GATE ME 2014 Set 4 — Question 33

MCQ+1 / -0.33MediumMerchant's Circle & ForcesMachining & Machine ToolsManufacturing ProcessesTool Geometry, Materials & Wear

Manufacturing Processes → Machining & Machine Tools → Merchant's Circle & Forces

Last updated 5 September 2026

Question

Better surface finish is obtained with a large rake angle because

Correct answer (A) the area of shear plane decreases resulting in the decrease in shear force and cutting force Solution Increasing the rake angle reduces the shear plane area, which in turn reduces the cutting forces and power consumption. Lower cutting forces generally lead to reduced tool vibration and better surface finish on the workpiece. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) the area of shear plane decreases resulting in the decrease in shear force and cutting force Solution Increasing the rake angle reduces the shear plane area, which in turn reduces the cutting forces and power consumption. Lower cutting forces generally lead to reduced tool vibration and better surface finish on the workpiece.

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