Chart is recommending how far your cutter should travel per minute in feet. Every cutter has a diameter 2.

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### Multiply the sfm by 4 and then divide the result by d.

**Surface feet per minute chart**. Surface feet per minute enter dia. Inches per minute ipm revolutions per minute. Distance cutter travels every revolution x 12 distance traveled in feetsf 4.

The speeds shown are given in surface feet per minute sfm or surface meters per minute mmin measured at the periphery of thedrillto calculate thedrill revolutions per minute rpm from the surface speeds the following formulae should be used where ddiameter of drill. Resulting surface feet per minute. Speeds and feeds calculator inch formulas sfm surface feet per minute surface feet per minute.

Turning formula calculator for sfm rpm inches per rev inches per minute and metal removal rates turning formula interactive calculator solve for any subject variable in bold by entering values in the boxes on the left side of the equation and clicking the calculate button. Home resources engineering calculators miscellaneous speed and feed. Sfm m per min.

Surface feet per minute sfm to revolutions per minute rpm conversion chart. Rpm ipt x fl. Surface feet per minute sfm tool diameter.

Tool diameter ipm inches per minute inches per minute. Sfm x 382 dia. Assume that the chart able tells us that the material sfm constant is 200 and we want to know the rpm.

The scs sfm is the cutting speed in feet per minute 4 is a constant and d is the diameter of the cutter. Lets take an example. Surface footage theory behind surface feet per minute.

Surface footage chart and formula. Rpm 382 x dia. Diameter x 314159 pi distance cutter travels every revolution 3.

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Technical Resources Keo Cutters

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