Project ForgeManufacturing Engineering
Machining Processes
GATE 2016
Medium
In an orthogonal cutting process, the tool has a rake angle of zero degrees. The measured cutting force and thrust force are 500 N and 250 N respectively. The coefficient of friction between the tool and chip is __________.
0.5(± 0.02 accepted)
Explanation
For a zero rake angle, the coefficient of friction on the tool-chip interface simplifies to μ = Ft/Fc = 250/500 = 0.5.
Source: GATE ME 2016 Set-1 (2016)
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