发明授权
- 专利标题： Methods and systems for reducing tensile residual stresses in compressed tubing and metal tubing products produced from same
- 专利标题（中）： 压缩管道和金属管材产品的拉伸残余应力减小的方法和系统
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申请号： US11847967申请日： 2007-08-30
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公开(公告)号： US07895875B2公开(公告)日： 2011-03-01
- 发明人: John A. Dickson , Dan Gadbery , Duane Bendzinski
- 申请人： John A. Dickson , Dan Gadbery , Duane Bendzinski
- 申请人地址： US PA Pittsburgh
- 专利权人： Alcoa Inc.
- 当前专利权人： Alcoa Inc.
- 当前专利权人地址： US PA Pittsburgh
- 代理机构： Greenberg Traurig, LLP
- 主分类号： B21D41/00
- IPC分类号： B21D41/00 ; B21C37/30
摘要：
Methods and systems for reducing the stress state of compressed ends of compressed tubes are disclosed. The methods and systems may provide a reduced tensile residual stress state, or even a compressive residual stress state. Tube products produced from the same are also provided.
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