Answer / Himansh Sagar

Welding processes can be classified based on several factors, such as heat source, melting action, and welding position. Some common classifications include:
1. Arc welding:n- Uses electric arc for heating.
2. Gas welding:n- Uses fuel gas and oxygen or air.
3. Resistance welding:n- Utilizes electrical resistance to produce heat.
4. Solid-state welding:n- Does not involve melting of the base metal.

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