Machining formulas and definitions

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In metal cutting, calculating the correct values for the different machining parameters such as cutting speed and spindle speed is a crucial factor for achieving the best result from the cutting tools. In this section you find a compilation of the most relevant machining formulas and definitions for the machining areas:

• General turning
• Parting and grooving
• Threading
• Milling
• Drilling
• Boring

You find machining terminology definitions as well as metal cutting formulas for how to calculate both metric and imperial values and machining definitions for commonly used parameters and terms, supported by explanatory images. There are also specific calculation examples such as how to calculate tool life in drilling or how to calculate infeed in thread turning.

Cutting tool parameters

All cutting tools are defined by a number of different parameters defined according to the ISO 13399 standard. You find the whole list of parameters and their meaning here.