Aim of this Course is:

• Understand laser welding process simulation using Abaqus.

• To study the mechanical and thermal distribution on laser joining by developing a finite element model.

• Learn how to write subroutine Dflux code.

• To determine the effect of process parameter on laser joining.

Introduction to laser welding:

• Laser is a non-contact process that requires access to the weld zone from one side of the parts being welded and the weld is formed as the intense laser light rapidly heats the material-typically calculated in milli-seconds. In addition the laser is able to weld into areas with limited access weld joint.

• Laser welding process can be divided in two modes, keyhole, and conduction. The mode is depending on the intensity of the heat. Thinner power densities result in weaker penetration and will act like adding upper material to a thicker plate. This issue is called conduction welding. A denser power distribution will vaporize a few of the material and hence introduce a drawback pressure which can increase the depth and shape the bead as a keyhole. Owing to the unique properties of this mode, partial and completely penetrated welds can be done

Problem Description using Abaqus

• I will illustrate all you need regards to Laser welding using Abaqus software

• This study follow literature review date and very informative for researchers.

Results & Conclusions.

• I will observe Residual stress, Temperature distribution field.

• We can use our own models according to our needs.

• We can specify our needs and assumptions.

• Use defined function gives more idea what you’re going to do.