Invention Grant
- Patent Title: Draw die and method of manufacturing same
- Patent Title (中): 拉模和制造方法相同
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Application No.: US12055257Application Date: 2008-03-25
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Publication No.: US08490456B2Publication Date: 2013-07-23
- Inventor: Amber Wang , Weilong Hu
- Applicant: Amber Wang , Weilong Hu
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Tung & Associates
- Agent Raymond L. Coppielle
- Main IPC: B21D22/00
- IPC: B21D22/00 ; B21D22/21 ; B21D37/10 ; B21J13/02 ; B21J13/04

Abstract:
The embodiment relates generally to a stamping or draw die used for forming a workpiece into a part or component using a first die shoe, a second die shoe and a punch wherein the punch draws the material into a cavity located in the second die shoe. The force is generated during the forming operation are often unbalanced which generates an uneven stress distribution on the component of the die assembly. By varying the position and angle of the guide surfaces located on the punch, first die shoe and second die shoe the stress can be distributed across a greater area of the respective die assembly component to reduce stress concentrations in a localized area and correspondingly reduce the potential for die failure.
Public/Granted literature
- US20090241628A1 Draw Die and Method of Manufacturing Same Public/Granted day:2009-10-01
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