Invention Grant
- Patent Title: Method of forming a flanged tubular member in hydroforming
- Patent Title (中): 在液压成型中形成法兰管状部件的方法
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Application No.: US12360584Application Date: 2009-01-27
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Publication No.: US08171769B2Publication Date: 2012-05-08
- Inventor: Bruno Barthelemy , Ramakrishna P. Koganti , Lawrence Anderson Queener
- Applicant: Bruno Barthelemy , Ramakrishna P. Koganti , Lawrence Anderson Queener
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies
- Current Assignee: Ford Global Technologies
- Current Assignee Address: US MI Dearborn
- Agent Gigette M. Bejin; Fredrick Owens
- Main IPC: B21D15/03
- IPC: B21D15/03 ; B21D22/02

Abstract:
A method of forming a flanged tubular member includes the steps of: positioning a tubular blank in a die; applying nominal pressure; closing the dies; and increasing pressure within the blank, thereby converting the tubular blank to a hydroformed member having the flange and a hem with a cavity therein. The die halves define: a die tubular cavity portion; a die hem cavity portion; and a die flange cavity portion. Upon closing the die halves with nominal pressure and then increasing pressure, (1) the blank is deformed within the die tubular cavity portion; (2) the flange is defined from a portion of the blank in the die flange cavity portion; and (3) at least an intermediate hem is defined in the die hem cavity portion.
Public/Granted literature
- US20100186477A1 METHOD OF FORMING A FLANGED TUBULAR MEMBER IN HYDROFORMING Public/Granted day:2010-07-29
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