Optimization of the Process Parameters for Controlling Residual Stress and Distortion in Friction Stir Welding

Cem Celal Tutum, Henrik Nikolaj Blicher Schmidt, Jesper Henri Hattel

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Abstract

In the present paper, numerical optimization of the process parameters, i.e. tool rotation speed and traverse speed, aiming minimization of the two conflicting objectives, i.e. the residual stresses and welding time, subjected to process-specific thermal constraints in friction stir welding, is investigated. The welding process is simulated in 2-dimensions with a sequentially coupled transient thermo-mechanical model using ANSYS. The numerical optimization problem is implemented in modeFRONTIER and solved using the Multi-Objective Genetic Algorithm (MOGA-II). An engineering-wise evaluation or ranking between alternatives of the trade-off solutions is dicussed briefly.
Original languageEnglish
Title of host publicationOptimization of the Process Parameters for Controlling Residual Stress and Distortion in Friction Stir Welding
Number of pages4
Place of PublicationItaly, Venice
PublisherTCN CAE 2008
Publication date2008
Publication statusPublished - 2008
EventTCN CAE 2008 - Italy, Venice
Duration: 1 Jan 2008 → …

Conference

ConferenceTCN CAE 2008
CityItaly, Venice
Period01/01/2008 → …

Keywords

  • Thermal constraints
  • Friction stir welding
  • Multi-objective optimization

Cite this

Tutum, C. C., Schmidt, H. N. B., & Hattel, J. H. (2008). Optimization of the Process Parameters for Controlling Residual Stress and Distortion in Friction Stir Welding. In Optimization of the Process Parameters for Controlling Residual Stress and Distortion in Friction Stir Welding TCN CAE 2008.