Thus, you get a hard, dry outside, and moist inside, even after drying for an appropriate amount of time. As the cooling rate even in the centre exceeds the critical cooling rate, the part is completely hardened up to centre. Case hardening is a heat treatment technique in which the steel surface is processed by the addition of carbon. However, a wide variety of rock coatings can act as case-hardening agents. Case hardening produces a hard, wear-resistant surface, or case, over a strong, tough core. case-hardening definition: Verb case hardening 1. Share this: Click to share on Twitter (Opens in new window) Click to share on Facebook (Opens in new window) Click to share on LinkedIn (Opens in new window) Related. Meaning of case-hardening. This process is adopted, as many of the applications like gears, cams, and crankshafts desire high hardness on the outer surface and softer core, which is tough enough to withstand the shocks. case hardening. Through Hardening Steels: Fig. Definitions Related words. Case hardened timber will cup on re-sawing causing problems for the processor.If noticed, case hardening can be rectified by steaming in the kiln: the humidity of the air in the kiln is greatly increased so that the surface regions … Diffusion methods introduce alloying elements that enter the surface by diffusion, either as solid-solution agents or as hardenability agents that assist martensite formation during subsequent quenching. Some case-hardening processes are carburizing, cyaniding, carbonitriding, carbo-nitriding, nitriding, flame hardening, and induction hardening. 27 synonyms and near synonyms of case-hardening from the Merriam-Webster Thesaurus, plus 10 antonyms and near antonyms. The hardened layer is called the case. Case hardening is a simple method of hardening steel. MIND series) and be part of the cycle. This paper explains why case hardening is benefi-cial; the risks involved and compares the methods for calculat-ing and specifying case depth per the ISO 6336-5 and ANSI/ AGMA 2101-D04 gear rating standards, and guidelines pre- sented in the MAAG Gear Handbook. Many old guns have faded color case hardening. Some of the classic shotgun with case harden were. As mentioned above, case hardening is done in batches. The people in ancient western civilization has invented this heat-treating process. case hardening translation in English - French Reverso dictionary, see also 'case history',case study',attaché case',basket case', examples, definition, conjugation * The glass is heated nearly to its softening point, then cooled rapidly with a blast of cold air which causes the surface to harden before the interior. In case hardening, a low-carbon steel (case hardening steel) with a maximum of 0.2 % carbon is first exposed to a carbon-containing environment. Case hardening is the result of produce that has been dehydrated at too high of a heat, causing the outer portion of the fruit or vegetable to become hard, making it hard for moisture to escape the piece. Jump to: General, Art, Business, Computing, Medicine, Miscellaneous, Religion, Science, Slang, Sports, Tech, Phrases We found 12 dictionaries with English definitions that include the word case hardening: Click on the first link on a line below to go directly to a page where "case hardening" is defined. Case Hardening: A process in which a ferrous alloy is hardened so that the surface layer or case is made considerably harder than the interior or core. Terms and Definitions. Case hardening isn't "necessary" only if you take it to mean only pack hardening in charcoal and exclude other methods of getting the same results. Example sentences with "case hardening steel", translation memory. Brought to you by the Machine Tech Video Blog!In this video, Adam and Todd show you how to case harden low carbon steel. The combination of a hard surface and a soft interior is greatly valued in modern engineering because it can withstand very high stress and fatigue, a property that is required in such items as gears and anti-friction bearings. Definition Case hardening is the process through which metal surface is strengthened by covering the surface of the workpiece by the layer of another harder material and this layer is more durable. Definition of case-hardening in the Definitions.net dictionary. Find another word for case-hardening. Case hardening in detail. Surface hardening, treatment of steel by heat or mechanical means to increase the hardness of the outer surface while the core remains relatively soft. What does case hardening mean? Case hardening (or) Surface hardening is a process of heating the metal over its surface so as to harden it. 6.7 illustrates cooling of surface and centre of a cylinder superimposed on CCT curve of Steel (0.77% C). Case Hardening; Request a Term ; Case Hardening: A process in which the surface of a metal is changed chemically by introducing a high carbide or nitride content. Posted in Quality and tagged corrosion, metallurgy. Meaning of case hardening. (metallurgy) The process of imparting greater hardness to the surface of a piece of metal.Noun 3. History Behind it? This results in unrelieved stress.Case hardened wood may warp considerably and potentially dangerously when the stress is released by sawing.. See also Case hardening steel, method for producing same, and mechanical structural part using case hardening steel. 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