Automated monitoring for clinching joints

Details Automated monitoring for clinching joints Automated monitoring for clinching joints

2004-02-13

2010-02-09

Ross, Dana (Department: 3725)

Metal deforming

With randomly-actuated stopping

Responsive to condition of work or product

C072S021400, C072S465100

Reexamination Certificate

active

07658089

ABSTRACT:
A system and method for monitoring clinched joints senses lateral displacement of die segments during formation of a joint, which depends on joint button diameter. The system determines whether a joint is acceptable by correlating acceptable button diameter with acceptable amount of punch advancement. A predetermined number of unacceptable joints indicates excessive punch and/or die wear.

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Westgate, S.A., How Do Mechanical Fasteners Measure Up to Spot Welding?,Mechanical Fastening Seminar, Troy, Michigan, Jan. 27, 1998.

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