Machine Design a Manual of Practical Instruction in Designing Machinery for Spe
Machine Design a Manual of Practical Instruction in Designing Machinery for Spe
Ernest L Wallace
The book Machine Design a Manual of Practical Instruction in Designing Machinery for Spe was written by author Ernest L Wallace Here you can read free online of Machine Design a Manual of Practical Instruction in Designing Machinery for Spe book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Machine Design a Manual of Practical Instruction in Designing Machinery for Spe a good or bad book?
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At present vanadium steel is extensively used for automobiles. With but a general knowledge of the elastic limit, ordinary steel is good for from 12, 000 to 15, 000 pounds per square inch non- reversing stress, and 8, 000 to 10, 000 reversing stress. Copper. Copper is a reddish metal of great ductility and mal- leability. It is usually rolled or hammered into shape because it 44 MACHINE DESIGN does not cast well. Copper can be welded, but as it requires con- siderable care to make a good joint,... pieces are more often joined by brazing. It can be drawn into wire. The tensile strength of cast copper is about 20, 000 pounds per square inch; of forged copper about 30, 000 pounds per square inch. Hammering, rolling, and wire-drawing increases the tensile strength, but makes it hard and brittle. It can be made soft and tough by annealing. It is expensive and is used for wire, fittings, and tubing. Its strength is less than that of wrought iron and de- creases rapidly with rise of temperature.
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