Method for continuous laser CO2 welding of either alloyed or non-alloyed steels under protective gases

The invention relates to a method for welding alloy steels or non-alloy steels using continuous-wave CO2 laser welding, comprising the blowing-in of a shielding gas in order to protect the molten metal from the action of the air, characterised in that the said shielding gas is a mixture of helium an...

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Bibliographic Details
Main Authors MARCHAND, DIDIER, LE GALL, CHRISTIAN
Format Patent
LanguageEnglish
French
German
Published 14.12.1994
Edition5
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:The invention relates to a method for welding alloy steels or non-alloy steels using continuous-wave CO2 laser welding, comprising the blowing-in of a shielding gas in order to protect the molten metal from the action of the air, characterised in that the said shielding gas is a mixture of helium and argon, comprising 18 to 55% by volume of helium with respect to the total volume of helium and argon. Use for the welding of all types of steel.
Bibliography:Application Number: EP19940401212