Invention Application
- Patent Title: Method and apparatus for forming deep-drawn articles
- Patent Title (中): 用于形成深冲制品的方法和装置
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Application No.: US09832995Application Date: 2001-04-11
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Publication No.: US20020148272A1Publication Date: 2002-10-17
- Inventor: Robert M. Jroski
- Applicant: Bethlehem Steel Corporation
- Applicant Address: PA Bethlehem
- Assignee: Bethlehem Steel Corporation
- Current Assignee: Bethlehem Steel Corporation
- Current Assignee Address: PA Bethlehem
- Main IPC: B21D022/21
- IPC: B21D022/21

Abstract:
The invention is directed to apparatus and a method of using the apparatus to draw a blank into a product. The apparatus includes a die having a cavity to receive the blank being drawn into the product, a clamp adapted to apply an adjustable force against the blank during the drawing operation, and a mandrel comprising a plurality of nested tool segments, the tool segments independently extendable to engage and draw different portions of the blank into the desired product within the cavity.
Public/Granted literature
- US06505492B2 Method and apparatus for forming deep-drawn articles Public/Granted day:2003-01-14
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