Welding Metallurgy
Chapter One
Fusion Welding Processes
Fusion welding processes will be described in this chapter, including gas
welding, arc welding, and high-energy beam welding. The advantages and disadvantages
of each process will be discussed.
1.1 OVERVIEW
1.1.1 Fusion Welding Processes
Fusion welding is a joining process that uses fusion of the base metal to make
the weld. The three major types of fusion welding processes are as follows:
1. Gas welding:
Oxyacetylene welding (OAW)
2. Arc welding:
Shielded metal arc welding (SMAW)
Gas-tungsten arc welding (GTAW)
Plasma arc welding (PAW)
Gas-metal arc welding (GMAW)
Flux-cored arc welding (FCAW)
Submerged arc welding (SAW)
Electroslag welding (ESW)
3. High-energy beam welding:
Electron beam welding (EBW)
Laser beam welding (LBW)
Since there is no arc involved in the electroslag welding process, it is not
exactly an arc welding process. For convenience of discussion, it is grouped
with arc welding processes.
1.1.2 Power Density of Hea ... read full excerpt from Welding Metallurgy, 2nd Edition ebook
