Definition of Hammer harden. Meaning of Hammer harden. Synonyms of Hammer harden

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Definition of Hammer harden

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Hammer hardening
Hammer Ham"mer, n. [OE. hamer, AS. hamer, hamor; akin to D. hamer, G. & Dan. hammer, Sw. hammare, Icel. hamarr, hammer, crag, and perh. to Gr. ? anvil, Skr. a?man stone.] 1. An instrument for driving nails, beating metals, and the like, consisting of a head, usually of steel or iron, fixed crosswise to a handle. With busy hammers closing rivets up. --Shak. 2. Something which in firm or action resembles the common hammer; as: (a) That part of a clock which strikes upon the bell to indicate the hour. (b) The padded mallet of a piano, which strikes the wires, to produce the tones. (c) (Anat.) The malleus. See under Ear. (Gun.) That part of a gunlock which strikes the percussion cap, or firing pin; the cock; formerly, however, a piece of steel covering the pan of a flintlock musket and struck by the flint of the cock to ignite the priming. (e) Also, a person of thing that smites or shatters; as, St. Augustine was the hammer of heresies. He met the stern legionaries [of Rome] who had been the ``massive iron hammers' of the whole earth. --J. H. Newman. Atmospheric hammer, a dead-stroke hammer in which the spring is formed by confined air. Drop hammer, Face hammer, etc. See under Drop, Face, etc. Hammer fish. See Hammerhead. Hammer hardening, the process of hardening metal by hammering it when cold. Hammer shell (Zo["o]l.), any species of Malleus, a genus of marine bivalve shells, allied to the pearl oysters, having the wings narrow and elongated, so as to give them a hammer-shaped outline; -- called also hammer oyster. To bring to the hammer, to put up at auction.

Meaning of Hammer harden from wikipedia

- mining hammers, and the most likely explanation for its enca****t in rock is that a deposit of highly soluble travertine formed and hardened around it...
- cross-peen hammer, diagonal-peen hammer, point-peen hammer, or chisel-peen hammer by having a hemispherical peen. Besides for peening (surface hardening by impact)...
- low-carbon iron, or more commonly a low-carbon steel object, in order to harden the surface. Iron which has a carbon content greater than ~0.02% is known...
- Work hardening, also known as strain hardening, is the process by which a material's load-bearing capacity (strength) increases during plastic (permanent)...
- on the smithy's anvil while the smith works it with a hammer. Sometimes, such as when hardening steel or cooling the work so that it may be handled with...
- small hammer blows — coming into focus as an alternative to rolling for increasing fatigue strength. In 1927, E.G. Herbert described the hardening effect...
- local heat treatment) is a technique used during heat treating of steel to harden or soften certain areas of an object, creating a difference in hardness...
- be repeated several times, as many metals harden and become brittle as they are deformed by the hammering. The plate must then be fixed on a suitable...
- from one piece of hardened steel, which renders them s****y and long-lasting. Alternatives such as tubular- and wooden-shafted hammers are more commonly...
- cannot be hardened by heat-treatment, they can only be hardened by cold working. To accomplish this, a piece of bronze is lightly hammered for a long...