Exam (elaborations)
IMSE 250 Exam 2 Graded A+ 2024
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IMSE 250 Exam 2 Graded A+ 2024
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IMSE 250 Exam 2 Graded A+ 2024____ occurs on the tool face that interacts with the newly-generated surface of
workpiece - ANSWER-Flank wear
Abrasive machining is a mixture of _______. - ANSWER-cutting, plowing, and rubbing
Abrasive particle size and bond type affect the grinding wheel performance. Which of
the following is NOT true? - ANSWER-Metal bond is usually used in aluminum oxide
grinding wheels.
According to the definition given by ASTM, why CNC turning is not considered as an
additive manufacturing process? - ANSWER-Not in a layer-by-layer additive fashion
After a cetrain time of service, grinding wheels need to be "turned up" by truing and/or
dressing, which is the operation to remove lodged metal chips and releasae more sharp
abrasive particles? - ANSWER-Dressing
After the hole is drilled using a twist drill first, there can be some misalignment due to
the "walk" of the drill tip, can the boring operation on a lathe help to correct/reduce this
misalignment? - ANSWER-Yes, it can.
Can the problem be solved or improved by heat treatment of the baring bar (so the steel
will have higher yield strength)? - ANSWER-No
Casting, forging, and rolling are material processing methods mainly used at the stage
of ___ manufacturing - ANSWER-Primary
Electrical discharge machining has several benefits. Which one of the following is NOT
among these benefits? - ANSWER-No heat affected zone.
For a given uncut chip thickness and rake angle, a larger shear angle means a ______
cutting force. - ANSWER-lower
For a standard twist drill, the cutting speed along the main cutting edges is ____ -
ANSWER-different at different points
For either slab or face milling, surfaces can be generated by two parent methods: up
milling and down milling. Case A or B in the right figure illustrates up milling? -
ANSWER-A- opposite directions
For the same situation as above, the effective clearance angle will be ___ than that
when the tool tip is set at the same height as the rotation axis of workpiece. - ANSWER-
smaller
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