Project ForgeManufacturing Engineering
Machining Processes
GATE 2017
Medium
A block of length 200 mm is machined by a slab milling cutter 34 mm in diameter. The depth of cut and table feed are set at 2 mm and 18 mm/minute, respectively. Considering the approach and the over travel of the cutter to be same, the minimum estimated machining time per pass is __________ minutes.
12 minutes(± 0.05 accepted)
Explanation
Approach/over-travel distance = √(d(D-d)) = √(2×32) = √64 = 8 mm each. Total travel = L + 2×8 = 200+16 = 216 mm. Time = 216/18 = 12 minutes.
Source: GATE ME 2017 Session 1 (ME-1) (2017)
This question is part of a 15-day revision cycle — sign in and Project Forge will bring it back the day before you'd forget it.