Tube expander

Details Tube expander Tube expander

1978-05-24

1980-02-05

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

Tool orbiting or rotating about an axis

72125, 29727, B21D 3906

Patent

active

041865847

ABSTRACT:
A tube expander of the roller and mandrel type for expanding tubes within tube sheets having a housing assembly which includes a bearing mounted stop collar having a plurality of load-absorbing fingers provided with arcuate faces for limiting the axial position assumed by the tube relative to the tube sheet during the expansion of the tube. The arrangment includes a provision for predimensioning the portion of the tube which is ultimately to be exposed from the tube sheet whereby spacer members of selected thicknesses may be removed and installed on site.

REFERENCES:
patent: 260555 (1882-07-01), Ferguson
patent: B377683 (1975-01-01), Martin
patent: 483920 (1892-10-01), Henderer
patent: 1680922 (1928-08-01), Wiedeke
patent: 2649889 (1953-08-01), Dudley
patent: 3426565 (1969-02-01), Schott
patent: 3906771 (1975-09-01), Martin
patent: 4090382 (1978-05-01), Schott

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