Method of manufacturing chisel for impact tool
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United States of America Patent
Stats
-
Apr 22, 1997
Grant Date -
N/A
app pub date -
Apr 10, 1995
filing date -
Nov 25, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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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