Procédé de soudage d'aciers alliés ou non alliés par laser continu au CO2 sous gaz de protection

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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Bibliographische Detailangaben
Hauptverfasser: LE GALL CHRISTIAN, MARCHAND DIDIER
Format: Patent
Sprache:fre
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Beschreibung
Zusammenfassung: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.