Vasudevan R

Department of Design and Automation

School of Mechanical Engineering

Vellore Campus

Arungalai Vendan S

Thangadurai V

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Investigations on temperature distribution during revolutionary and zigzag movement of arc in magnetically impelled arc butt welding of tubes

International Journal of Applied Electromagnetics and Mechanics

Journal of Manufacturing Processes

Dynamic control of welding current and welding time to investigate ultimate tensile strength of miab welded T11 tubes

Journal for Manufacturing Science & Production

Experimental and Finite Element Simulation of MIABWelding of Alloy Steel Tubes in Pressure Parts

Temperature effect on electromagnetic forming process by finite element analysis

Some studies on the electromagnetic aspects governing the magnetically impelled arcs through experimentation, finite element simulation and statistical analysis

The International Journal of Advanced Manufacturing Technology

Development of a MIAB welding module and experimental analysis of rotational behavior of arc—simulation of electromagnetic force distribution during MIAB welding of steel pipes using finite element analysis

Numerically computed results of weld pool dimensions in conduction mode laser welding are sensitive to the estimated value of the actual beam energy absorbed by the substrate. In a conduction based heat transfer analysis, the incorporation of the laser beam induced energy as a surface only heat flux fails to realize enhanced heat transfer in weld pool as molten material attains higher temperature and convective transport of heat becomes predominant. An alternate is to include fluid flow analysis considering phenomenological laws of conservation of mass and momentum that greatly increases the complexity in modeling. Uncertainty of material properties such as effective thermal conductivity and viscosity in the weld pool also impedes such extensive fluid flow analysis. A simpler and tractable approach can be to consider a volumetric heat source within weld pool in a conduction based heat transfer analysis. Earlier efforts to accommodate volumetric heat source such as double-ellipsoidal form remained unpopular since the size of the final weld pool shapes is required to be known to begin with the calculation. The present work describes an improved approach where a volumetric heat source is defined adaptively as the size of the weld pool grows in size within the framework of a conduction based heat transfer analysis. The numerically computed results of weld pool dimensions following this approach have shown fair agreement with the corresponding measured values for laser spot weld samples. © 2009 Elsevier Masson SAS. All rights reserved.

International Journal of Thermal Sciences

Development of a finite element based heat transfer model for conduction mode laser spot welding process using an adaptive volumetric heat source

Journal	International Journal of Applied Electromagnetics and Mechanics
Publisher	IOS Press
ISSN	1383-5416
Open Access	0