Question

Determine machine speed (RPM) and feed (F) for a 4" diameter HSS side milling cutter with 16 teeth (T) milling free cutting steel. Recommended cutting speed is 200 FPM. Feed per tooth (FTR) is 0.005".

A) [RPM: 1000, F: 0.080"]
B) [RPM: 500, F: 0.040"]
C) [RPM: 2000, F: 0.020"]
D) [RPM: 1500, F: 0.030"]

Answer 1

The machine speed (RPM) and feed (F) for a 4" diameter HSS side milling cutter can be calculated using formulas involving cutting speed, number of teeth, and feed per tooth. Plugging in the given values, the correct answer is A) [RPM: 1000, F: 0.080"].

Step-by-step explanation:

To determine machine speed (RPM) and feed (F) for a 4" diameter HSS side milling cutter with 16 teeth milling free cutting steel, we can use the following formulas:

RPM = (Cutting Speed × 12) / (π × Tool Diameter)

F = (Feed per Tooth × Number of Teeth × RPM) / (12 × Cutting Speed)

Plugging in the given values, we get:

RPM = (200 FPM × 12) / (π × 4") = approximately 318.30 RPM

F = (0.005" × 16 × 318.30 RPM) / (12 × 200 FPM) = approximately 0.080"

Therefore, the correct answer is A) [RPM: 1000, F: 0.080"].