CVD diamond due to its polycrystalline structure, can produce more than the actual fracture toughness of natural diamond (fracture resistance). The characteristics such as intermittent cutting and grinding wheel finishing offensive in the mechanical processing proved to be very beneficial. Usually, mechanical robustness of CVD diamond is similar to the robustness of advanced ceramics.

Carefully designed and manufactured independent CVD diamond chip fracture toughness, strength and other key properties, can improve in CNC high-speed rotating grinding wheel dressing, or approximate dry processing of aluminum and metal matrix composite materials of high performance cutting tools.

CVD diamond tools and PCD cutting tool manufacturing mode similar to the diamond blade is soldering in tungsten carbide and HSS tool with the Angle of the incision, with a diamond grinding wheel knife tools. Thick film king kong flint blades solid brazing technology is developed in the 1990 s, the technology has solved the metal cutting, diamond coating film on the adhesive of the carbide insert and blade selection problem. And used in machining of gold corundum coating the adhesive of the carbide blade and blade choice has been widely regarded as has a negative effect on machining. Most independent used to cutting tools of the thick film CVD diamond material is about 0.5 mm thick. Relatively smooth, fine particles (about 1 (including m) surface of the crystal nucleus generally be polishing, used as a cutting tool in the forward face; Side of the surface of the coarse particles (> 50 (including m) by vacuum brazing in tungsten carbide blade or HSS tool body.

Although strict control is the key of CVD process, but ultimately decided the blade quality and robustness or manufacturing of tools. Most experienced manufacturers for PCD industry often use the grinding grinding wheel, and in order to adapt to improve the hardness of CVD diamond material, they extended the grinding time.

J&M with PCD diamond tool company formula of CVD diamond grinding wheel grinding, contrast in PCD cutting tools, grinding a CVD diamond cutting tools edge to multi-purpose between 10% ~ 20%. Extend the blade grinding time, however, can make cutting tools manufacturers get better than that of PCD cutter blade surface roughness. Because of the CVD diamond more wear resistant than PCD, so simply increase the feeding of grinding wheel can produce an excessive damage to the CVD diamond tools cutting edge grinding force.

Thick film CVD diamond can be used to produce a brazing with the fine grinding side, mirror surface roughness (Ra < 0.05 (including m) of the cutting blade. Contrast to the CVD diamond film coating, thick film the blade of this unique properties make the surface roughness of the workpiece can produce a good. In thick film CVD diamond cutting tool selection also offers the chance to replace single crystal diamond tool.

Robustness of independent CVD diamond materials and abrasion resistance makes it a high silicon aluminum milling machining of widespread application of good choice. CVD diamond tool life when machining aluminum alloy often commercial PCD cutting tool life is 1.55 times. The actual improvement depends on the aluminum alloy, cutting tool design and manufacturing technology. CVD diamond cutting tools are often used for cutting piston, aluminum wheel fine cars and other high silicon aluminum materials and general mechanical processing of metal matrix composite materials required by the intermittent cutting. Although high silicon aluminum always CVD diamond research objects, but the diamond blade knives in low silica alumina materials mechanical processing is becoming more and more popular. High productivity in machining or precise finishing all requires the use of diamond cutting tools. A car manufacturing company a aluminum parts for the finishing operation, CVD diamond blade cutting tools more durable than PCD 30%, not only in the cutting tool and the whole life, can work out the required surface roughness in succession.