Question

Isothermal forging is also known as cold forging operation.

(a) True

(b) False

The question was asked during an interview.

This intriguing question comes from Forging in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II

Answer 1

The correct answer is (b) False

For explanation: Isothermal forging is a hot forging operation in which the metal part is maintained at some high temperature. The forging dies are also maintained at the same high temperature. In this method, the metal flows readily that reduces the amount of force required. But this process is expensive than the conventional forging and mainly used for materials like titanium and super-alloys.