发明名称 |
Sintered-carbide twist drill |
摘要 |
The invention proposes a sintered-carbide twist drill, the cutting part of which is composed of polycrystalline diamond or the like. In order to prevent the machining of the hard material of the cutting body in the region of the helical flute, the helical course of the flute is ended at the joining base of the polycrystalline cutting part.
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申请公布号 |
DE3527933(A1) |
申请公布日期 |
1986.10.23 |
申请号 |
DE19853527933 |
申请日期 |
1985.08.03 |
申请人 |
HAWERA PRAEZISIONSWERKZEUGE GMBH |
发明人 |
SCHEUCH,ANTON;GAELLE,PETER |
分类号 |
B23B51/02;(IPC1-7):B23B51/02 |
主分类号 |
B23B51/02 |
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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