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Exam_2_withSolutions

# Exam_2_withSolutions - Manufacturing Process Engineering...

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4. If the cutting conditions in a turning operation are cutting speed = 250 ft/min, feed = 0.015 in/rev and depth of cut = 0.12 inch, which of the following is the material removal rate: a) 0.45 in 3 /min, b) 5.4 in 3 /min, c) 0.0375 in 3 /min, d) 4.5 in 3 /min? Answer: ___b_______________ 5. The tool geometry of a single point cutting tool is very important for the surface finish, cutting forces and the amount of heat generated. Which of the following statements are correct: a) if the rake angle is negative then the relief angle has to be negative as well, b) by increasing the positive rake angle the shear plane angle will increase as well and more cutting force will be required c) a negative rake angle will increase the heat generated compared to a positive rake angle, d) a negative relief angle will reduce the surface quality and reduce the require cutting force e) by decreasing the shear plane angle the required cutting force will increase and usually decrease the surface finish, f) both the depth of cut and the rake angle will affect the thickness of the chip. Answer:__c,e,f______________
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Exam_2_withSolutions - Manufacturing Process Engineering...

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