发明名称 |
Welded micro-drill |
摘要 |
A micro-drill has shank made of a stainless steel. A bit is integrated with the shank by welding and made of a tungsten carbide. A tapering portion is formed behind the bit. A welded segment is located between the shank and the bit. The micro-drill has a reinforced strength, and a minimum diameter of the bit can reach 0.1 mm.
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申请公布号 |
US2003082020(A1) |
申请公布日期 |
2003.05.01 |
申请号 |
US20010000054 |
申请日期 |
2001.11.01 |
申请人 |
LIN FAN-HSIEN;TSAI CHAO-FENG;CHEN CHI-FENG |
发明人 |
LIN FAN-HSIEN;TSAI CHAO-FENG;CHEN CHI-FENG |
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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