25-01-2012, 12:18 PM
COUPLED FIELD ANALYSIS OF A WELDED JOINT
FEM Welding.pdf (Size: 1.57 MB / Downloads: 73)
Introduction
Welding
Welding is the process used to join two or more pieces of metal together by applying thermal energy or pressure. It is a precise, reliable, cost-effective method for joining materials. This technique is widely used by manufactures to join metals and alloys.
Welding geometry
The weld geometry is chosen considering the welding process and thickness of the workpiece. It is important to choose a geometry which satisfies the required demands on strength and quality without an unnecessarily large weld volume
Arc Welding
Arc welding processes use a power source to create an electrical arc between the electrode and the workpiece, in order to join two metal pieces by fusion
(Figure 3). A shielding system is used to protect the molten weld metal from the air.
Laser Welding
Over the last decades, laser welding has become a widely accepted as joining method, due to it offers several advantages compared to other welding techniques, as soon as it is a good choice when classical joining methods are not suitable.