Invention Grant
- Patent Title: Stamping apparatus
- Patent Title (中): 冲压装置
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Application No.: US13100346Application Date: 2011-05-04
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Publication No.: US09149854B2Publication Date: 2015-10-06
- Inventor: Dajun Zhou , Changqing Du , Yang Hu , Yongjun Zhou
- Applicant: Dajun Zhou , Changqing Du , Yang Hu , Yongjun Zhou
- 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 ; B21D22/02

Abstract:
The present disclosure provides stamping apparatus for stamping a blank. The stamping apparatus includes a first die and a blank-holding ram. The first die includes a forming cavity and a depression positioned outboard of the forming cavity. The depression is defined by a first corner proximate the forming cavity and a second corner distal the forming cavity in the outboard direction from the first corner and the forming cavity. The blank-holding ram includes a bead configured to engage a portion of the blank into the depression when the blank is positioned between the first die and the blank-holding ram. The bead includes a third corner proximate the forming cavity and a fourth corner surface distal the forming cavity in the outboard direction from the third corner. The first corner of the depression includes a radii of curvature greater than a radii of curvature of the second corner of the depression and the radii of curvature of the third and fourth corners of the bead.
Public/Granted literature
- US20120279272A1 STAMPING APPARATUS Public/Granted day:2012-11-08
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