Numerical analysis of thermal deformation and residual stress in automotive muffler by MIG welding

Abstract In the automotive industry, metal inert gas (MIG) of welding technology is widely used for automotive muffler fabrication. However, the muffler is distorted by thermal deformation during the welding process. In this paper, the prediction of MIG welding-induced deformation and residual stress are simulated by SYSWELD software. The cross-section shapes of the molten pool predicted by the numerical analysis are compared to the experimental results. In the results of the stress, while compressive stresses are produced in regions away from the weld, high tensile stresses are produced in regions near the weld. Deformation values are calculated as 2.5 mm. The location of the actual welding deformation was similar to the experimental results. Based on the results, the methods to optimize the welding procedure will be provided by SYSWELD to improve muffler productivity.

[1]  Hidekazu Murakawa,et al.  FEM prediction of buckling distortion induced by welding in thin plate panel structures , 2008 .

[2]  Gaurav Rajput,et al.  Influence of welding speed and power on residual stress during gas tungsten arc welding (GTAW) of thin sections with constant heat input: A study using numerical simulation and experimental validation , 2014 .

[3]  Jean-Baptiste Leblond,et al.  Prediction of welding residual distortions of large structures using a local/global approach , 2007 .

[4]  Hui-Qin Zhang,et al.  On aerodynamic noises radiated by the pantograph system of high-speed trains , 2013 .

[5]  A. Bachorski,et al.  Finite-element prediction of distortion during gas metal arc welding using the shrinkage volume approach , 1999 .

[6]  B C Lee,et al.  Automatic Generation of Hexahedral Meshes in Shell Structures , 2006 .

[7]  Naoki Osawa,et al.  Study on shell-solid coupling FE analysis for fatigue assessment of ship structure , 2007 .

[8]  P. Papanikos,et al.  Numerical simulation of the laser welding process in butt-joint specimens , 2003 .

[9]  K. C. Ganesh,et al.  Numerical simulation and experimental validation of arc welding of DMR-249A steel , 2016 .

[10]  Yukio Ueda,et al.  ANALYSIS OF THERMAL ELASTIC-PLASTIC STRESS AND STRAIN DURING WELDING BY FINITE ELEMENT METHOD , 1971 .

[11]  P. Maropoulos,et al.  Effects of welding speed, energy input and heat source distribution on temperature variations in butt joint welding , 2005 .

[12]  Wei Liang,et al.  Numerical simulation of welding distortion in large structures , 2007 .

[13]  J. Goldak,et al.  A new finite element model for welding heat sources , 1984 .

[14]  John W. H. Price,et al.  Comparison of experimental and theoretical residual stresses in welds: The issue of gauge volume , 2008 .

[15]  E. Friedman.  Thermomechanical Analysis of the Welding Process Using the Finite Element Method , 1975 .

[16]  Ghalib Tham,et al.  Investigation on welding distortion of combined butt and T-joints with 9-mm thickness using FEM and experiment , 2015 .

[17]  John Norrish,et al.  A validated thermal model of bead-on-plate welding , 2012 .

[18]  Li Dianzhong,et al.  FINITE ELEMENT SIMULATION OF WELDING RESIDUAL STRESS FOR BUFFER BEAM OF CRH2A HIGH SPEED TRAIN , 2014 .

[19]  Junghyun Lee.  Tolerance analysis and diagnosis modeling of assembly considering welding distortion and patterns , 2015 .

[20]  Yukio Ueda,et al.  A New Measuring Method of Residual Stresses with the Aid of Finite Element Method and Reliability of Estimated Values , 1975 .

[21]  G. A. Bilenko.  General capabilities of the software package welding simulation suite , 2011 .

[22]  P. Michaleris,et al.  Prediction of welding distortion , 1997 .

[23]  Ghalib Tham,et al.  Welding distortion analysis of multipass joint combination with different sequences using 3D FEM and experiment , 2013 .

[24]  Ji-Yeon Shim,et al.  Prediction of Residual Stress and Welding Deformation in Butt-weld Joint for Different Clamped Position on the Plates , 2014 .

[25]  Hidekazu Murakawa,et al.  Numerical simulation of temperature field and residual stress in multi-pass welds in stainless steel pipe and comparison with experimental measurements , 2006 .

[26]  C. Hackmair,et al.  Application of welding simulation for chassis components within the development of manufacturing methods , 2003 .

[27]  R. Charles,et al.  Finite element analysis of a single bead-on-plate specimen using SYSWELD , 2009 .

[28]  D. Deng,et al.  Prediction of welding distortion and residual stress in a thin plate butt-welded joint , 2008 .

[29]  Hisashi Serizawa,et al.  Actual application of FEM to analysis of large scale mechanical problems in welding , 2007 .

[30]  Mohd Ridhwan Mohammed Redza,et al.  Simulation and experimental study on distortion of butt and T-joints using WELD PLANNER , 2011 .