发明名称 |
Metal bonded drilling and boring tool |
摘要 |
A metal bonded drilling and boring tool which can prevent the separation of abrasive grains during drilling and boring to maintain a stable working performance for a long period of time without the need for tool exchange. The tool includes a rod-shaped body having a substantially semispherical front end portion and numerous abrasive grains bonded to an outer circumferential surface of the rod-shaped body at the front end portion and at a portion having a given length from the front end portion by a bond member formed primarily of copper alloy. The bond member contains a material selected from the group consisting of Ti, Al, and a mixture thereof. The copper alloy is selected from the group consisting of bronze containing 10 to 33 wt % of Sn, brass containing 5 to 20 wt % of Zn, and aluminum bronze containing 5 to 20 wt % of Al.
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申请公布号 |
US7603999(B2) |
申请公布日期 |
2009.10.20 |
申请号 |
US20040023160 |
申请日期 |
2004.12.28 |
申请人 |
TENRYU SEIKO KABUSHIKI KAISHA |
发明人 |
TAKEMURA SOKICHI;KUSACHI YOSHIKAZU;NAKAGAWA AKIHIKO |
分类号 |
B28D5/04;B23C5/10;B24D3/00;B24D3/02;B24D3/06;B24D7/00;B24D7/18;B28D1/14 |
主分类号 |
B28D5/04 |
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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