Manufacture of metal tubes

Details Manufacture of metal tubes Manufacture of metal tubes

1991-04-11

1992-07-14

Heinrich, Samuel M.

Metal fusion bonding

Process

Using dynamic frictional energy

228114, 228147, 228148, 228156, 228 2, 228 9, 228102, B23K 2012

Patent

active

051295717

ABSTRACT:
An apparatus for forming metal tubes is shown in which a metal strip 2 is passed through the apparatus and is formed by a combination of rollers 17, 17', 19, and dies 15, 24 into a shape defining a tube. Prior to the completion of the formation of the metal strip 2 into a shape defining a tube, a brazing wire 1 is supplied through rollers 8 onto the metal strip 2 between two edge portions thereof to be bonded together. The edge portions are bonded together by means of a frictional wheel 27 rotating at high speed.

REFERENCES:
patent: 2032271 (1936-02-01), Enghauser
patent: 3949896 (1976-04-01), Luc
patent: 4144110 (1979-03-01), Luc

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