The question was posed to me in class test.
This key question is from Forging topic in portion Types of Die & Metal Forming Processes of Casting-Forming-Welding II
Explanation: In the orbital forging process, forming is done to the meat part by using a cone-shaped die that is simultaneously rolled and pressed into the material. The metal part is supported on a lower die, because of inclined axis of cone. In the process, only a small area of the metal surface is compressed at the stage of forming.