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Title: Simultaneous laser cutting and welding of metal foil to edge of a plate

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.
 [1];  [2];  [2]
  1. (Fort Collins, CO)
  2. (Golden, CO)
Issue Date:
OSTI Identifier:
Midwest Research Institute (Kansas City, MO) NREL
Patent Number(s):
US 5500503
Contract Number:
Research Org:
Midwest Research Institute
Country of Publication:
United States
simultaneous; laser; cutting; welding; metal; foil; edge; plate; method; ultra-thin; thicker; sheet; form; vacuum; insulation; panel; comprising; steps; providing; thickness; 002; top; bottom; clamping; clamps; heat; sinks; distribute; moving; relative; edges; overlapping; weld; beads; simultaneously; line; formed; weld line; weld bead; vacuum insulation; heat sink; metal foil; insulation panel; top plate; laser cutting; bottom plate; panel comprising; line formed; simultaneous laser; simultaneously cutting; distribute heat; ultra-thin foil; simultaneously cut; /219/52/