Shaping process for producing grooves in hardened workpieces uses interchangeable tool plates whose engagement area is made from hard brittle material which breaks in event of excessive strain

摘要

The shaping process uses interchangeable plate-like tools of which at least the engagement area (72) of the tool (70) is made from a brittle, such as crystalline material such as CBN, ceramic, diamond or the like which is suitable for hard finishing and which breaks in the event of excessive strain. The finishing tool can be formed by a reversible plate having a triangular, polygonal,parallelogram or circular main faces with negative shapes (80,92) for producing grooves and protrusions. Can be used to produce threads.