Question

Which of the following is a solid state joining process?

• A. Gas tungsten arc welding
• B. Friction welding
• C. Submerged arc welding
• D. Resistance spot welding

Hint:

Solid-state joining processes, like friction welding, do not involve melting the materials.

Answer 1

The Correct Option is B

Step 1: Understand solid-state joining processes.
Solid-state joining processes occur without melting the base materials. These processes rely on the application of heat and pressure to join materials. Step 2: Identify the correct process
- Friction welding is a solid-state joining process where heat is generated by friction, and the materials are welded without melting.
- The other options, such as Gas tungsten arc welding, Submerged arc welding, and Resistance spot welding, are fusion welding processes, which involve melting the base materials.
Step 3: Conclusion The correct answer is Friction welding. Final Answer: \[ \boxed{\text{Friction welding}} \]