Method of lap welding eventual can blank consisting of metal she

Details Method of lap welding eventual can blank consisting of metal she Method of lap welding eventual can blank consisting of metal she

1986-03-11

1988-03-22

Spruill, Robert L.

Metal deforming

By tool-couple pressing together adjacent surface portions...

To form longitudinally-seamed tube

219 83, 219 64, 219 84, 228150, B21D 3902, B21D 5128, B23K 1106

Patent

active

047320265

ABSTRACT:
A method of lap welding an eventual can blank of a metal sheet or the like by passing a lap joint between the upper and lower roller electrodes via upper and lower wire electrodes to be heated and simultaneously applied pressure, thereby forming continuous thermal press bond sections, wherein the width of the contact surface of the upper and lower wire electrodes is set to three times the width of the lap joint, and the thermal press bond sections are formed by thermal press bonding without fusion, the center-to-center distance between adjacent thermal press bond sections being set to be in a range of 0.8.+-.0.2 mm.

REFERENCES:
patent: 3596043 (1971-07-01), Sporri
patent: 3834010 (1974-09-01), Wolfe et al.
patent: 4160892 (1979-07-01), Opprecht et al.
patent: 4258245 (1981-03-01), Flaherty
patent: 4404447 (1983-09-01), Kitamura et al.

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