Question

In the electromagnetic forming process, the forming pulse is kept longer to optimize the use of energy.

(a) True

(b) False

This question was addressed to me in an online quiz.

My enquiry is from Electromagnetic Forming in chapter Types of Die & Metal Forming Processes of Casting-Forming-Welding II

Answer 1

The correct answer is (b) False

For explanation I would say: In the electromagnetic forming process, the metal absorbs energy from the magnetic field to get deformed. To utilize most of this energy to forming operation, and to reduce the energy loss due to resistance heating, the forming pulse is kept short for better optimization of energy produced by the magnetic field. In general, pulse has duration of between 10 and 100 second.