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《China Mechanical Engineering(中国机械工程)》 2002-03
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Establishment of Line-Gauss Heat Source Model and Application in Welding Numerical Simulation

CAI Zhipeng(Tsinghua University,Beijing,China)ZHAO Haiyan LU Anli SHI Qingyu  
In view of the characteristics of welding heat source, a new model named Line-Gauss heat source on the basis of achieved Gauss model is established to improve calculation efficiency. The new model reduces the time increment steps used to describe the movement of heat source dramatically. A typical welding process is simulated by using both Gauss and Line-Gauss sources. The results show that by using the new model analysis time can be reduced greatly while high precision is still obtained, and this method makes 3D simulation of some products with long welding be practical. Just with Line-Gauss source the cutting process of side plate of bridge cane beam is simulated , and the results fairly coincide with real measurements.
【CateGory Index】: TG40
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