Invention Grant
- Patent Title: Stamping apparatus and method of use
- Patent Title (中): 冲压装置及使用方法
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Application No.: US13486067Application Date: 2012-06-01
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Publication No.: US09120137B2Publication Date: 2015-09-01
- Inventor: Dajun Zhou , Changqing Du , John F. Siekirk, III
- Applicant: Dajun Zhou , Changqing Du , John F. Siekirk, III
- Applicant Address: US MI Auburn Hills
- Assignee: FCA US LLC
- Current Assignee: FCA US LLC
- Current Assignee Address: US MI Auburn Hills
- Agent Ralph E Smith
- Main IPC: B21D22/22
- IPC: B21D22/22 ; B21D24/04

Abstract:
A stamping apparatus includes a lower die defining a cavity, with a land portion surrounding the cavity. A movable upper die includes a drawing punch that corresponds to the cavity. A binder movable towards the land portion of the lower die engages an edge portion of the blank, wherein the land portion of the lower die and the movable binder each include a plurality of beads that crimp the edge portion of the blank when the movable binder engages the edge portion of the blank. The plurality of beads are oriented orthogonal to a terminal edge of the edge portion. By orienting the plurality of beads in this manner, the crimped edge portion of the blank is allowed to move inboard towards the cavity when the blank is engaged by the drawing punch before being constrained by a throat portion defined by the binder and the lower die.
Public/Granted literature
- US20130319068A1 STAMPING APPARATUS AND METHOD OF USE Public/Granted day:2013-12-05
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