Other Welding Processes

Question 1

Electron Beam Welding

Answer 1

High density fusion process carried out by bombarding the joint with a highly focused beam of energy electrons.

Question 2

Laser Welding

Answer 2

Solid state ruby lasers or carbon dioxide gas lasers.

- Can produce very narrow deep welds

Question 3

Diffusion Welding

Answer 3

Solid state process, no melting. Bond achieved by atomic bonding through pressure and heat

Question 4

Explosion Welding

Answer 4

Uses explosive material to produce force needed to produce bonding through high-speed impact

• Sold state
• Bond without heat-affected zones (HAZ)

Question 5

Friction Welding

Answer 5

Generated through friction between the parts being joined at the point of contact.

Question 6

Thermite (or Thermit) Welding

Answer 6

Heat generated by chemical reaction.

- Used to weld rail

Question 7

Electro-gas Welding (EGW)

Answer 7

Gas metal arc conducted between cooled shoes as in Electro-slag Welding.
Instead of slag, the electrode is melted by an arc that burns in a shielding gas. A special flux cored wire is often used with or without a separate shielding gas.

Question 8

Electro-Slag Welding (ESW)

Answer 8

Layer of molten Slag covered the upper surface of the weld melting filler metal and adjacent parent metal.