Three-dimensional particle simulation of buried space formation process during high current gas metal arc welding
Three-dimensional particle simulation of buried space formation process during high current gas metal arc welding
复制标题
大电流熔化极气体保护焊埋入空间形成过程三维粒子模拟
DOI：
10.1016/j.jajp.2020.100019
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
H. Terasaki
中科院分区：
文献类型：
--
作者：
Hisaya Komen;H. Baba;K. Kadota;T. Era;Manabu Tanaka;H. Terasaki
采用适合于数值模拟具有相变和大变形的流体行为的质点法，对埋弧焊中的液滴过渡模式和旋转过渡模式进行了数值模拟。采用数值模拟的方法，对熔滴过渡和旋转过渡条件下的埋弧空间和熔池形成过程进行了数值模拟，研究了电弧压力分布和熔滴在埋弧空间的传输位置对熔池形成过程的影响。最后，利用这些传递模式的组合条件来模拟低频调制电压控制进行了数值仿真。因此，在这项研究中开发的计算模型阐明了在埋弧焊埋弧空间形成过程中的滴过渡模式和旋转过渡模式的作用。此外，在以前的研究中，其中获得了深穿透深度，同时防止塌陷的埋地空间之间的转换模式，得到的实验结果的机制，定性澄清。
A drop transfer mode and a rotating transfer mode in high current gas metal arc welding named buried arc welding were modeled using a particle method that was suitable for numerical simulations of a fluid behavior with phase changes and large deformations. Numerical simulations of the buried space and weld pool formation processes in both a drop transfer condition and a rotating transfer condition were conducted using computational models to clarify the effects of the arc pressure distribution and the transport position of the molten metal droplets on the buried space. Finally, numerical simulations using conditions combining these transfer modes to imitate low frequency modulated voltage control were also conducted. As a result, the computational model developed in this study clarified the roles of the drop transfer mode and the rotating transfer mode in the buried space formation process during buried arc welding. Moreover, the mechanisms of the experimental results obtained in a previous study, in which a deep penetration depth was obtained while preventing the collapse of the buried space by switching between the transfer modes, were qualitatively clarified.
基于 DEM-ISPH 混合方法的埋弧焊焊剂熔化过程数值模拟
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
H. Komen;M. Shigeta;M. Shigeta;M. Nakatani;Y. Abe
通讯作者：
Y. Abe
DOI：
10.1016/j.ijheatmasstransfer.2018.01.059
发表时间：
2018-06
影响因子：
5.2
作者：
Hisaya Komen;M. Shigeta;Manabu Tanaka
通讯作者：
Hisaya Komen;M. Shigeta;Manabu Tanaka
影响因子：
1.2
作者：
Koshizuka, S;Oka, Y
通讯作者：
Oka, Y