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U.S. Department of Energy
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Laser cutting with chemical reaction assist

Patent ·
OSTI ID:7233764
A method is described for cutting with a laser beam where an oxygen-hydrocarbon reaction is used to provide auxiliary energy to a metal workpiece to supplement the energy supplied by the laser. Oxygen is supplied to the laser focus point on the workpiece by a nozzle through which the laser beam also passes. A liquid hydrocarbon is supplied by coating the workpiece along the cutting path with the hydrocarbon prior to laser irradiation or by spraying a stream of hydrocarbon through a nozzle aimed at a point on the cutting path which is just ahead of the focus point during irradiation. 1 figure.
DOE Contract Number:
W-7405-ENG-36
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5164567; A
Application Number:
PPN: US 7-681293
OSTI ID:
7233764
Country of Publication:
United States
Language:
English

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