Tool for forming a crimped sleeve to tube joint

Details Tool for forming a crimped sleeve to tube joint Tool for forming a crimped sleeve to tube joint

1990-12-11

1992-06-16

Crane, Daniel C.

Metal deforming

By tool-couple embodying nonplanar tool-face

Similar tool-faces

29237, B21D 3710, B21D 4104

Patent

active

051216256

ABSTRACT:
A tool is provided of forming a sleeve to the joint of enhanced resistance to pressure loading and which can be employed with relatively large diameter pipes, in which the sleeve and tube are crimped to each other by diametrically opposite crimps extending concavely inwardly of the outer surface of the sleeve and convexly inwardly of the inner surface of the tube, the respective crimps being isolated from each other by struts extending parallel to the longitudinal axis of the sleeve and tube, provision being made for equalization of the stresses produced in a seal ring contained in an annular flange of the sleeve during compressive reduction of the annular flange, provision also being made for the axial movement of the sleeve relative to the tube during compressive reduction of the flange.

REFERENCES:
patent: 3018816 (1962-01-01), Cobaugh
patent: 3803897 (1974-04-01), Ridenour
patent: 3906619 (1975-09-01), Shaffer
patent: 4027519 (1977-06-01), Bachle
patent: 4072041 (1978-02-01), Hoffman
patent: 4192171 (1980-03-01), Hamilton

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