Mechanical Engineering :: Production Engineering
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The surface finish is improved by the increase in
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The cutting speed for drilling copper with high speed steel drills varies from
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High speed steel tools retain their hardness upto a temperature of
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A taper tap has
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For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of
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Which of the following statement is wrong?
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Climb milling is chosen while machining because
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The material which on machining produces chips with built up edge is
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In down milling, the thickness of chip is
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A.
The diamond is the hardest tool material and can run at cutting speeds about 50 times that of high speed steel tool.
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B.
The ceramic tools can be used at cutting speeds 40 times that of high speed steel tools.
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C.
The cemented carbide tools can be used at cutting speeds 10 times that of high speed steel tools.
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D.
The ceramic tools can withstand temperature upto 600°C only.
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