发明名称 |
METHOD OF BROACHING HARDENED STEEL WORKPIECES WITH DIAMOND-TIPPED TOOLS |
摘要 |
A method of broaching a hardened steel workpiece with diamond-tipped tools includes forming a polycrystalline diamond insert and finish-grinding the polycrystalline diamond insert. The polycrystalline diamond insert is attached to an insert holder of a broach bar. A gear blank formed from steel is heat treated, and then an interior portion of the heat treated gear blank is broached with the broach bar. The broaching may occur in a single pass. Some embodiments of the method may further include forming the polycrystalline diamond insert by electrical discharge machining. Furthermore, finish-grinding the polycrystalline diamond insert may include grinding with a diamond grinding wheel. Attaching the polycrystalline diamond insert to the insert holder of the broach bar may include brazing.
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申请公布号 |
US2010150678(A1) |
申请公布日期 |
2010.06.17 |
申请号 |
US20080336806 |
申请日期 |
2008.12.17 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
LEV LEONID C.;XIAO XINGCHENG |
分类号 |
B23Q11/00 |
主分类号 |
B23Q11/00 |
代理机构 |
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代理人 |
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地址 |
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