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Explain the Bar and Rod Drawing - cold drawing processes
In case of bar drawing, hot drawn bars are at first pickled, washed and coated to prevent oxidation. Once it's done a draw bench is used for process of cold drawing. To make an end possible to enter a drawing die diameter of the rod is reduced by swaging operation. This end is fastened by chains to the draw bench and end is gripped by the jaws of the carriage. In this approach a high surface finish and accuracy dimensionally is obtained. Products of this process can be used directly without any further machining.
Due Diligent: There are many literatures on sand blasting and manufacturing processes. Historically, sand blasting had been used for many tasks before. It was pretty famous
(a) What are fluids? How are they classified? (b) Classify the several kinds of manometers. (c) Define the following (d) Define metacenter (1) Steady flow (2) Unsteady
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Backup Purge Backup purge gas can also be used to protect the under side of the weld and its adjacent base metal surfaces from oxidation on the time of welding . Uniformity
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DIFFUSION BONDING In this process, union between specially prepared mating surfaces takes place as a result of diffusion, which occurs due to high temperature & pressure, exer
Stainless Steels Such are particularly termed for their resistance to corrosion. This resistance is acquired due to formation of protective oxide layer that spreads all over
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Force required to start the roller: A roller shown in the figure given below is of mass 150Kg. What force T is required to start the roller over block A ? Sol.: Let
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