GATE ME 2018 Set 2 — Question 62
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Manufacturing Processes → Machining & Machine Tools → Non-Traditional Machining
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Question
A circular hole of mm diameter and depth of mm is machined by EDM process. The material removal rate (in ) is expressed aswhere A and the melting point of the material, . The time (in minutes) for machining this hole is ________ (correct to two decimal places)
Correct answer
7 to 7.3
Solution
1.Calculate the volume of the hole ():
The hole is cylindrical with diameter mm and depth mm.2.Calculate the Material Removal Rate (MRR):
Given formula: Substitute A and :
3.Calculate the machining time ():
The value falls within the range 7.00 to 7.30.Continue learning with Success Tracker
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