Production Welding Concepts

How the welding is categorized based on Fusion,Non-Fusion and Pressure welding? or What are the different types of welding processes?

Welding is a process of joining two or more similar or dissimilar metals with or without the application of heat, with or without the application of pressure, with or without the application of filler material.

Therefore,In this article,I will be explaining about the explanation of all welding processes in detailed with the help of tree images.Welding processes is categorized as Fusion and (Non-Fusion & Pressure welding).

How the welding is categorized based on Fusion,Non-Fusion and Pressure welding? or What are the different types of welding processes?
What are the different types of welding processes?

Fusion Welding,(Non-Fusion & Pressure welding) are further classified as follows which is represented by a tree diagram.

Welding Processes in Detailed:

Tree Diagram of Fusion Welding Process:

Tree Diagram of Fusion Welding Process:
Tree Diagram of Fusion Welding Process:

Fusion Welding Process:

By melting of parent material,if the joint is produced called as Fusion Welding Process.

Fusion Welding Process is further classified as

1.Gas Welding

2.Arc Welding

3.Chemical or Thermit welding

Gas Welding Process:

By burning of gases,if the heat required for melting of plates is obtained called as Gas welding operation.

Arc Welding Process:

By using electric arc,if the heat required for melting of plates is obtained called as Arc Welding Operation.

Chemical Welding Process:

By using Exothermic Chemical Reaction,if the heat required for melting of plates is obtained called as Chemical welding process.

Gas Welding is further classified as follows:

  1. OXY-Acetylene Gas Welding
  2. Air-Acetylene Gas welding
  3. OXY-Hydrogen Gas welding
  4. Atomic Hydrogen Gas Welding
Gas Welding process
Gas Welding process

ARC Welding is further classified as follows:

  1. AC Welding
  2. DC Welding – Classified as DCSP/DCRP
  3. TIG Welding – Tungsten Inert Gas Welding
  4. MIG Welding – Metal Inert Gas Welding
  5. SAW Welding-Submerged Arc Welding

Tree Diagram of Non-Fusion Welding Process:

Non-Fusion welding classification
Tree Diagram of Non-Fusion Welding Process

Non-Fusion Welding Process:

Without melting of parent material,if the joint is produced called as Non-Fusion welding process.

or

Pressure welding:

With the application of pressure,if the joint is produced called as Pressure welding operation.

Cold Pressure Welding:

Joining of two metals at room temperature with the application of large amount of pressure called as cold pressure welding.

Cryogenic Welding:

If two metals are joined at a temp less than -183 ̊C and with the application of large amount of pressure called as Cryogenic welding.

Resistance Welding Operation:

Eventhough the resistance welding is classified under non-fusion welding processes but it is a fusion pressure welding operation.

Resistance welding
Resistance welding
  • The heat required for melting and joining of the plates is obtained through electrical resistance of the circuit.
  • Electrode material is selected such that it should have the lower electrical resistance,higher melting point temperature and high strength.
  • The most commonly used electrode materials in resistance welding are Copper,Tungsten,Copper-Tungsten alloy.

Resistance Welding Operation is classified as

  1. Fusion Welding Process
  • Resistance Spot Welding
  • Resistance Seam Welding
  • Projection Welding
  1. Non-Fusion Welding
  • Percusion Welding
resistance-welding
resistance-welding

 On the whole,these are the different types of welding processes in detailed.I hope this article is helpful to you.

If you have any queries,feel free to ask from the comments section.

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