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Face milling speed and feed

Material Cutting Speed (SFM) Feed per Tooth (IPT)
Aluminum
600-2000
0.003-0.020
Brass
200-800
0.003-0.012
Stainless Steel (300 series)
175-350
0.002-0.006
Cast Iron (gray)
100-325
0.008-0.020
Cast Iron (ductile)
75-250
0.008-0.020
Low Carbon Steel
100-300
0.010-0.020
High Carbon Steel
75-200
0.008-0.012

These values are provided as a general guideline and may vary depending on the specific face milling insert being used, the machine being used, and the conditions of the workpiece material. It’s important to adjust the cutting speed and feed rate based on the specific job to optimize performance and tool life.

Speed and feed data for face milling inserts can vary depending on the specific type of insert, grade of insert, the machine being used, and the workpiece material being milled. Here are some factors to consider when determining the ideal speed and feed rates for face milling:

  • Type of insert: Different inserts are designed for different material types and applications. Some are designed for higher speeds and feeds, while others are designed for slower, more consistent cuts.

  • Grade of insert: Each grade of insert has different properties that can affect cutting speed and efficiency. Harder grades may be able to withstand faster cutting speeds, while softer grades may perform better at slower speeds.

  • Machine being used: The type of machine being used can affect the optimal speed and feed rates for face milling. CNC machines and dedicated milling machines may offer higher cutting speeds and feeds than manual machines.

  • Workpiece material: Different materials have different properties that can affect the optimal cutting speed and feed rate. Harder materials, for example, may require slower feeds and higher cutting speeds to ensure a clean cut.

To determine the optimal speed and feed rates for your specific face milling application, it’s best to consult the manufacturer’s recommendations or work with experienced machinists who can provide guidance based on their experience with similar materials and applications. It’s important to adjust the speed and feed rates based on the specific job to optimize performance and tool life, and to constantly monitor the process to ensure safety and efficiency.

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