GATE ME 2014 Set 4 — Question 64
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Manufacturing Processes → Machining & Machine Tools → Conventional Machine Tools
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Question
A cast iron block of length is being shaped in a shaping machine with a depth of cut of , feed of and the tool principal cutting edge angle of . Number of cutting strokes per minute is . Using specific energy for cutting as , the average power consumption (in watt) is _______
Correct answer
295 to 305
Solution
The average power consumption is calculated using the specific energy and the material removal rate (MRR).Step 1: Calculate the Material Removal Rate (MRR).
In a shaping operation, the volume of material removed in one stroke is:
Given the number of cutting strokes per minute :
Step 2: Calculate the average power.
The average power consumption is .
In a shaping operation, the volume of material removed in one stroke is:
Given the number of cutting strokes per minute :
Step 2: Calculate the average power.
The average power consumption is .
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