1.

The efficiency of electromagnetic forming mainly depends on the resistivity of material being formed.(a) True(b) FalseThis question was posed to me in a job interview.Origin of the question is Electromagnetic Forming topic in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II

Answer»

The CORRECT choice is (a) True

Easiest explanation: The electromagnetic forming method uses a CAPACITOR and forming coil to create intense magnetic FIELD. The efficiency of the magnetic pulse mainly depends on the resistivity of the material being FORMED. For better output, the resistivity of the material must be less than 15 micro-ohm-centimeters.



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