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The tipped inserts are mainly used for the turning of the hard metals and also the most conventional option for machining. V is another code for diamond shape (35 degree) K Shape is a parallelogram in shape (55 degree)ħ. D Shape is also a Diamond shape (55 degree)ģ. C shape is the diamond shape (80 degree)Ģ.

You should have detailed knowledge about all these shapes before you are going to buy.ġ. There are different shapes of inserts available in the market. advantages of lower cost and higher productivity make pcbn inserts with tipped cbn cutting edges are widely used for turing grey cast iron, nodular cast iron, ductile cast iron, hardened steel, high speed steel, bearing steel and ferrous alloys. Compared with grinding, both technical and economic benefits can be achieved by pcbn inserts turning, performance of tipped cbn inserts are significantly better than that attainable with conventional tool materials. Advantage of tipped pcbn inserts is the lower cost than solid cbn inserts and thoroughly brazed pcbn inserts, tipped insert is one use only economical type, it requires a carrier like tungsten carbide base as substrate for the insert, and substrate have a pocket that will accommodate and support the tip, the working tips are brazed to tungsten carbide base, 1~4 tips depends on different insert shapes, this braze joint of tipped pcbn inserts represents the weak link not so good as solid cbn inserts and thoroughly brazed pcbn inserts, the maximum cutting depth is not more than 80% of the tip length, tipped pcbn inserts could be used for rough to fine precision machining, continous to interrupted machining, to obtain a good surface finish.

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