production technology for carbide insert is based on powder metallurgy technology

technical progress is related mainly to the development of new spray techniques,such as,among others,the cold gas spray method,which enables obtaining many metal and alloy coatings with reduced oxidation and plasma spraying with axial injection of powders.

With the advanced industrial automation control equipment is more and more advanced and the computer into the hard alloy manufacturing enterprises, the production of cemented carbide control technology is more and more stable, controllable and reliable mechanical properties. The result is produced by the inserts becomes more and more consistent, the processing result of predictable and not because of different inserts batch processing different results,new technology also makes the size tolerance of sintering inserts band is narrower,higher precision,carbide inserts performance has been greatly improved.

The use of machining hard alloy cutter can not only gain better quality of machined surface is, can also get higher processing speed; carbide inserts can withstand the cutting heat is higher, which is the main reason to achieve higher metal removal rate.

Indexable inserts the production technology of powder metallurgy technology,which is based on the production process for preparation of cemented carbide mixture,pressing,and sintering, postprocessing and coating. Despite decades of above basic process remains the same, but with the progress of science and technology, but the inserts manufacturing has produced significant influence.

Now, a typical compressor inserts is often controlled by computer, the height of assembled engineering equipment.The design of some compressor can also be suppressed.The extraordinary progress from the multi axial pressing technology makes the production with complex shape of the inserts is possible, such as knife tip height is a big difference between the inserts (see figure 1). To suppress the inserts shape optimization gain more advanced technology, can not only ensure the smooth surface of the inserts and inserts production process is stable, but also improves the precision level of inserts surface. In addition, the technology of modern computer aided design and manufacturing (CAD/CAM) applications also brings benefits for the manufacturing of the inserts, the inserts is improved design the level of mold shape and precision parts get better possible. Has the ability to final sintering product oriented to simulate the suppression of the production process, in the design of the In the initial stage, the results can be modified from the design point of view, so as to promote the successful development of new inserts.

Control of inserts sintering technology also helps to improve the quality of the inserts in the production process. The process control to get the non uniform structure of gradient cemented carbide substrate during the sintering process, ensure that the cobalt rich layer of alloy surface with thin layer. The hard alloy based physical layer with gradient block surface crack, protect the hard alloy matrix is brittle and breakage resistance better. Nowadays, gradient cemented carbide tool often used in turning.