Eduardo Marques1, 2*, Alexandre Pereira1, João Ribeiro2, 3

1 Mechanical Engineering Department, Federal Center for Technological Education (CEFET/RJ) 522, Rua do Areal., Angra dos Reis, Rio de Janeiro 23953-030, Brazil
2 Deptartment of Mechanical Technology, Polytechnic Institute of Bragança (IPB) Campus de Santa Apolónia, Bragança 5300-253, Portugal
3 Sustainable Processes and Products, Mountain Research Center (CIMO) Campus de Santa Apolónia, Bragança 5300-253, Portugal


 

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ABSTRACT


The manufacturing processes involving thermal transitions have been more used in industries nowadays, being the welding one of the most widely used. The requirement to design and predict adverse conditions are fundamental to the development of any mechanical project. As a result, the market needs have motivated the companies to find faster and more effective solutions, being one of a recent tools an ACT (Ansys Customization Toolkit) called “Moving Heat Source”, in which is executed the Gaussian heat source to model welding and laser processes. Based on this, the present work proposes to evaluate the accuracy of that extension implementing a finite element model for the MAG/TIG welding processes in DINCK20 steel and Al6082-T6 aluminium alloy, comparing with one of the first mathematical model proposed by the literature (Rosenthal) and with a recent analytical method of high precision already validated experimentally. The results showed a smaller global error for MAG process (3~10%) when compared to TIG (15~18%) and, the temperatures measured on the surface of the plate presented errors lower than the bottom in both alloys.


Keywords: Numerical extension, Moving heat source, Finite element, Analytical method.


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ARTICLE INFORMATION


Received: 2021-01-05
Revised: 2021-05-13
Accepted: 2021-07-08
Publication Date: 2021-09-01


Cite this article:

Marques, E., Pereira, A., Ribeiro, J. 2021. Thermal evaluation of MAG/TIG welding using numerical extension tool. International Journal of Applied Science and Engineering, 18, 2021006. https://doi.org/10.6703/IJASE.202109_18(5).014

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