Ques 1.What are Shielding gases?

Ques 2.What are Properties of Argon & Helium gases?

Ques3.Describe Characteristics & Comparative Performance of argon & helium as Shielding gases.

Ques 4.Comparision between Argon & Helium Shielding.

Ques 5.What is Gas Lens?

Ques 6.What are Defects ,Causes & effects of welds made by the TIG welding process?

Ques 7.What is Friction Welding?

Ques 8.Explain method of friction welding.

Ques9. What are the limitations & applications of friction welding?

Ques 10.What are the advantages of friction welding?