Making panel reinforcements during hot stretch forming

Details Making panel reinforcements during hot stretch forming Making panel reinforcements during hot stretch forming

2006-08-29

2006-08-29

Omgba, Essama (Department: 3726)

Metal working

Method of mechanical manufacture

Utilizing transitory attached element or associated separate...

C029S464000, C029S469500, C072S379200

Reexamination Certificate

active

07096557

ABSTRACT:
Small sheet metal reinforcement pieces are co-formed with a larger sheet metal part during a hot stretch forming against a heated forming tool surface. Locator holes are made in blanks for the reinforcing pieces so they can be precisely located on locator pins in the forming surface where the reinforcing pieces are ultimately to be attached to the formed sheet part. A preheated blank of the larger part is stretched against the trapped reinforcement blanks and both the part and reinforcing pieces are shaped against the hot tool. The part and reinforcing pieces are removed and cooled, and the closely fitting reinforcing pieces attached to the part at a suitable later time.

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