English: MQL Can Improve Clean CNC Milling When Applied Correctly
Minimum quantity lubrication, often called MQL, delivers a small amount of lubricant directly to the cutting zone. In CNC milling, MQL can reduce friction, support chip evacuation and keep the machining area cleaner than heavy flood coolant. For carbide end mills, the benefit depends on correct nozzle direction, suitable material and stable cutting parameters.
MQL is often useful for aluminum, some steels and clean production environments where coolant management is important. It is not a universal replacement for flood coolant. Deep pockets, heavy cuts and materials that trap heat may still require stronger cooling or through-tool coolant. The best decision depends on chip shape, tool temperature and surface finish.
How to use MQL effectively
Aim the nozzle at the cutting edge before chips leave the flute. Keep tool engagement predictable and avoid chip packing. If chips become dark or the tool sounds unstable, review feed rate, radial engagement and air pressure before increasing speed.
中文：CNC 铣削中 MQL 微量润滑的应用
MQL 微量润滑是将少量润滑介质直接送到切削区。它可以降低摩擦、帮助排屑，并让加工环境比大量切削液更清洁。对于硬质合金铣刀来说，MQL 是否有效取决于喷嘴方向、材料类型和切削参数稳定性。
MQL 常用于铝合金、部分钢件和对清洁度要求较高的加工环境，但它不是万能替代方案。深腔、重切削或热量难以带走的材料，仍可能需要更强冷却。判断依据应包括切屑形态、刀具温度和表面质量。
Français : Micro-lubrification MQL en fraisage CNC
La lubrification MQL apporte une petite quantité de lubrifiant directement dans la zone de coupe. Elle peut réduire le frottement, améliorer l’évacuation des copeaux et garder l’environnement d’usinage plus propre. Le réglage de la buse et la stabilité des paramètres restent essentiels.
Русский: MQL-смазка при CNC-фрезеровании
Минимальная смазка MQL подает небольшое количество смазочного материала прямо в зону резания. Она снижает трение, помогает удалять стружку и делает процесс чище, но требует правильного направления сопла и стабильных режимов резания.
