut, the cutting speed is too fast and other reasons, should be timely adjusted.
7, the line speed should be processed stone hardness and wear resistance to adapt, line speed table are recommended cutting different types of stone. Tip: line speed is not high, an increase in cutting efficiency, will reduce the life of the blade. 8, feed rate, depending on the processing of the material properties of each material when the cutting depth must have a certain range of the feed rate, if the speed is too high, will accelerate the wear of diamond or even fall off, causing the blade consumption too fast, if the speed is too low, then they will make the process of self-sharpening blades can not be normal, so "blunt, skid" lost cutting capacity. Under normal circumstances, the feed speed is slower when cutting, sawing should be in uniform for the common typical materials, when the cutting depth is 20mm, recommend the following feed rate table for your reference, when the thickness changes, the cutting speed can be Press the cutting area (cm2/min) to conversion. Tip: The first feed or each piece of board should be reduced by half for the first three walks.
9, the cutting depth for medium hard stone such as marble, limestone cut through at once, for hard stone and abrasive such as large granite, sandstone should step cutting, saw cutting granite monolithic, eating knife depth is generally 10-20mm , depth of cut marble cutting 50-100mm, more than double-sided cutting hard granite, depth of cut of each 3-5mm, should be based on the hardness of the stone, using a saw blade and the fixed performance, efficiency recommend the following table for your reference. Common materials cutting efficiency table Note: "1" indicates low power finishing; "2" indicates a high power roughing.
10, the blade rotation direction of the ring saw blades  same stone as the feed direction along the cutting, contrary to reverse cutting, and reverse cutting, due to an upward vertical force component, in the form of stone off potential, therefore, is a solid stone, under the same conditions Next, you should try using smooth cutting. When using reverse cutting, cutting depth to be reduced, generally reduced to shun cutting 1/3-1/2.
11 In summary, the basic requirements for selection cutting process are: low hardness, good stone cutting performance can be deeply walking, brisk walking contrary shallow cut, ie corresponding to the same stone and saw and saw blade should be cutting efficiency, cutting board, good quality, long life blade and matrix process parameters prevail, the four complementary and mutually dependent, must not generalize. For example, when the saw blade cutting speed can not be maintained, indicating a blunt blade, cutting depth should be reduced while increasing the cutting speed to sharpening blades.

diamond grinding wheels made of

diamond cutter is made of diamond saws
The diamond tool machining brittle materials There are a variety of diamond saws and diamond grinding wheel, despite the application of various tools and processing characteristics are different, but the wear mechanisms are roughly the same, diamond grade, content, particle size, binder and diamond shape matching and tools related factors with the  diamond discs tool itself is an important factor affecting tool wear.
Typically diamond content, low power consumption is also low; however diamond content is too low, the macro may be exacerbated by fragmentation, resulting in a lack of blade height, so that power consumption actually increased; diamond content is high, the power consumption increases, leading diamond shedding tool-resistant grindability decreased. If the diamond grade higher in the case of lower levels, and its crystal structure was still intact higher nodal high abrasion resistance, low power consumption, but the diamond grade should be selected to match with the binding agent. Wu Jian and other analysis of diamond quality dispersion of the impact of the sawing process, pointing out that the wear resistance of diamond quality is good, must require binding agent also has good wear resistance, the only way to give full play to the role of high-quality diamond. While the low-quality diamond, due  9 inch saw blade to its compressive strength and impact resistance are poor, even easier cutting also occurs when the mineral composition of obvious wear and broken, especially difficult in the face of the cutting portion, generally occurs macro broken cutting ability and lose, then the wear resistance of the binding agent is required to be relatively low, in order to ensure there is enough of the diamond blade height. At the same time, should try to reduce the hole saw blades  quality of the diamond dispersion. By analyzing vitrified diamond grinding wheel spindle machining Sapphire deformation process (grinding required by deformation indicates normal load changes) and found that it becomes a periodic change, indicating wheel with self sharpness because vitrified grinding wheels wear of the material is brittle fracture binding agent, which will quickly a new abrasive grains. The metal and resin bonded grinding wheel wear is mainly friction and wear and abrasion. YCFu grinding wheel is given such an optimization model, through this model, according to the processing requirements and parameters to optimize grinding wheel (including grain size, concentration, stretched out rate and effective abrasive space), but also according to wheel optimization of grinding parameters and processing requirements (including grinding depth, wheel speed and workpiece feed rate). In addition there are many scholars have conducted a research in this area.

the proper use of

Cutting speed is too large, machine vibration, voice large, reduce the stability of the blade, the processing quality decreased, the cutting speed is too small, the production efficiency is lowered. The same feed rate, cutting the amount of increase per tooth, affecting the processing quality and life of the saw blade. Because blade diameter D and the spindle speed N is a power function, in practice, a reasonable increase speed and reduce the saw blade diameter is most economical.
3, quality bid:
As the saying goes: "not good goods cheaper, better router bits  goods are not cheap", on the other commodities that may true, but I am afraid that the tool tool is not at all clear; key is to match. On the job site of many factors: cutting objects such as equipment, quality requirements, quality of personnel and so on. Comprehensive assessment, sensible manner, the best use, just right, in order to save money, reduce costs, participation in the competition in the industry. This depends on the mastery of professional knowledge and understanding of information of similar products.
Second, the proper use of:
In order to play its best performance blade must be strictly in accordance with the standard use;
1, blades of different sizes and  wet granite pads uses, the design of the head and the base form angles differ by their corresponding possible occasions;
2, the device spindle and plywood size and shape and position accuracy effects have a significant impact on the use, installation and adjustment to be checked before the blade. Especially for plywood blade contact surface with the impact caused by the clamping force to slip displacement factors must be excluded;
3, pay attention to the work of the blade, an exception occurs, such as vibration, my voice, machined surface material moving situation, you must promptly stop adjustment, and timely grinding, maintaining peak interest;
4, grinding blade must not change its original angle, to avoid sudden thermal quench local head, the  diamond bandsaw blades best professional grinding
5, temporarily without the saw blade to vertical hanging, avoid prolonged flat, the matter should not heap pressure on it, head office to be protected, not allowed to collide.

CNC drilling machine drill bit selection methods

1, to understand the types and characteristics of the drill:
PCB drilling with a drill with straight shank twist drill, twist drill set and fixed shank shank Spade (undercut) drill bit. Straight shank twist drill mostly for single head machines, PCB drilling relatively simple or single panel, now in a large circuit board manufacturing plant has been rarely seen in its drilling depth of up to 10 times the diameter of the drill. Laminated on the substrate is not high, the use of drill bit holder to avoid bias. At present, most manufacturers use CNC drilling machine, CNC drilling using a carbide shank drill set, which is characterized to  metal drill bits achieve automatic replacement drill. High positioning accuracy without the use of drill sets. Large helix angle, chip speed, suitable for high-speed cutting. In the range of the flute length, diameter of the drill is an inverted cone, when drilling with the hole wall friction is small, high quality drilling. Common drill shank diameter of 3.00mm and 3.175mm.
2, pay attention to the drill material:
PCB drilling with carbide drill bit is generally used as the epoxy glass cloth complex copper plate on the tool wear particularly fast. The so-called carbide is tungsten carbide powder as matrix, cobalt powder as a binder by pressurized sintering. Generally contain 94% tungsten carbide, 6% cobalt. Because of its high hardness, very wearable, a certain strength, suitable for high-speed cutting. But the toughness is poor, very brittle, in order to improve the performance of cemented carbide, and some use carbide substrate in a chemical vapor deposition on a 5-7 micron layer of special hard titanium carbide (TIC) or titanium nitride (TIN), to has a higher hardness. Some use ion implantation technology, titanium, nitrogen, and carbon injection the matrix certain depth, not only improves the hardness and strength and regrinding the drill can move into when they injected ingredients. There is a physical method to generate the bit at the top of a layer of diamond film, which greatly improves the hardness and wear resistance of the drill. Carbide hardness and strength, not only the ratio of cobalt and tungsten carbide, but also with the powder particles about. Carbide drill ultra fine particles, and its average grain size of tungsten carbide with 1 micron or less. This bit is not only high hardness and compressive strength and flexural strength are improved. To save costs Many drill shank welded structure, the original as a whole are carbide drill, drill shank back now made of stainless, but significantly reduced the cost of the  tile cutting blades material due to different concentricity less than its dynamic rigid whole alloy drill, particularly in the small diameter side.
3, choose a good brand to ensure product quality:
Currently, a lot of drill manufacturers, sub-national and imported. Domestic products and foreign products compared to a slight gap between the price of course, but also slightly more expensive imports, the market also has production from Taiwan and Hong Kong, as well as part of the production in Taiwan to fight the U.S. and European brands of drill bits, compared with Europe and the United States Japanese imports of drill and stone polishing pads  stable quality, although the price is a little expensive but is good value for money for craft workers, the actual use of the process due to quality problems that occur drill probability is very small, such as the production of products require a higher recommended the use of imported drill, Europe and Japan drill hardness softer, Europe drill rather break than bend in use but not prone to bias Kong higher probability of breaking some flexibility over the Japanese finally broken drill holes prone to bias, but especially the small side holes drill bit. In the actual use of the process can be chosen according to demand.

power tool is developing developing

The domestic market and the international market capacity, though not as large, but demand is still small, and most of them are professional power tools, the sales price is higher, and thus economic good, as long as the attention to product quality, and constantly consolidate and expand market share, it also has future, the industrial saw blades   same can survive and develop. As the domestic market for power tools power tool quality and brand more critical, whether it is electric tool dealers, or direct users to attach great importance to the quality and brand power tools. Therefore, the concrete polishing pads  market to the good quality, good brand power tool inclination increased. As long as companies, vendors with a good read on the market after market, electric tools need not worry about sales.
Domestic users of electric tools increasingly demanding high quality, especially for product efficiency, weight, life expectancy and other indicators are very concerned. In the  wet polishing pad construction industry, for example, on the quality of domestic power tools mainly reflected as follows: Hammer easy to heat, continuous working time is short, small hammer impact, vibration, the operator can be pressing on into the deep, drill easy to wear, easy to off and so on.
In order to better explore the domestic market, more and more electric tool manufacturers and distributors pay more attention to scientific and technological innovation, quality win, to consolidate and expand new markets. Therefore, the power tool market brand awareness and brand effect is more obvious, a lot of little strength and size of power tools dealers, all of the distribution of a good brand power tools showed high enthusiasm.
And as manufacturers continue to attach importance to corporate brand building, investments in technology, develop new products, electric tools industry to achieve a small power tools from a single product to a diversified, large-scale, modern, large-scale, innovative technology for electric tools Series product direction, and quickly occupied the market ground.