![]() ![]() Understanding the right speeds and feeds for your tool and operation before you start machining is critical feed Rate = RPM * IPT * Z RPM: rotations per minute, the revolution speed of spindle chip load(IPT): inch per minute, the amount of material removed per revolution per flute number of teeth (Z): the number of flutes The chip load depends on the characteristics of the tool and of the workpiece material. South Georgia & South Sandwich Islands ($)īefore using a cutting tool, it is necessary to understand tool cutting speeds and feed rates, more often referred to as “speeds and feeds.” Speeds and feeds are the cutting variables used in every operation and vary for each tool based on cutter diameter, operation, material, etc.
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