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

A method is described for 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. 7 figs.
Inventors:
; ;
Issue Date:
OSTI Identifier:
203873
Assignee:
Midwest Research Inst., Kansas City, MO (United States) PTO; SCA: 420200; 360101; PA: EDB-96:060448; SN: 96001559455
Patent Number(s):
US 5,500,503/A/
Application Number:
PAN: 8-285,700
Contract Number:
AC36-83CH10093
Resource Relation:
Other Information: PBD: 19 Mar 1996
Research Org:
Midwest Research Institute
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 36 MATERIALS SCIENCE; METALS; LASER WELDING; CUTTING; THERMAL INSULATION; FABRICATION; FOILS; PLATES; LOW PRESSURE

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