planes of single crystal diamond tool selection

Diamond crystals are cubic plane, since each crystal form and surface atomic

arrangement atom density difference and the diamond cup grinding wheel  distance between the different

planes, resulting in a natural diamond crystal anisotropy, so the performance

of the diamond crystal surface only of the physical and mechanical different

performance, ease of manufacture and service life which are not the same, the

microstructure of the crystal surface damage strength are also significant

differences. Microscopic diamond crystals Hertz strength test method used to

determine, since the diamond is a typical brittle material, the strength values

​​are generally larger deviation depends on the morphology and distribution of

stress distribution range, so suitable analysis of probability theory. When the

effect of stress is the same, (110) crystal plane maximum probability of

damage, (111), followed by (100) crystal plane of the minimum probability of

breakage. Ie external force, (110) crystal face the most easily damaged, (111)

crystal face, followed by (100) the most difficult to break. Although the (110)

crystal plane grinding is higher than the diamond polishing pads  (100) crystal plane, but the

experimental results show that the (100) crystal face and the other plane has a

higher resistance to stress, corrosion, and thermal degradation capability.

Considering the combination of micro-strength, a (100) plane around the flank

of the tool to make easy tool edge grinding of high quality, easy to produce

microscopic chipping.
Normally be carried out according to requirements of the tool planes of the

single crystal diamond tool selection. In general, if the request to obtain the

highest strength diamond tool, should be used (100) surface as the tool before

the flank; if required resistance to mechanical wear diamond tool, the

selection of (110) crystal face as the tool before and after the diamond blade saws  flank; if

required chemical wear resistant diamond cutting tool, it is desirable use of

(110) crystal plane as the tool rake face, (100) crystal face as the flank, or

the front, flank are used (100) surface. These requirements are necessary to

achieve by means of crystal orientations.