发明名称 |
Force fit driving-in tool esp. for bolt - generates electromagnetically controlled mechanical stress wave which acts on bolt end |
摘要 |
<p>The bolt-driving tool provides a force-fit for the bolt in a hole whose diameter is smaller than that of the bolt. The tool generates electromagnetically a controlled mechanical stress wave which acts on the bolt end. The mechanical stress wave has a high particle velocity and is controlled by a conditioning unit which regulates the intensity and duration of the high-speed stress wave in such a way that during a considerable proportion of the wave's duration a high stress level is maintained. The conditioned stress wave brings about a contraction of the bolt at right angles to the direction of propagation of the wave. The wave is reflected from the far end of the bolt in order to bestow a high speed to that end and enable it to overcome any frictional forces between the bolt and the walls of the reception opening.</p> |
申请公布号 |
FR2323499(A1) |
申请公布日期 |
1977.04.08 |
申请号 |
FR19750028238 |
申请日期 |
1975.09.15 |
申请人 |
GRUMMAN AEROSPACE CORP |
发明人 |
BASIL P. LEFTHERIS |
分类号 |
B23P11/02;B23P19/02;B25C1/06;(IPC1-7):25C1/06;16B4/00;23P11/02 |
主分类号 |
B23P11/02 |
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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