Cutting insert

Details Cutting insert Cutting insert

B - Operations, Transporting

23

C

B23C 5/00 (2006.01) B22F 5/06 (2006.01) B23B 31/11 (2006.01) B23C 5/10 (2006.01) B23P 15/28 (2006.01) E21B 10/62 (2006.01)

Patent

CA 2117457

A cutting insert having a cutting head and a coupling shank integral at one end thereof with the cutting head and including a screw threaded portion. The cutting insert is formed by a powder metallurgy process of compacting and sintering and the screw threaded portion is constituted by a substantially cylindrical body having a pair of diametrically opposed, longitudinally truncated planar portions interposed between substantially curved cylindrical portions having arcuate surfaces on which there are formed a non-continuous screw thread, the arcuate surfaces extending between 50 to 85% of the total peripheral extent of the cylindrical body of which they form part. There is also disclosed a powder metallurgy process for manufacturing the cutting insert.

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