drop hammer


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drop hammer

[′dräp ‚ham·ər]
(mechanical engineering)
(metallurgy)
A hammer used in forging that is raised and then dropped on the metal resting on an anvil or on a die.

drop hammer

A heavy weight for driving a pile into the ground; dropped by gravity along a set of guide rails onto the head of the pile.
References in periodicals archive ?
The high-speed video sequences of six types of Al-PTFE specimens are presented in Figure 8 under drop hammer impact, and the drop hammer fell from [H.sub.50] for each type of the specimen.
Caption: Figure 8: The reaction process of specimens #1-#6 under drop hammer impact.
The contact type between drop hammer and beam was ASTS.
Caption: FIGURE 7: Numerical model of drop hammer impact test.
(a) by adjusting the drop hammer mass using 15 x 15 cm specimens (i.e.
(b) by keeping the drop hammer mass constant and varying the area of square cushions from 18 x 18 cm to 8 x 8 cm.
Eumuco-Verson die-forging presses range in capacity from 700 to 8800 tons, and such presses are "the successor to the drop hammer for high-volume forging accuracy." Verson also says that "die-forging presses are ecologically recognized as superior to forging hammers and screw presses because of recent advancements in automation and reduction in noise emission."
A drop hammer is lifted to a certain height and then falls freely to impact the piston rod of the damper.
The Reading-born man returns to his old club today, hoping to help Pompey claim the three points they need to drop Hammers to the bottom of the table.
The Stanley Works-Hydraulic Tools Product Group, Milwaukie, Ore., has announced the acquisition of Universal Technologies' line of Cyclone Drop Hammers.
It's helpful when looking for leaks to realise that there are some components of a compressed air system that are especially vulnerable, such as pneumatic cylinders, flanges, filters, tools, presses and drop hammers. But even if you know where to start looking, site surveys are laborious, time consuming and must be repeated regularly.