Simulation of laser and hybrid laser welding using SYSWELD / Robert Ngendang Lidam

Lidam, Robert Ngendang (2009) Simulation of laser and hybrid laser welding using SYSWELD / Robert Ngendang Lidam. Degree thesis, Universiti Teknologi MARA (UiTM).


A 3D finite element analysis has been developed and conducted using finite element code SYSWELD to simulate the laser welding process of concealed T-joint welding and hybrid laser welding process of one-sided T-joint. Material used in the research is mild steel plates (S355). The simulation was done to determine the optimum welding parameter and later to predict the distortion of T-joint plates using laser welding process. In order to determine the optimum welding parameter, various case studies were conducted by varying the laser power and welding speed as independent input variables while weld profile (bead width and depth of penetration) are dependent variables. SYSWELD, through heat source modeling, was capable to generate the weld profile of laser welding numerically which then was used to determine the optimum process parameter of laser welding. Transient simulation was performed for three case studies on various clamping conditions to predict the distortion by using the optimized parameter of laser welding. Selected simulation result was verified by comparing the welding profile from the simulation with the weld profile from analytical method of previous studies and found out to be in satisfactory agreement.


Item Type: Thesis (Degree)
Email / ID Num.
Lidam, Robert Ngendang
Email / ID Num.
Thesis advisor
Manurung, Yupiter Harangan Prasada
Subjects: T Technology > TA Engineering. Civil engineering > Engineering mathematics. Engineering analysis > Finite element method
T Technology > TS Manufactures > Metal manufactures. Metalworking > Welding
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Programme: Bachelor Engineering (Hons) Mechanical
Keywords: Hybrid laser welding, SYSWELD, 3D finite element analysis
Date: 2009
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