A mathematical model for weld heat sources based on a Gaussian distribution of power
density in space is presented. In particular a double ellipsoidal geometry is proposed so that …

Almost all welding technology depends upon the use of concentrated energy sources to fuse
or soften the material locally at the joint, before such energy can be diffused or dispersed …

As a metal additive manufacturing (AM) process, laser powder bed fusion (L-PBF) has been
widely used to produce parts with complex geometries. The large thermal gradient caused …

This paper summarizes progress in the development of methods, models, and software for
analyzing or simulating the flow of heat in welds as realistically and accurately as possible …

A three-dimensional model for direct laser metal powder deposition process and rapid
prototyping is developed. Both numerical and analytical models are addressed. In the case …

A three-dimensional finite element model of the heat flow during pulsed laser beam welding
is presented. The heat transfer and parametric design capabilities of the finite element code …

Laser-based additive manufacturing (LBAM) is a promising manufacturing technology that
can be widely applied in solid freeform fabrication (SFF), component recovery and …

The cost plays an important role in the design of engineering structures. This role can be
illustrated by an example. In the design of a crossing over a big river the designer has two …

This study involves thermal, metallurgical and mechanical analysis during tungsten inert gas
welding of Ti–6Al–4V alloy aiming at optimizing the welding current to enhance the …

This paper presents a study on optimization of process parameters using particle swarm
optimization to minimize angular distortion in 202 grade stainless steel gas tungsten arc …