The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 29, 2006

Filed:

Jun. 24, 2004
Applicants:

Michael D. Hanna, West Bloomfield, MI (US);

Stephen R. Koshorek, Royal Oak, MI (US);

Inventors:

Michael D. Hanna, West Bloomfield, MI (US);

Stephen R. Koshorek, Royal Oak, MI (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 17/00 (2006.01);
U.S. Cl.
CPC ...
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.


Find Patent Forward Citations

Loading…