Electric heating – Metal heating – For bonding with pressure
Patent
1985-04-23
1989-04-11
Shaw, Clifford C.
Electric heating
Metal heating
For bonding with pressure
219155, 219162, B23K 3500, B23K 1132
Patent
active
048208965
ABSTRACT:
The copper wires employed for electrical resistance seam welding of tinned sheet metal with the help of wire electrodes until now had to be taken back to the smelter as old metal after a few applications. The additional operating costs associated with this were until now unavoidable for long seam resistance welding of tinned sheet metal since multiple uses or applications of the copper wire for resistance seam welding have proven to be impossible in spite of years of research. The problem of these additional operating costs can be solved such that new copper wires with a reduced diameter can be directly drawn from the copper wire employed as wire electrodes for resistance seam welding after their use in welding. These wires then, for example, can be used as signal conductors or as windings. The properties of these wires are totally in accord with copper wires that are directly drawn from new copper. By this process, the additional operating costs mentioned above are substantially reduced and in many cases are even totally eliminated.
REFERENCES:
patent: 2838651 (1958-06-01), Smith
patent: 3596043 (1971-07-01), Sporri
patent: 3717745 (1973-02-01), Kosonen et al.
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patent: 4613740 (1986-09-01), Ichikawa
Smithells, C. J., Tungsten, Chapman and Hall, 1952, pp. 106-111.
Schuler-Prospectus, "LCS Body Welder".
Soudronic Propectus, "VSA 50 E".
Fankhauser Hanspeter
Weil Wolfgang H.
Elpatronic AG
Shaw Clifford C.
Sigda C. M.
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