GUIDANCE AND STABILISATION OF ELECTRIC ARC WELDING USING ND:YAG LASER RADIATION
The trend in production industry to lightweight construction using aluminium and high strength steels calls for faster, yet stable production processes. To realise these requirements, we have developed a gas metal arc welding process using laser radiation for guidance and stabilisation (LGS-GMA welding). In previous experiments, guidance and stabilisation of an electric arc using low power Nd:YAG laser radiation has been shown. Basic process parameters for maximization of the conductivity of the electric arc were obtained. First results on bead-on-plate welds with these optimized process parameters have demonstrated a doubling of the welding speed compared with an electric arc process alone. Transferring these results to square butt seams where the filling of the gap or the guidance of the arc is important should lead to a reduction of the heat input into the workpiece, resulting in a decreasing distortion of the workpiece. The paper will present the development and the experimental results of the LGS-GMA welding process with a higher welding speed on different seam geometries.
J(o)rg Hermsdorf Andreas Ostendorf Christian Stahlhut Alexander Barroi Frank Otte Rainer Kling
Laser Zentrum Hannover e.V. Hannover, 30419, Germany Laser Zentrum Hannover e.V.Hannover, 30419, Germany
国际会议
第三届太平洋国际激光与光学应用会议(PICALO 2008)
北京
英文
335-340
2008-04-16（万方平台首次上网日期，不代表论文的发表时间）