发明申请
- 专利标题: Curved extrusions and method of forming the same
- 专利标题(中): 弯曲挤压及其形成方法
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申请号: US10931680申请日: 2004-08-31
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公开(公告)号: US20060059848A1公开(公告)日: 2006-03-23
- 发明人: Tracy MacDonald-Schmidt , Kevin Slattery
- 申请人: Tracy MacDonald-Schmidt , Kevin Slattery
- 申请人地址: US IL Chicago 60606-1596
- 专利权人: The Boeing Company
- 当前专利权人: The Boeing Company
- 当前专利权人地址: US IL Chicago 60606-1596
- 主分类号: E04C2/38
- IPC分类号: E04C2/38
摘要:
A curved extrusion includes a body that has indefinite length and a cross-section, and that is formed to contour and at least one channel cut into the cross-section that is filled with deposited material such that said cross-section of said body is restored. By cutting the channels into the cross-section of the extrusion, the extrusion may be easily formed onto a contoured tool to be curved with lower forming and residual stresses and distortion. By filling the channels with deposited material, the original cross-section and strength of the extrusion can be restored. By adding a transverse stiffener, the strength of the original extrusion may not only be restored but also further improved. By depositing material to create structural features the cross-section of the extrusion may be locally changed. The method for forming curved extrusions of the present invention may be used, for example, to produce T-chords of an aircraft.