18.are used for clamping irregularly shaped workpieces.A. Three-jaw chucksC. MandrelsB. Face platesD. Follow rests19. In bending operation of a piece of flat metal sheet. The final bendangle after springback isthan the angle to which the part wasbent.A. largerB. smallerC. not sure20. Machining is a general term describing a group of processes thatconsist of theof material and modification of the surfaces of aworkpiece after it has been produced by various methods.A. additionB. deformationC. changing D. removal

given :irregular shaped workpiece clamping devices

Answered: - Three-jaw chuck -Mandrels

Engineering

Mechanical Engineering

- Three-jaw chuck -Mandrels

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter6: Milling

Section6.1: Introduction To The Vertical Milling Machine

Problem 1RQ: What part of the vertical milling machine allows workpieces to be raised and lowered?

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Question

18.
are used for clamping irregularly shaped workpieces.
A. Three-jaw chucks
C. Mandrels
B. Face plates
D. Follow rests
19. In bending operation of a piece of flat metal sheet. The final bend
angle after springback is
than the angle to which the part was
bent.
A. larger
B. smaller
C. not sure
20. Machining is a general term describing a group of processes that
consist of the
of material and modification of the surfaces of a
workpiece after it has been produced by various methods.
A. addition
B. deformation
C. changing D. removal

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