US2006081568A1PendingUtilityA1

Use of helium/nitrogen gas mixtures in up to 12kW laser welding

Assignee: BRIAND FRANCISPriority: Jun 14, 2002Filed: Nov 2, 2005Published: Apr 20, 2006
Est. expiryJun 14, 2022(expired)· nominal 20-yr term from priority
B23K 2103/04B23K 2103/05B23K 26/125B23K 26/32B23K 2103/08B23K 2103/14B23K 2103/50B23K 26/123B23K 35/383
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Claims

Abstract

Binary gas mixture for welding using a laser beam of up to 12 kW, consisting of 30% to 60% nitrogen by volume, the remainder (up to 100%) being helium. Application of this gas mixture to the welding of steel, stainless steel or titanium.

Claims

exact text as granted — not AI-modified
1 - 10 . (canceled)  
     
     
         11 . A binary gas mixture for laser beam welding consisting of 30% to 60% nitrogen by volume, and the rest being helium (up to 100 vol. %).  
     
     
         12 . The mixture of claim  1 , containing less than 59 vol. % nitrogen.  
     
     
         13 . The mixture of claim  1 , containing less than 58 vol. % nitrogen.  
     
     
         14 . The mixture of claim  1 , containing more than 50 vol. % nitrogen.  
     
     
         15 . The mixture of claim  1 , containing more than 52 vol. % nitrogen.  
     
     
         16 . The mixture of claim  1 , containing 53 to 55 vol. % nitrogen.

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