Progress in the arc plasma temperature measurement and its finite element analysis in pulsed MIG welding process

• Published in: Materials today : proceedings Vol. 38; pp. 2745 - 2750
• Main Authors: Doshi, Sachindra, Jani, D.B., Gohil, A.V., Patel, C.M.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2021
• Subjects: Arc plasma; Emission spectroscopy; FEA; Laser scattering; Pulsed MIG welding; Pulsed MIG welding; Arc plasma; Emission spectroscopy; FEA; Laser scattering
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.08.680

The article focuses on the state of the art review of progress in the arc plasma temperature measurement, a lesser-explored area of pulsed metal inert gas welding because of technological and economic constraints. However, investigation of the arc plasma temperature is paramount for precise prediction in welding process simulation models. The dynamic behavior of arc plasma in the pulsed MIG welding process is a multifaceted heat mass transfer phenomenon involving chemical, electro-magnetic, and fluid dynamics. In the pulsed MIG welding process thermal, mechanical, and electrical phenomenon co-exists and results in the formation of all four states of matter in a very small fusion sphere. The paper throws light on the latest investigations on the importance of precise measurement of arc plasma temperature, techniques used for measurement of the arc plasma, and challenges associated with pulsed MIG welding. Moreover, unanswered characteristics of the welding fusion sphere with future directions are discussed in the challenges section. It will serve as a guide to researchers and industry for developing better insight for performing pulsed MIG welding, developing accurate numerical models of pulsed MIG welding, and will also provide sufficient base to focus on thrust area of pulsed MIG welding.