College

What is the preferred method of welding magnesium?

A. Gas welding
B. Arc welding
C. Tungsten inert gas (TIG) welding
D. Resistance welding

Answer :

Final answer:

The preferred method of welding magnesium is Tungsten inert gas (TIG) welding because it provides greater control and an inert gas shield to protect the reactive magnesium.

Explanation:

The preferred method of welding magnesium is Tungsten inert gas (TIG) welding. This process is chosen due to its ability to provide greater control over the weld than other methods, which is important because magnesium can burn and produce a bright light when heated if not handled properly. TIG welding uses a tungsten electrode to produce the weld and the inert gas, often argon, serves to shield the welding area from atmospheric gases that could affect the quality of the weld. This is especially important when welding magnesium due to its reactivity. Therefore, the correct answer to the question is c) Tungsten inert gas (TIG) welding.