DYNAMIC TRANSPORTATION OF METAL VAPOR BY PLASMA JET AND VISUALIZATION OF HEAT TRANSPORTATION IN WELDING ARCS

2016 Fiscal Year Final Research Report

• Project/Area Number: 26249101
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Osaka University
• Principal Investigator: TANAKA MANABU 大阪大学, 接合科学研究所, 教授 (20243272)
• Co-Investigator(Kenkyū-buntansha): 茂田 正哉 大阪大学, 接合科学研究所, 准教授 (30431521) ; 田代 真一 大阪大学, 接合科学研究所, 助教 (70432424)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 可視化 / 計算工学 / シミュレーション工学 / 溶接 / アーク

Outline of Final Research Achievements

In order to evolve arc welding process from a skilled technique into a technology based on the science, this study aims at experimental understandings of dynamic plasma temperature and metal vapor density during arc welding process. Furthermore, this study focuses on visualizations of quantitative heat transportation phenomena together with metal vapor transportation by the plasma jet, through numerical simulations. The above experimental and numerical analyses have revealed the effect of arc plasma dynamics on the weld pool formation which is important for welding technology.

Free Research Field

溶接工学