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Asked: May 7, 20252025-05-07T18:04:25+00:00 2025-05-07T18:04:25+00:00In: Feeds & Speeds Calculations

Feeds & Speeds Calculator Guide: How to Nail Cutting Parameters Every Time

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Optimal cutting parameters are a science:

  1. Key Concepts: Surface footage (SFM), chip load (IPT/MMT), depth of cut, width of cut.

  2. Calculation Formulas: RPM = (12 × SFM)/(π × D), Feed rate = RPM × # of flutes × chip load.

  3. Material‑Specific Values: Aluminum, mild steel, stainless steel, plastics, composites—recommended ranges.

  4. Tooling Factors: Flute count, helix angle, coating—how they affect chip evacuation and heat buildup.

  5. Live Testing: How to adjust feeds & speeds on the fly based on sound, finish quality, and power draw.

Master these calculations to eliminate chatter, maximize removal rates, and extend tool life.

chip load calculationcnc speed settingscutting parameter guidefeeds and speedsrpm formula
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