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Steel MakingHeat Treatment Of Milling Cutters Drills Reamers EtcTHE FIRE.--Gas and electric furnaces designed for high heats ... Liberty Motor Connecting Rods The requirements for materials for the Liberty motor connecti... Quenching It is considered good practice to quench alloy steels from th... Introduction Of Carbon The matter to which these notes are primarily directed is the... Restoring Overheated Steel The effect of heat treatment on overheated steel is shown gra... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer For extremely high temperature, the optical pyrometer is lar... Annealing Alloy Steel The term alloy steel, from the steel maker's point of view, r... Complete Calibration Of Pyrometers For the complete calibration of a thermo-couple of unknown e... Typical Oil-fired Furnaces Several types of standard oil-fired furnaces are shown herew... Fatigue Tests It has been known for fifty years that a beam or rod would fa... Heat Treatment Of Steel Heat treatment consists in heating and cooling metal at defin... Connecting Rods The material used for all connecting rods on the Liberty engi... Hardening Operation Hardening a gear is accomplished as follows: The gear is tak... S A E Heat Treatments The Society of Automotive Engineers have adopted certain heat... Lathe And Planer Tools FORGING.--Gently warm the steel to remove any chill, is parti... Heat Treatment Of Axles Parts of this general type should be heat-treated to show the... William Kelly's Air-boiling Process An account of Bessemer's address to the British Association w... Open Hearth Process The open hearth furnace consists of a big brick room with a l... Chromium Chromium when alloyed with steel, has the characteristic func... |
High Speed SteelCategory: HIGH-SPEED STEEL For centuries the secret art of making tool steel was handed down from father to son. The manufacture of tool steel is still an art which, by the aid of science, has lost much of its secrecy; yet tool steel is today made by practical men skilled as melters, hammer-men, and rollers, each knowing his art. These practical men willingly accept guidance from the chemist and metallurgists. A knowledge of conditions existing today in the manufacture of high-speed steel is essential to steel treaters. It is well for the manufacturer to have steel treaters understand some of his troubles and difficulties, so that they will better comprehend the necessity of certain trade customs and practices, and, realizing the manufacturer's desire to cooperate with them, will reciprocate. The manufacturer of high-speed steel knows and appreciates the troubles and difficulties that may sometimes arise in the heat-treating of his product. His aim is to make a uniform steel that will best meet the requirements of the average machine shop on general work, and at the same time allow the widest variation in heat treatment to give desired results. High speed steel is one of the most complex alloys known. A representative steel contains approximately 24 per cent of alloying metals, namely, tungsten, chromium, vanadium, silicon, manganese, and in addition there is often found cobalt, molybdenum, uranium, nickel, tin, copper and arsenic. Next: Standard Analysis Previous: Tempering Colors On Carbon Steels
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