Development of a DC-LSND welding process for GMAW on DH-36 Steel

Authors

Raymond Holder, University Of Wollongong
Nathan Larkin, University of WollongongFollow
Huijun Li, University of WollongongFollow
Lenka Kuzmikova, University of WollongongFollow
Zengxi Pan, University of WollongongFollow
John Norrish, University of WollongongFollow

RIS ID

76975

Publication Details

Holder, R., Larkin, N., Li, H., Kuzmikova, L., Pan, Z. & Norrish, J. (2011). Development of a DC-LSND welding process for GMAW on DH-36 Steel. 56th WTIA annual conference 2011 (pp. 1-13).

Abstract

Weld induced distortion correction is a major cost within the shipbuilding industry. This paper investigates the use of an active cooling process known as Dynamically Controlled - Low Stress No Distortion (DC-LSND) Welding on DH-36 steel. Thermal profiles are obtained and distortion measurements are also achieved. Results show that the application of a localised cryogenic cooling source trailing the welding arc can significantly reduce weld induced distortion using the GMAW process. The effect of forced cooling on the weld microstructure is also observed.