drop hammer

noun

Origin:
1860–65, Americanism

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
drop hammer
 
n
another name for drop forge

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
In hammer forging, or drop forging, one die is on the stationary anvil block and the other on the ram or drop hammer.
After the fifth layer is compacted, set the leveling piston on the specimen and apply five blows with the drop hammer.
Another method for driving piles is the drop hammer method.
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