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.