Finite Element Simulation of Pre-Heating Effect on Melt Pool Size During Micro-Plasma Transferred Arc Deposition Process

2018 2nd International Conference on Advanced Technologies in Manufacturing and Materials Engineering

Nikam, Sagar H^1 ; Jain, Neelesh K^2

Research Scholar, Discipline of Mechanical Engineering, Indian Institute of Technology Indore, Simrol

453 552 (MP), India^1

Discipline of Mechanical Engineering, Indian Institute of Technology Indore, Simrol

453 552 (MP), India^2

关键词: Deposition process;    Distribution of temperature;    Finite element simulations;    Heated substrates;    Melt pool size;    Micro-plasmas;    Substrate material;    Three dimensional finite element simulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/389/1/012006/pdf
DOI  :  10.1088/1757-899X/389/1/012006

来源: IOP

【 摘 要 】

This paper reports on simulating the effect of substrate pre-heating on melt pool size during deposition of titanium alloy (Ti-6Al-4V) on the similar substrate material using micro-plasma transferred arc (-PTA) deposition process. It involved (i) three-dimensional finite element simulation (3D-FES) of pre-heating of Ti-6Al-4V substrate material within the range of 400-450 K using furnace, (ii) simulating the formation of melt pool on the pre-heated and non-heated substrate material along -PTA torch movement and (iii) image processing of the melt pool to predict its width and depth obtained by -PTA deposition process. Obtained results revealed that (i) pre-heated substrate exhibited good distribution of temperature as compared to substrate exposed to ambient temperature and (ii) increase in melt pool width and depth has been observed for pre-heated substrate as compared to melt pool formed at ambient temperature which reveals that pre-heated substrate can be effectively used for depositing titanium alloy.