| An out-of-towner accidentally drives his car into a deep ditch on the side of a country road. Luckily a farmer happened by with his big old horse named Benny. The man asked for help. The farmer said Benny could pull his car out. So he backed Benn... Read more of Horse power at Free Jokes.ca |  InformationalPrivacy |
Steel MakingAnnealing MethodForgings which are too hard to machine are put in pots with ... Steel For Chisels And Punches The highest grades of carbon or tempering steels are to be re... Making Steel Balls Steel balls are made from rods or coils according to size, st... High Speed Steel For centuries the secret art of making tool steel was handed ... Crankshaft The crankshaft was the most highly stressed part of the entir... Nickel Nickel may be considered as the toughest among the non-rare a... Double Annealing Water annealing consists in heating the piece, allowing it to... William Kelly's Air-boiling Process An account of Bessemer's address to the British Association w... The Effect The heating at 1,600 deg.F. gives the first heat treatment w... Carbon In Tool Steel Carbon tool steel, or tool steel as it is commonly called, us... The Effect Of Tempering On Water-quenched Gages The following information has been supplied by Automatic and ... Hardening High-speed Steel In forging use coke for fuel in the forge. Heat steel slowly ... The Forging Of Steel So much depends upon the forging of steel that this operation... Heat Treatment Of Milling Cutters Drills Reamers Etc THE FIRE.--Gas and electric furnaces designed for high heats ... Rate Of Cooling At the option of the manufacturer, the above treatment of gea... Composition And Properties Of Steel It is a remarkable fact that one can look through a dozen tex... Sulphur Sulphur is another impurity and high sulphur is even a greate... Non-shrinking Oil-hardening Steels Certain steels have a very low rate of expansion and contract... Heavy Forging Practice In heavy forging practice where the metal is being worked at... Plant For Forging Rifle Barrels The forging of rifle barrels in large quantities and heat-tre... |
GearsCategory: APPLICATION OF LIBERTY ENGINE MATERIALS TO THE AUTOMOTIVE INDUSTRY The material used for all gears on the Liberty engine was selected at the option of the manufacturer from the following standard S. A. E. steels, the composition of which are given in Table 12, TABLE 12.--COMPOSITION OF STEELS NOS. X-3,340 AND 6,140 Steel No X-3,340 6,140 Carbon, minimum 0.350 0.350 Carbon, maximum 0.450 0.450 Manganese, minimum 0.450 0.500 Manganese, maximum 0.750 0.800 Phosphorus, maximum 0.040 0.040 Sulphur, maximum 0.045 0.045 Nickel, minimum 2.750 Nickel, maximum 3.250 Chromium, minimum 0.700 0.800 Chromium, maximum 0.950 1.100 Vanadium, minimum 0.150 All gears were heat-treated to a scleroscope hardness of from 55 to 55. The heat treatment used to secure this hardness consisted in quenching the forgings from a temperature of 1,550 to 1,600 deg.F. in oil and annealing for good machineability at a temperature of from 1,300 to 1,350 deg.F. Forgings treated in this manner showed a Brinell hardness of from 177 to 217. Next: Rate Of Cooling Previous: Highly Stressed Parts
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