WORKING OF POWER DROP HAMMERS

Power drop hammer, better known as air or steam hammer, has the same principle as that of a steam forging, but differs from a forging hammer in that the anvil of the former is an integral part of the frame to maintain perfect alignment between the forging die elements used. The steam or air drop hammer has the same essential parts as the board hammer except that a steam or air cylinder, piston, and rod are substituted for the board lifting mechanism. A power hammer using air or steam at a pressure of 7 kg-f per cm2 (690 kN / m2) will supply two to two and half times as much energy as the same rating of gravity drop hammer.

Steam or air hammers are the largest of the forging hammers and are made from 450 to 25000 kg (mass) falling weight hammer with as anvil weighing 45,300 kg.

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Mechinopedia For Mechanical Engineers

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