Method of producing an expansion sleeve for a metallic expansion

Details Method of producing an expansion sleeve for a metallic expansion Method of producing an expansion sleeve for a metallic expansion

1985-01-08

1986-07-22

Combs, E. Michael

Metal deforming

Process

With attenuation, thickening, elongating or shortening of...

10 27PH, B21D 3100, B21K 176

Patent

active

046011927

ABSTRACT:
An axially elongated expansion sleeve is formed from an extruded cylindrically shaped blank with a blind hole in one end. An axially extending part of the blank from the other end is deformed into a U-shaped section of uniform thickness. The U-shaped section is upset so that it increases in thickness toward the other end. The upset U-shaped section is shaped to provide it with a cylindrically shaped outside surface with the inside base of the section sloping toward the axis of the sleeve in the direction toward the other end.

REFERENCES:
patent: 3117483 (1964-01-01), Brown
patent: 3296764 (1967-01-01), Tremblay
patent: 4464076 (1984-08-01), Leibhard
patent: 4520521 (1985-06-01), Miyake

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