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.
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
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