Crack test for stamped flange

Details Crack test for stamped flange Crack test for stamped flange

2005-09-16

2008-08-19

Noland, Thomas P (Department: 2856)

Metal working

Method of mechanical manufacture

With testing or indicating

C073S865900, C083S102000

Reexamination Certificate

active

07412760

ABSTRACT:
A punch is provided with a detection system for evaluating crack defects in waste material removed during a clipping operation. The punch includes a clip ring and a clip insert for shearing excess material from a part processed therein. The excess material is engaged around the clip ring when sheared from the part. Frictional resistance between the waste material and the clip ring is evaluated in determining potential crack defects in the waste material.

REFERENCES:
patent: 7117574 (2006-10-01), Liu et al.
patent: 7162799 (2007-01-01), Moore et al.

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