SUNConferences, RAPDASA 2014

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LASER METAL DEPOSITION THERMAL ANALYSIS USING FINITE ELEMENT METHOD
VAIBHAV VERMA, MUKUL SHUKLA

Last modified: 2014-11-02

Abstract


Laser Metal Deposition (LMD) uses a laser beam to form a melt pool of the fed metal powder to be deposited on a metal substrate. The powder melts to form a deposit that is fusion bonded to the substrate and the required geometry is built up by layer by layer deposition. In this work a three-dimensional finite element model has been developed to numerically simulate the heat transfer phenomenon in Laser Metal Deposition of both pure nickel and stainless steel. Temperature dependent physical properties have been accounted for. The commercially available finite element software ANSYS (Version 14) was used and codes were generated in Ansys Parametric Design Language (APDL) to analyse the influence of various LMD parameters on the thermal history. Thermal cycles experienced at different locations of the deposit were also validated, exhibiting similar trends as published in literature.


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