Sample Problem 1 A man create a 5 inches thick hole with a 2" diameter on an aluminum flat bar. Using a feed rate of 0.001 in/ rev with a drill spindle speed of 100 rpm. Calculate the following: a) Drill penetration speed in (in/min) b) Drilling time (min) c) Material Removal Rate (in? /min).

Sample Problem 1 A man create a 5 inches thick hole with a 2" diameter on an aluminum flat bar. Using a feed rate of 0.001 in/ rev with a drill spindle speed of 100 rpm. Calculate the following: a) Drill penetration speed in (in/min) b) Drilling time (min) c) Material Removal Rate (in? /min).

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter5: Turning

Section5.3: Machining Operations On The Lathe

Problem 5RQ: Calculate spindle RPM and machining time for cutting a 1.5" diameter 4" long at 225 SFPM using a...

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Sample Problem 1
A man create a 5 inches thick hole with a 2" diameter on an
aluminum flat bar. Using a feed rate of 0.001 in/ rev with a
drill spindle speed of 100 rpm. Calculate the following:
a) Drill penetration speed in (in/min)
b) Drilling time (min)
c) Material Removal Rate (in? /min).

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