Modelling Laser Welding with Abaqus

Name: Modelling Laser Welding with Abaqus
Rating: 3.7 (28 reviews)

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Created byAli Nasser

Last updated 5/2022

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What you'll learn

Abaqus advanced tools related to laser welding
How to write coding of Dflux subroutine
You will be aware of laser welding process
Very informative data for researchers

Course content

1 section • 11 lectures • 1h 22m total length

Introduction4:11
Explore laser welding modeling with Abaqus to simulate thermal mechanical distribution and residual stress in laser joining using finite element analysis, covering conduction and keyhole modes.
2-Problem Description5:53
Model laser welding in Abaqus by examining beam radius, mesh size, power, welding speed, and penetration for stainless steel 304 using gaussian heat sources, and compare simulation with experiment.
3-Geometry modeling3:49
Explore geometry modeling for laser welding in Abaqus by building a two-plate model, setting the origin, and defining rectangular dimensions in metres for accurate simulations.
4-Apply Material8:24
5-Assembly model4:45
6-Step model8:20
Create a 6-step Abaqus model for laser welding, using a transient temperature and displacement analysis with heat source and cooling, and define welding and cooling times, distance, and nonlinear increments.
7-Mesh model12:52
Learn to create a laser welding mesh in Abaqus by choosing mesh controls and element types, and set the mesh size to about half the laser beam diameter.
8-Interaction model6:56
Apply an interaction model in Abaqus to implement convection, conduction, and radiation on surfaces, with surface film condition, heat transfer coefficients, ambient temperature, and the Boltzmann constant, plus contact ties.
9-Load of model6:17
Model laser welding in Abaqus by implementing a Gaussian heat source with an external heat flux subroutine, defining body heat flux and boundary conditions for the welding step.
10-Coding of model18:55
learn to implement laser welding model in Abaqus by writing a user subroutine that defines parameters and flux Q1, Q2, Q3 for the heat source with x y z coordinates.
11-Results1:47

Requirements

Abaqus Fundamental

Description

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.

Who this course is for:

Engineers
Studend
researcher