Mechanical Engineering :: Production Engineering
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The effect of setting a boring tool above centre height leads to
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Which of the following statement is correct about nose radius?
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The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
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In a centre lathe, the cutting tool is fed in __________ with reference to the lathe axis.
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The angle between the face of the tool and a line tangent to the machined surface at the cutting point is called cutting angle.
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The dressing and truing of grinding wheel are done with the same tools but not for the same purpose.
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Tumbler gears in lathe are used to
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A.
increase in the effective rake angle and a decrease in the effective clearance angle
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B.
increase in both effective rake angle and effective clearance angle
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C.
decrease in the effective rake angle and an increase in the effective clearance angle
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D.
decrease in both effective rake angle and effective clearance angle
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