Abstract Minimum Quantity of Lubricant (MQL) has been used in the grinding process to make the process eco-friendlier. On the other hand, it brings some technical problems to this process: the clogging phenomenon, i.e., chips adherence on the wheel cutting surface. Although this phenomenon yields widely known negative effects on productivity and workpiece quality, few studies exist about clogging in MQL grinding. Thus, this paper aims to explain the clogging formation and evaluate its effects on workpiece finishing and geometrical tolerances. External cylindrical plunge grinding tests in quenched and tempered AISI 4340 steel with CBN wheel, varying lubri-cooling conditions were carried out. Clogging affects the cutting ability of the grinding wheel and impacts on the chip formation. The addition of water in the MQL flow reduced the clogging occurrence in 40%, which corroborated to a reduction of 51% the surface roughness and 58% the roundness error.

中文翻译：

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使用稀释油和同时清洗砂轮的最少量润滑技术实现可持续磨削

摘要 在研磨过程中使用了最小量润滑剂 (MQL) 来使该过程更加环保。另一方面，它给这个过程带来了一些技术问题：堵塞现象，即切屑粘附在砂轮切割面上。尽管这种现象会对生产率和工件质量产生众所周知的负面影响，但关于 MQL 磨削中的堵塞的研究很少。因此，本文旨在解释堵塞的形成并评估其对工件精加工和几何公差的影响。使用 CBN 砂轮对调质 AISI 4340 钢进行外圆切入磨削试验，在不同的润滑冷却条件下进行。堵塞会影响砂轮的切削能力并影响切屑的形成。