Milling Speed and Feed Calc 1.1

Milling Speed and Feed Calculator is a machining tool that simplifies the process of determining spindle speed and feed rate for milling operations.

Milling operations involve removing material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill.

Features:

• Quick calculation
• Results can be easily copied to other applications
• Included formulas for reference
• Supports up to 16 decimal places
• Offers various units for each input

Whether it's milling, drilling, or creating a tool path for a CNC machine, determining the feed rate is crucial. Calculations are based on the cutter diameter, number of teeth, cutting speed, and cutting feed. Factors such as workpiece and tool material selection are vital for specific cutting conditions since materials have rated surface speeds depending on the type of cutter used. Generally, the harder the material, the slower the speed.

The feed rate indicates how quickly the cutter engages with the part and is typically measured in units per minute.

Spindle speed refers to the rotational frequency of the machine's spindle, expressed in revolutions per minute (RPM). The ideal speed is calculated by working backwards from the desired surface speed (SFM or m/min), taking into account the diameter of the workpiece or cutter.

Formulas:

• RPM = (12 * SFM) / (PI * CD)
• RPM = 3.82 * SFM / CD
• IPR = Ft x NT
• IPM = Ft x NT x RPM
• IPM = IPR x RPM

Key Terminology:

• RPM: Spindle Speed
• Ft: Feed/Tooth, Chip Load/Tooth
• SFM: Surface Speed
• IPM: Feed Rate
• CD: Cutter Diameter
• NT: Cutter Number of Teeth
• IPR: Cutting Feed

We thank you for your support and encourage you to explore more applications for your iOS devices at nitrio.com.