Welding is a process of joining two similar or dissimilar metals with the help of heat with or without using filler metal and with or without the app- -lication of pressure...
1. A good weld is as strong as the base metal. 2. A large no. of metals\alloys can be joined by welding. 3. Repair by welding is very easy. 4. Welding can be easily mechanized. 5. Portable welding equipment is available. 6. General welding equipment is not very costly. 7. Total joining cost is less in case of welding joint. 8. Flexible in operation 9. Metal property does not changes.