Development of a control technique of GMAW process by numerical simulation

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H06937
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Osaka University
• Principal Investigator: Ogino Yosuke 大阪大学, 工学研究科, 助教 (30778262)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: ガスメタルアーク溶接 / 数値シミュレーション / アークプラズマ / 溶滴移行 / 電流波形 / シールドガス / 溶接材料

Outline of Final Research Achievements

In this study, influence of the welding power source, the welding material and the shielding gas on the behavior of the arc plasma and the molten metal in gas metal arc welding process is numerically investigated to realize a high quality welding process. The results obtained shows that it is important to design the properties of the welding material depending on the properties of the welding power source and/or the shielding gas. Especially, the surface tension and the electrical conductivity are very important to determine the behavior of the arc plasma and the molten metal. There is a possibility to develop a guideline for controlling the welding process by using the results obtained in this study.

Free Research Field

アーク溶接プロセスの可視化・シミュレーション