CLASSIFICATION OF WELDING AND ALLIED PROCESSES

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ADVANTAGES AND DISADVANTAGES OF WELDING

CLASSIFICATION OF WELDING AND ALLIED PROCESSES

ADVANTAGES AND DISADVANTAGES OF WELDING

There are different welding, brazing and soldering methods are being used in industries today. There are various ways of classifying the welding and allied processes. For example, they may be classified on the basis of source of heat, i.e., blacksmith fire, flame, arc, etc. and the type of interaction i.e., liquid / liquid (fusion welding) or solid/solid (solid state welding). Welding processes may also be classified in two categories namely plastic (forge) and fusion. However, the general classification of welding and allied processes is given as under

(A) Welding Processes

1. Oxy-Fuel Gas Welding Processes

1 Air-acetylene welding

2 Oxy-acetylene welding

3 Oxy-hydrogen welding

4 Pressure gas welding

2. Arc Welding Processes

1. Carbon Arc Welding

2. Shielded Metal Arc Welding

3. Submerged Arc Welding

4. Gas Tungsten Arc Welding

5. Gas Metal Arc Welding

6. Plasma Arc Welding

7. Atomic Hydrogen Welding

8. Electro-slag Welding

9. Stud Arc Welding

10. Electro-gas Welding

3. Resistance Welding

1. Spot Welding

2. Seam Welding

3. Projection Welding

4. Resistance Butt Welding

5. Flash Butt Welding

6. Percussion Welding

7. High Frequency Resistance Welding

8. High Frequency Induction Welding

4. Solid-State Welding Processes

1. Forge Welding

2. Cold Pressure Welding

3. Friction Welding

4. Explosive Welding

5. Diffusion Welding

6. Cold Pressure Welding

7. Thermo-compression Welding

5. Thermit Welding Processes

1. Thermit Welding

2. Pressure Thermit Welding

6. Radiant Energy Welding Processes

1. Laser Welding

2. Electron Beam Welding

(B) Allied Processes

1. Metal Joining or Metal Depositing Processes

1. Soldering

2. Brazing

3. Braze Welding

4. Adhesive Bonding

5. Metal Spraying

6. Surfacing

2. Thermal Cuting Processes

1. Gas Cutting

2. Arc Cutting

Source A Textbook of Basic Manufacturing Processes and Workshop Technology by Rajender Songh.

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