摘要
对Q345多层多道焊的焊接过程进行了数值模拟,分析了焊接速度为6、8、10 mm/s时焊接接头的温度场和应力场分布。结果发现,随着焊接速度的增大,温度场分布变得细长,同时热影响区变小,焊接速度为8 mm/s时焊接质量最好。并获得了可靠的优化焊接工艺参数的数值模拟方法。
The welding process of Q345 steel was numerically simulated based on ANSYS software, the distribution of temperature and stress field at welding speed of 6 ram/s, 8 mm/s and 10 mm/s was nalyzed. The results show that, with the increase of welding speed, the temperature distribution becomes elongating, while the heat affected zone becomes smaller. The best welding quality is obtained at the welding speed of 8 mm/s. And a reliable optimization of welding parameters was obtained by numerical simulation method.
出处
《铸造技术》
CAS
北大核心
2013年第7期895-897,共3页
Foundry Technology
关键词
焊接速度
温度场
残余应力
数值模拟
热影响区
welding speed
temperature field
residual stress
numerical simulation
heat-affected zone
作者简介
何彩颖（1979-），女，四川广元人，讲师．研究方向：机械制图及机械设计方面的研究．E—mail：zhangxin2233@yeah．net
