发明名称 |
Method of manufacturing chisel for impact tool |
摘要 |
A chisel and a method of manufacturing a durable chisel. An axial hole is formed in a chisel so that the hole is open at the chisel tip. Non-metallic powder is then supplied into the axial hole. A core member made of cemented carbide or other material harder than the chisel body is then press-fitted into the axial hole. By inserting the core member into the hole, the non-metallic powder flows so as to fill up any space between the rear end face of the core member and the closed end of the axial hole.
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申请公布号 |
US5621962(A) |
申请公布日期 |
1997.04.22 |
申请号 |
US19950419395 |
申请日期 |
1995.04.10 |
申请人 |
NIPPON PNEUMATIC MANUFACTURING CO., LTD. |
发明人 |
OKADA, HIROSHI;NAKAI, TETSUJI |
分类号 |
B23P11/00;B23P15/28;B25D17/02;E21B10/56;F16B4/00;(IPC1-7):B23P19/02 |
主分类号 |
B23P11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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