Dissimilar Metal Welding Using Nd:YAG Pulsed Laser
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Authors
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Defence Metallurgical Research Laboratory, Hyderabad - 500058 ,IN
N. D. Pandey -
Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee - 247667 ,INN. Arora
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Defence Metallurgical Research Laboratory, Hyderabad - 500058 ,INArvind Bharti
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Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee - 247667 ,INP. Chakravorty
Keywords:
Pulsed Laser Beam Welding, Dissimilar Metal Welding, Pulsed Nd, YAG Laser. Permendur- 49, Stainless Steel-304, Expert System, Microstructure, Tensile Strength.Abstract
Pulsed laser beam welding Is a non-traditional technique for welding of a wide range of dissimilar metals. For optimizing parameters for welding of Permendur 49 with stainless steel-304, a detailed parametric study has been conducted using an industrial pulsed Nd :YAG laser. Effect of welding parameters on welds has been studied for controlling weld properties. Based on microscopic examination of simulated (bead-on-plate) welds on the constituents, an expert system has been developed. The expert system has been experimentally validated.
