发明名称 |
Method of short pulse hole drilling without a resultant pilot hole and backwall damage |
摘要 |
A method for removing material via a laser so as to reduce the formation of channels comprising the steps of emitting a laser pulse comprising a pulse energy, a pulse duration, and a fluence towards a surface of a drilling material the fluence of a value sufficient to avoid the formation of a channel in the drilling material at the surface to form a hole comprising a side wall and a bottom, shaping a spatial profile of the laser pulse such that the fluence is substantially uniform across the spatial profile; and emitting at least one subsequent laser pulse having a pulse energy, a pulse duration, and a fluence sufficient to avoid the formation of a channel at the bottom of the hole. |
申请公布号 |
EP1454704(A2) |
申请公布日期 |
2004.09.08 |
申请号 |
EP20040251193 |
申请日期 |
2004.03.02 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
BANKS, PAUL S.;PERRY, MICHAEL D.;STUART, BRENT C. |
分类号 |
B23K26/00;B23K26/38;B23K26/06;B23K26/073;B23K26/36;B23K103/04;B23K103/10;B23K103/12 |
主分类号 |
B23K26/00 |
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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