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Keyhole welding with CF-TIG (cathode focussed GTA)

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Abstract

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.

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Acknowledgments

The authors are very grateful for the financial support given by the ILB Brandenburg within the project “system4plus – Entwicklung Hochleistungs-WIG-Brenner” (in German) (contract no./Förderkennzeichen: 80142463).

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Authors and Affiliations

  1. Institute of Surface and Manufacturing Technology, Dresden University of Technology, Dresden, Germany

    M. Lohse, U. Füssel & M. Schnick

  2. Kjellberg Finsterwalde Plasma und Maschinen GmbH, Finsterwalde, Germany

    H. Schuster, J. Friedel & M. Schnick

Authors
  1. M. Lohse
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  2. U. Füssel
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  3. H. Schuster
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  4. J. Friedel
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  5. M. Schnick
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Corresponding author

Correspondence to M. Lohse.

Additional information

Doc. IIW-2392, recommended for publication by Commission XII “Arc Welding Processes and Production Systems.”

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Lohse, M., Füssel, U., Schuster, H. et al. Keyhole welding with CF-TIG (cathode focussed GTA). Weld World 57, 735–741 (2013). https://doi.org/10.1007/s40194-013-0074-y

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  • DOI: https://doi.org/10.1007/s40194-013-0074-y

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