Mechanical Engineering :: Workshop Technology
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To prevent the body of the blade from jamming in the saw cut, the teeth of blade are
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A ring gauge is used to
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A casting defect which results in general enlargement of a casting is known as
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Rotary swaging
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The operation of cutting a number of holes evenly spaced in a regular pattern on a sheet of metal is. called perforating.
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The metal is subjected to mechanical working for
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During hot working of metals
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The electron beam welding can be carried out in
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A.
is extensively used for making bolts and rivets
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B.
is used for reducing the diameters of round bars and tubes by rotating dies which open and close rapidly on the work
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C.
is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
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D.
consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
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