发明名称 |
Cylindrical hole and form centring and drilling device |
摘要 |
The invention relates to a device for the electrical discharge machining of at least one rectilinear cooling air passage (6) having a flared opening (8) in the wall of a hollow turbine vane (2). The inventive device comprises at least one forming electrode (10) attached to a first electrode holder and intended to produce the flared outlet opening. The forming electrode (10) comprises a first face(28a) which is provided with a groove for guiding a rectilinear electrode (7) designed to drill the rectilinear part of the air passage (6), a median portion (28) with a constant section and a pointed end portion with a section that decreases between the median portion and the point of the forming electrode.
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申请公布号 |
US2004074876(A1) |
申请公布日期 |
2004.04.22 |
申请号 |
US20030466557 |
申请日期 |
2003.07.25 |
申请人 |
VARIN JEAN-JACQUES FLORENTIN ANDRE |
发明人 |
VARIN JEAN-JACQUES FLORENTIN ANDRE |
分类号 |
B23H1/04;B23H7/26;B23H9/10;B23H9/14;(IPC1-7):B23H1/04 |
主分类号 |
B23H1/04 |
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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