Invention Grant
- Patent Title: Methods and systems for reducing tensile residual stresses in compressed tubing and metal tubing products produced from same
- Patent Title (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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Application No.: US11847967Application Date: 2007-08-30
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Publication No.: US07895875B2Publication Date: 2011-03-01
- Inventor: John A. Dickson , Dan Gadbery , Duane Bendzinski
- Applicant: John A. Dickson , Dan Gadbery , Duane Bendzinski
- Applicant Address: US PA Pittsburgh
- Assignee: Alcoa Inc.
- Current Assignee: Alcoa Inc.
- Current Assignee Address: US PA Pittsburgh
- Agency: Greenberg Traurig, LLP
- Main IPC: B21D41/00
- IPC: B21D41/00 ; B21C37/30
Abstract:
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.
Public/Granted literature
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