Electric heating – Metal heating – Wire – rod – or bar bonding
Patent
1979-09-17
1982-07-20
Truhe, J. V.
Electric heating
Metal heating
Wire, rod, or bar bonding
219 58, 219 87, 219 89, 140112, B23K 1132, B23K 1110
Patent
active
043408028
ABSTRACT:
A three-dimensional composite structural panel composed of a number of parallel trusses mutually spaced by interposed insulative elements and interconnected by cross wires, is fabricated by positioning a cross wire transversely of the longitudinal runner wires of trusses after they are stacked in alternation with the insulative elements, and then welding the cross wire to the runner wires at each point of contact. Rows of electrodes, one for each side of the lattice, are mounted to simultaneously resistance weld a single cross wire at each side of the lattice to all of the trusses of a panel. All of the electrodes are pressed against the wires to be welded by means of individual fluid motors energized with a common fluid pressure and separately driving individual electrodes. A plurality of backup fingers, normally positioned out of the path of motion of the stack of trusses and filler elements as the stack moves past the rows of opposed electrodes, are shiftable to a weld position in the path of extension of the runner wires and cross wires as they are pressed by the electrodes during the welding.
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The American Machinist Publication, Apr. 2, 1981, p. 119, Shows Hydraulic Control of a Number of Weld Electrodes.
Covington Brothers Technologies
George Keith E.
Truhe J. V.
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