Metallurgy Question:

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Why we are doing post heating in alloy steel welding?

Metallurgy Interview Question
Metallurgy Interview Question

Answer:

The preheating is application of heat to a base metal immediately before welding. Preheating helps reduce hardness in the metal.

In addition, the application of heat to the weld immediately after welding is post-heating .The Post heating helps reduce stress in the weld metal.

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