Metallurgy Question:
Why we are doing post heating in alloy steel welding?
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.
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.