Electric heating – Metal heating – By arc
Patent
1994-08-04
1996-03-19
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
21912163, 527881, B23K 2600, B23K 2602
Patent
active
055005039
ABSTRACT:
A method of welding an ultra-thin foil to the edge of a thicker sheet to form a vacuum insulation panel comprising the steps of providing an ultra-thin foil having a thickness less than 0.002, providing a top plate having an edge and a bottom plate having an edge, clamping the foil to the edge of the plate wherein the clamps act as heat sinks to distribute heat through the foil, providing a laser, moving the laser relative to the foil and the plate edges to form overlapping weld beads to weld the foil to the plate edges while simultaneously cutting the foil along the weld line formed by the overlapping beads.
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Benson David K.
Pernicka John C.
Tracy C. Edwin
Evans Geoffrey S.
Midwest Research Institute
O'Connor Edna M.
Pelham J.
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