Method of joining a tube to a plate

Details Method of joining a tube to a plate Method of joining a tube to a plate

1975-11-11

1978-12-26

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

2924352, 2853825, 403284, B21D 3908, B23P 1102

Patent

active

041309324

ABSTRACT:
One end of a metal tube is joined tightly to a plate by locating the end portion loosely within an aperture in the plate and, in a single pressing operation, expanding the tube wall into engagement with the periphery of the wall of the aperture, buckling the tube wall to form a double-walled flange or collar against the side of the plate opposite the free end of the tube and crimping the free end of the tube radially outward to form a flange against the other side of the plate. Apparatus for carrying out the method includes a device for clamping the tube from the sides and a die which enters the free end of the tube for carrying out the expanding, buckling and crimping steps.

REFERENCES:
patent: 1447520 (1923-03-01), Schade
patent: 3140540 (1954-07-01), Greenman
patent: 3279051 (1966-10-01), Minshall
patent: 3280454 (1966-10-01), Rich et al.
patent: 3778090 (1973-12-01), Tobin

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