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IMSE 250 EXAM 2 - Assignments Review (1)
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IMSE 250 EXAM 2 - Assignments Review (1)
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IMSE 250 EXAM 2 - Assignments ReviewSuppose a cylindrical part is turned by one pass. The diameter is reduced from 60 mm to 58
mm. What is the DOC? - ANS-1 mm
A cylindrical part with diameter 50 mm is rotating at 600 revolutions per minute (rpm). What is
the surface speed? - ANS-~94 m/min (meters per minute)
In orthogonal cutting, the cutting edge of the tool is _______ to the direction of the relative
velocity between the tool and the workpiece. - ANS-Perpendicular
Assume the uncut chip thickness is 0.2 mm and the chip thickness is 0.25 mm. The rake angle
of the tool is 20 degrees. What is the shear angle?
20 degrees
1 degree
46 degrees - ANS-46 degrees
Ductile materials tend to result in what type of chips? - ANS-Continuous
BUE (built-up edge) is undesirable for ________ cutting but sometimes is desirable for ______
cutting - ANS-Finish
Rough
Generally speaking, what happens to the power requirement when the speed, feed, or depth of
cut is increased? - ANS-It increases
Generally speaking, what happens to the cutting temperature when speed is increased? -
ANS-It increases
Generally speaking, what happens to the toughness as the hardness of a cutting tool material
increases? - ANS-It decreases
Generally speaking, what happens to tool wear when the cutting temperature increases? -
ANS-It decreases
Carbide tool coating can be achieved through either chemical vapor deposition (CVD) or
physical vapor deposition (PVD). Which one is conducted at a higher temperature? - ANS-CVD
Which one of the following is NOT a multipoint cutting tool?
A milling cutter
A twist drill bit
A reamer
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