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.
Patent No.:
Date of Patent:
Jun. 27, 2023
Filed:
Jun. 15, 2021
Dajun Zhou, Troy, MI (US);
Chunlei Wang, Rochester Hills, MI (US);
Robert D Miller, Lake Orion, MI (US);
Kaiping LI, Shelby Township, MI (US);
Yongjun Zhou, Rochester Hills, MI (US);
Richard J Siemen, Shelby Township, MI (US);
Dajun Zhou, Troy, MI (US);
Chunlei Wang, Rochester Hills, MI (US);
Robert D Miller, Lake Orion, MI (US);
Kaiping Li, Shelby Township, MI (US);
Yongjun Zhou, Rochester Hills, MI (US);
Richard J Siemen, Shelby Township, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A stamping apparatus that includes an upper die, a blank-holding binder, and fixed lower die. The fixed lower die features a drawing punch and the upper die features a corresponding cavity. The fixed lower die includes a stake bead and a corresponding depression is present on the upper die. The blank-holding binder includes a draw bead and a corresponding depression is present on the upper die. In the stamping process, the draw bead engages a blank in a first stage, causing the blank to begin to stretch into the shape of the drawing punch with a greater tightened partially finished panel shape. In a second stage, the draw bead disengages the blank as the blank is drawn towards the drawing punch. In a final stage, the stake bead engages the blank to tighten the blank around the drawing punch into a final shape.