Power hammer
Mechanical forging hammer
Power hammer
Power hammers are mechanical forging hammers that use an electrical power source or steam to raise the hammer preparatory to striking, and accelerate it onto the work being hammered. They are also called open die power forging hammers. They have been used by blacksmiths, bladesmiths, metalworkers, and manufacturers since the late 1880s, having replaced trip hammers.
Read on Wikipedia · Image Rainer Halama, CC BY-SA 3.0
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