Note: All dimensions are in mm A 34 mm diameter x 120 mm shafting will be turned using a lathe to produce a step shafting as shown in the figure. Calculate the required (minimum) total machining time Tm with the following cutting 30 70 *- 50-> 120 conditions: Step Shafting Rough Turn: V = 30 m/min; Max. Depth of Cut = 1.5 mm; Feed = 0.2 mm/rev Finish Turn: V = 60 m/min; Max. Depth of Cut = 0.5 mm; Feed = 0.05 mm/rev Lathe available rpm: 150, 200, 250, 350, 400, 450, 500, 550, 600, 650, 700

Note: All dimensions are in mm A 34 mm diameter x 120 mm shafting will be turned using a lathe to produce a step shafting as shown in the figure. Calculate the required (minimum) total machining time Tm with the following cutting 30 70 *- 50-> 120 conditions: Step Shafting Rough Turn: V = 30 m/min; Max. Depth of Cut = 1.5 mm; Feed = 0.2 mm/rev Finish Turn: V = 60 m/min; Max. Depth of Cut = 0.5 mm; Feed = 0.05 mm/rev Lathe available rpm: 150, 200, 250, 350, 400, 450, 500, 550, 600, 650, 700

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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