1

GATE PI 2013

MCQ (Single Correct Answer)

+2

-0.6

Details pertaining to an orthogonal metal cutting process are given below.

Chip thickness ratio $$0.4$$

Under formed thickness $$0.6mm$$

Rake angle $$ + {10^0}$$

Cutting speed $$2.5m/s$$

Mean thickness of primary shear zone $$25microns$$

The shear strain rate in $${s^{ - 1}}$$ during the process is

2

GATE PI 2013

MCQ (Single Correct Answer)

+2

-0.6

Following data refers to an automat and a center lathe, which are being compared to machine a batch of parts in a manufacturing shop

Automat will be economical if the batch size exceeds

3

GATE PI 2013

MCQ (Single Correct Answer)

+2

-0.6

In orthogonal turning of a bar of $$100$$ $$mm$$ diameter with a feed of $$0.25$$ $$min/rev,$$ depth of cut of $$4$$ $$mm$$ and cutting velocity of $$90$$ $$m/min,$$ it is observed that the main (tangential) cutting force is prependicular to the friction force acting at the chip-tool interface. The main (tangential) cutting force is $$1500$$ $$N.$$

The orthogonal rake angle of the cutting tool in degree is

4

GATE PI 2013

MCQ (Single Correct Answer)

+2

-0.6

In orthogonal turning of a bar of $$100$$ $$mm$$ diameter with a feed of $$0.25$$ $$min/rev,$$ depth of cut of $$4$$ $$mm$$ and cutting velocity of $$90$$ $$m/min,$$ it is observed that the main (tangential) cutting force is prependicular to the friction force acting at the chip-tool interface. The main (tangential) cutting force is $$1500$$ $$N.$$

The normal force acting at the chip-tool interface in $$N$$ is

Paper analysis

Total Questions

Casting

1

Heat Transfer

1

Machine Tools and Machining

9

Metal Forming

2

Metrology

1

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