#### Formula for Face Milling MITSUBISHI …

Check the item you want to calculate input values in the two boxes and then press the Calculate button DC mm n min 1 vc m/min （Problem） What is the cutting speed when main axis spindle speed is 350min 1 and the cutter diameter is ø125 （Answer） Substitute π= DC=125 n=350 into the formula vc= π•DC•n ÷1000= ×125×350 ÷1000 =/min The cutting speed is 137