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SSC-JE ME || Manufacturing 3

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Question 1

What is the shear plane angle (ϕ) if rake angle (α) is 30° for minimum amount of chip shear strain is

Question 2

Flank wear occurs mainly on which of the following:

Question 3

If the cutting speed is reduced to 1/3^rd time, then the tool life is increased by -- % (n = 1, C = 200)

Question 4

Which of the following values of index n is associated with carbide tools when Taylor’s tool life equation V.Tⁿ = constant is applied?

Question 5

In relation $Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-3_files\image023.png$ the value of $Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-3_files\image024.png$ for ceramic tools

Question 6

Tool life increases with an increase in____.

Question 7

An orthogonal cutting operation is being carried out under the following conditions Cutting speed (V)=2m/s, depth of cut=0.5 mm, chip thickness=0.6 mm

Then chip velocity is:

Question 8

In a turning tool, crater wear occurs on _______.

Question 9

If the taylor’s tool life exponent ‘n’ is 0.4 and the tool changing time is 2 min. The tool life (in seconds) for maximum production rate is

Question 10

Tool life is affected mainly with

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AE & JE Exams Mechanical Engineering

Sep 3AE & JE Exams