Problem 2. Turning Consider Step 2 (Turn Shoulder) in machining the flashlight handle (Figure 2). STEP 1: CUT TO LENGTH STEP 2: TURN SHOULDER 1.0 0s00 2.000 Figure 2. Turning step for Problem 2. i) Calculate the (1) cutting time (in s), (2) the material removal rate (in in3 /s or mm3 /s) for this cut, assuming you remove all of the material with one pass (i.e., depth of cut d = (1"-0.6")/2 = 0.2"), and (3) the power (hp or W) required for this turning operation: Consider the following scenarios: Feed (f) in/rev Rotational Speed (0) in RPM Cutting Time MRR Power 0.02 1000 ? ? ? 0.025 900 ? ? ? 0.03 800 ? ? ?

Problem 2. Turning Consider Step 2 (Turn Shoulder) in machining the flashlight handle (Figure 2). STEP 1: CUT TO LENGTH STEP 2: TURN SHOULDER 1.0 0s00 2.000 Figure 2. Turning step for Problem 2. i) Calculate the (1) cutting time (in s), (2) the material removal rate (in in3 /s or mm3 /s) for this cut, assuming you remove all of the material with one pass (i.e., depth of cut d = (1"-0.6")/2 = 0.2"), and (3) the power (hp or W) required for this turning operation: Consider the following scenarios: Feed (f) in/rev Rotational Speed (0) in RPM Cutting Time MRR Power 0.02 1000 ? ? ? 0.025 900 ? ? ? 0.03 800 ? ? ?

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

Chapter4: Drill Press

Section4.3: Drill Press Operations

Problem 2RQ: Briefly define the term cutting speed.

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