A Tool 1-Ball end mill 1/8" 2-tooth is to be used to mill in bronze. The Cutting Speed is 150 ft/min, Feed is 0.005 in/rev, and Specific Energy of 1.2 hp-min/inÂł. What is the approximate spindle RPM? a. 4,800 b. 4,000 c. 2,000 d. 2,400
Added by Juan H.
Step 1
We know the Cutting Speed is 150 ft/min and the diameter of the tool is 1/8" (0.125 inches). So, we can rearrange the formula to solve for RPM: RPM = (CS x 12) / (π x Diameter) RPM = (150 x 12) / (π x 0.125) RPM = 4,545.45 Show more…
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