Patent · US Expired

Hydroforming process

US6067831A · kind A · utility

40Cited by
4References
23Claims
0Family size

Assignees

Inventors

Key dates

Filing dateDec 23, 1998
Grant dateMay 30, 2000
Priority date
Expiry dateDec 23, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49805
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A hydroforming process for forming a component from an elongate tubular blank comprised of a deformable metal, the process including placing the blank in a die and sealing opposed ends of the tubular blank, heating the blank to a predetermined deformation temperature which is greater than 350.degree. C. but less than the melting point of the metal, supplying a gas at a predetermined pressure to the interior of the sealed tubular blank to cause deformation of said tubular blank at predetermined regions by drawing/stretching of the metal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.