Maryland's Defense Patent Database

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Compressed elastomer process for autofrettage and lining tubes

Patent image
ARL

An inventive process is provided for creating residual compressive stress at a surface of a structure without resort to custom mandrels and dangerous high-pressure fluids. The inventive process yields autofrettage of a structure such as a tube, gun barrel and the like, the structure having an outer surface and an inner surface.

Inventors: 
Carter, Robert Hansbrough; Derosset, William Steinle
Patent Number: 
Technical domain: 
Machine Tools
FIle Date: 
2008-07-21
Grant Date: 
2013-04-16
Grant time: 
1,730 days
Grant time percentile rank: 
31
Claim count percentile rank: 
7
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US ARMY