发明名称 |
Expandable mandrel for use in friction stir welding |
摘要 |
A mandrel that provides a counter-force to the pressure exerted on the outside of a pipe or other arcuate surface by a friction stir welding tool, wherein the mandrel is expandable through the use of a wedge, and wherein the mandrel enables multiple friction stir welding heads to simultaneously perform welding on the arcuate surface. |
申请公布号 |
US8056797(B2) |
申请公布日期 |
2011.11.15 |
申请号 |
US20100694157 |
申请日期 |
2010.01.26 |
申请人 |
PACKER SCOTT M.;BABB JONATHAN A.;STEEL RUSSELL J.;RUSSELL MONTE;MEGASTIR TECHNOLOGIES |
发明人 |
PACKER SCOTT M.;BABB JONATHAN A.;STEEL RUSSELL J.;RUSSELL MONTE |
分类号 |
B23K5/22;B21B25/00 |
主分类号 |
B23K5/22 |
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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