A liquid phase has to be used in cold welding.(a) True(b) FalseThe question was asked by my school principal while I was bunking the class.My query is from Types of Welding topic in section Welding and Related Processes of Casting-Forming-Welding II

A liquid phase has to be used in cold welding.(a) True(b) FalseThe que

1.	A liquid phase has to be used in cold welding.(a) True(b) FalseThe question was asked by my school principal while I was bunking the class.My query is from Types of Welding topic in section Welding and Related Processes of Casting-Forming-Welding II
Answer» The correct option is (b) False The explanation: It is HOT WELDING that a liquid or a MOLTEN state is used for the joining of two pieces of metal. But in cold welding, there is no USE of a liquid phase, that is, joining is done without using heat.

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