Securing method

Details Securing method Securing method

1997-02-19

1999-06-01

Hall, Carl E.

Metal working

Method of mechanical manufacture

Assembling or joining

2940708, B21D 3904

Patent

active

059078987

ABSTRACT:
A securing method including the steps of inserting a core into a depression portion of a metal member having an open end portion, and connecting the metal member to the core by compressing circumferentially the core and metal member by means of a compression die is disclosed. The improvement includes a step of compressing circumferentially the core and metal member in such a manner that an overall compression portion to be compressed by means of the compression die is divided into a plurality of compression regions arranged from the open end portion of the metal member to the other end portion, and a compression pressure is applied to the compression regions successively from the open end portion to the other end portion

REFERENCES:
patent: 2728343 (1955-12-01), Everett

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