Invention Grant
- Patent Title: Method and tool product of differential heat treatment process
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Application No.: US15913469Application Date: 2018-03-06
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Publication No.: US10434611B2Publication Date: 2019-10-08
- Inventor: Daniel M. Eggert
- Applicant: Snap-on Incorporated
- Applicant Address: US WI Kenosha
- Assignee: Snap-on Incorporated
- Current Assignee: Snap-on Incorporated
- Current Assignee Address: US WI Kenosha
- Agency: Seyfarth Shaw LLP
- Main IPC: C21D1/18
- IPC: C21D1/18 ; B23P15/00 ; B25B13/00 ; B25B15/00 ; B25B23/00 ; C21D9/00

Abstract:
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.
Public/Granted literature
- US20180193965A1 METHOD AND TOOL PRODUCT OF DIFFERENTIAL HEAT TREATMENT PROCESS Public/Granted day:2018-07-12
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