SAW Flashcards
1
Q
Describe with the aid of a diagram the features of Submerged Arc Welding.
A
In submerged arc welding, a bare wire electrode is used.
It is fed automatically from a spool and generates an electric arc to heat the metal.
The flux, in powder form, is fed from a hopper to completely cover the joint and the tip of the electrode.
The arc creates the heat to melt the joint, flux and electrode.
Slag is formed to provide a protective coating for the weld.
The excess flux powder can be collected and used again.
Submerged arc welding is a fully automated process.
2
Q
Identify one use for SAW
A
Welding large steel beams or large steel pipes.
