(i) Compare Open Die Forging and Close Die Forging. (ii) Explain with neat sketch process of Drop Forging.
(i) Difference between Open Die and Close Die Forging:
(ii)Drop Forging
Drop forging is carried out by using drop hammers. They are board or gravity hammer, air lift hammer and power drop hammer. Anvil of drop forging hammer is attached to the frame to permit accurate alignment of upper and lower dies. The ram is fastened to the lower end of vertical hard wood board.