Keyhole welding with CF-TIG (cathode focussed GTA)

作者：Lohse M^*; Fuessel U; Schuster H; Friedel J; Schnick M

来源：Welding in the World, 2013, 57(5): 735-741.

DOI：10.1007/s40194-013-0074-y

• Cathodes
• GTAwelding
• TIG welding
• Stainless steels

In this paper, the results for keyhole welding of stainless steel 1.4301 and mild steel 1.0117 with a cathode focussed gas tungsten arc process are presented. These tests were carried out in preparation for welding the root faces of Y- or double V-groove weld preparations of thick metal plates. Welded plate thicknesses range from 6 to 10 mm for stainless steels and 6 to 12 mm for mild steels. Welding speeds are in the range of 20 to 115 cm/min at currents from 400 to 800 A. Especially for stainless steel, a big range of applicable and stable process parameters could be found. The process also works fine for mild steel even though the achievable parameter range is smaller.

• 出版日期2013-9