Patent · US Expired

Method of joining metals of different physical properties

US4805280A · kind A · utility

10Cited by
15References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 16, 1988
Grant dateFeb 21, 1989
Priority date
Expiry dateFeb 16, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T403/4974
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A method of manufacturing wherein a first metal member is installed into a second metal member is disclosed. The first metal member is punched out of a stock into the second metal member which extrudes a slug. The combination is then placed over a flat surface and a second larger punch is applied to cause the slug to reflow back up into its original structure, but with that reflow crimping the first metal member that was punched out into a permanently attached place within the second metal member.

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