English: Feed Per Tooth Controls How the Cutting Edge Works
Feed per tooth is one of the most important CNC milling parameters because it defines how much material each cutting edge removes. If chip load is too low, the carbide end mill may rub instead of cutting, which increases heat and shortens tool life. If chip load is too high, the tool can overload, vibrate or chip.
Correct feed per tooth depends on tool diameter, flute count, material, coating, machine rigidity and radial engagement. Programmers should treat chip load as a working range, not a fixed number. A stable chip shape, good sound and consistent surface finish are practical signs that the tool is cutting properly.
SEO machining takeaway
Chip load optimization improves tool life, machining stability and surface finish. It also helps shops avoid the common mistake of reducing feed too much when troubleshooting heat or chatter.
中文：每齿进给如何影响 CNC 铣削效果
每齿进给决定了每个切削刃实际切除多少材料，是 CNC 铣削中非常关键的参数。切屑厚度过低时，硬质合金铣刀容易摩擦而不是切削，导致热量增加和刀具寿命下降。切屑厚度过高时，则可能产生过载、振动或崩刃。
合理每齿进给取决于刀具直径、刃数、材料、涂层、机床刚性和径向切宽。编程时应把切屑厚度看作一个合理范围，而不是固定数值。稳定切屑、声音正常和表面一致，是参数合适的重要信号。
Français : Avance par dent en fraisage CNC
L’avance par dent détermine l’épaisseur du copeau. Une charge trop faible provoque du frottement, tandis qu’une charge trop élevée peut créer des vibrations et des éclats. L’optimisation améliore la durée de vie de la fraise carbure.
Русский: Подача на зуб при CNC-фрезеровании
Подача на зуб определяет толщину стружки для каждой режущей кромки. Слишком малая подача вызывает трение и нагрев, а слишком большая может привести к вибрации и сколам инструмента.
FAQ
What happens if feed per tooth is too low? The tool may rub, generate heat and wear faster instead of forming a clean chip.
How can operators confirm chip load is correct? Check chip shape, spindle load, sound, surface finish and tool wear after the first part.
Related reading: High-Feed CNC Milling and CNC Tool Wear Diagnosis.
