Method and tool product of differential heat treatment process

Details Method and tool product of differential heat treatment process Method and tool product of differential heat treatment process

B - Operations, Transporting

25

B

B25B 13/00 (2006.01) B21K 5/16 (2006.01) B21K 5/18 (2006.01) B25B 7/00 (2006.01) B25B 15/00 (2006.01) B25B 19/00 (2006.01) C21D 1/00 (2006.01)

Patent

CA 2645984

A tool having a relatively ductile working end for engaging workpieces and a relatively hard non-working portion for driving the tool is disclosed, and a process for making same. The tool is formed with the material in a first state, such as by cold-working, and then only the non--working portion is heat treated to a second state. The working end is thus maintained in the ductile state while the non-working portion is hardened, thus imparting different materials performance characteristics to working end and non-working portion.

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