Experimental and numerical investigation of laser-FSW hybrid welding technique for high strength materials

Chaudhary, Amit and Mishra, Rajnish and Anwar Ali Anshari, Md and Imam, Murshid and Chintapenta, Viswanath (2022) Experimental and numerical investigation of laser-FSW hybrid welding technique for high strength materials. Materials Today: Proceedings, 65. pp. 3437-3448. ISSN 2214-7853

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Abstract

Friction stir welding (FSW) of high-strength materials and thicker plates has a number of challenges that are preventing widespread industry application such as (i) premature tool failure, (ii) selection of tool material and design, and (iii) weld productivity. A finite element (FE) based analysis for Laser-FSW hybrid welding technology is carried out in ABAQUS, commercially accessible FE software, to solve these typical difficulties. The thermal analysis of Laser-FSW hybrid technique is done using two moving heat sources for the case of 3.2 mm thick S45C steel plate. A negative moving heat source is placed as a replacement of the backing plate material in the high contact pressure region under the FSW tool. It was shown that the laser heat source needs to be 10 mm ahead of the FSW tool for achieving the duplex phase (Ferrite + Bainite/Martensite) microstructure. © 2022

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IITH Creators:

IITH Creators	ORCiD
Chinthapenta, Viswanath	UNSPECIFIED

Item Type:

Article

Uncontrolled Keywords:

Element models; Experimental investigations; Finite element modeling; Friction-stir-welding; High-strength materials; Higher-strength materials; Hybrid welding; Moving heat sources; Numerical investigations; Welding tools

Subjects:

Physics > Mechanical and aerospace

Divisions:

Department of Mechanical & Aerospace Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

13 Oct 2022 10:04

Last Modified:

13 Oct 2022 10:04

URI:

http://raiithold.iith.ac.in/id/eprint/10914