NUMERICAL SIMULATION OF TEMPERATURE FIELD OF MAG VERTICAL WELDING WITHOUT PENETRATION

摘要：

In this paper, temperature field of MAG vertical butt welding was simulated and analyzed by use of SYSWELD code. The grid model of the butt weld without penetration was established with the gap considered. A new combined heat source function—double ellipsoid + Gaussian cylindrical was established to simulate the welding process accurately and the function model programme is built with FORTRAN. The influence of the simulation parameters such as heat efficiency, heat partition coefficient, and thermal emission coefficient on the temperature field distribution was studied. The simulated molten pool shape and temperature cycling curve at the tested point were matched with the experimental results.

关键词： Numerical Simulation MAG vertical welding temperature field combined heat source model.

作者: Yue Chena Jianmin Han Zhiyong Yang Zhenjiang Li Zhiqiang Li

作者单位: Engineering Research Center of Structure Reliability and Operation Measurement Technology of Rail Guided Vehicles,Beijing Jiaotong University,Beijing

会议类型: 国际会议

会议名称: The International Conference on Advanced Technology of Design and Manufacture 2010(2010先进设计与制造技术国际研讨会)

会议地点: 北京

会议语种:英文

页码: 41-44

在线出版日期: 2010-11-23（万方平台首次上网日期，不代表论文的发表时间）