ALL GATE CONCEPTS Mechanical Basics

Why Post Heating in Welding Process is Necessary?

Post Heating in Welding Process: Preheating involves heating the base metal just the region surrounding the joint, to a specific desired temperature called as preheat temperature. Therefore, In this Article, I will be explaining the Post Heating in a detailed manner.

post heating in welding process

 Why Post heating in Welding is necessary?

  • Post heating is done in order to relieve further residual stresses present in the weld pool after heat treatment process also.
  • If post heating is not done,then residual stresses develops as cracks and propagates throughout, resulting in the failure of the material.
  • Therefore Preheating and Post heating must be done during welding.


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