Thursday, 5 January 2017

Few Important Questions on Milling:

Q1 Climb milling is chosen while machining because
(a) The chip thickness increases gradually 
(b) It enables the cutter to dig in and depth of cut
(c) The specific power consumption is reduced 
(d) Better surface finish can be obtained


Q2 The cutting speed of a milling cutter while cutting brass is:
(a) 45 to 60 m/min       (b) 30 to 40 m/min
(c) 25 to 35 m/min        (d) 15 to 20 m/min


Q3- Which one of the following operations is carried out at the minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?
(a) Turning
(b) Grinding
(c) Boring
(d) Milling


Q4- The arbor of a milling machine is used to hold which one of the following?
(a) Spindle                 (b) Over-arm
(c) Cutting tool           (d) Mandrel


Q5- In milling machine, the cutting tool is held in position by
(a) Chuck                   (b) Spindle
(c) Arbor                     (d) Tool holder


Q6- For machining, which one of the following gang milling operations is employed?
(a) Threads
(b) Bores
(c) Grooves
(d) Steps on prismatic parts


Q7- Gang milling is a
(a) Milling process for generating hexagonal surfaces
(b) Process of cutting gears
(c) Process in which two or more cutters are used simultaneously
(d) Milling operation combined with turning


Q8- In a milling operation two side milling cutters are mounted with a desired distance between them so that both sides of a work piece can be milled simultaneously. This set up is called.
(a) Gang milling                   (b) Straddle milling
(c) String milling                   (d) Side milling.


Q9- What is the process of removing metal by a milling cutter which is rotated against the direction of travel of the work piece, called?
(a) Down milling  (b) Up milling
(c) End milling     (d) Face milling

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