Invention Grant
- Patent Title: Method of verifying the stress rolling of a metallic rim
- Patent Title (中): 验证金属边缘的应力滚动的方法
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Application No.: US379397Application Date: 1982-05-18
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Publication No.: US4419885APublication Date: 1983-12-13
- Inventor: Roy C. Holmstrom , John V. Liggett
- Applicant: Roy C. Holmstrom , John V. Liggett
- Applicant Address: PA Pittsburgh
- Assignee: Rockwell International Corporation
- Current Assignee: Rockwell International Corporation
- Current Assignee Address: PA Pittsburgh
- Main IPC: G01L1/00
- IPC: G01L1/00 ; B21D53/30 ; G01M17/02 ; G01N3/40
Abstract:
A method of verifying the stress rolling of a metallic rim includes the steps of taking a first hardness reading of the surface that is to have been stress rolled, taking a second hardness reading of a reference surface that has not been stress rolled and comparing the readings so that the first hardness reading will be significantly higher than the second only if the surface has been stress rolled.
Public/Granted literature
- US5701461A Method and system for accessing a remote database using pass-through queries Public/Granted day:1997-12-23
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