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首页> 外文期刊>International Journal Precision Engineering Manufacturing-Green Technology >High-Speed Milling of Hardened Mold Steel P20 with Minimum Quantity Lubrication
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High-Speed Milling of Hardened Mold Steel P20 with Minimum Quantity Lubrication

机译：高速研磨的硬化模具钢P20，具有最小润滑

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摘要

Strong thermal–mechanical coupling and rapid tool failure easily occur in the milling process of hardened steel with solid end mills. This work investigates the effectiveness of minimum quantity lubrication (MQL) during high-speed milling of hardened mold steel. Three kinds of spraying modes were designed in the experiment. They are namely the spraying ways to the flank face (MQL-F), to the rake face (MQL-R) and to the rake and flank faces (MQL-FR). The cutting forces, tool wear, and chips when using the MQL modes and compressed air cooling mode (CAIR-F) were compared, and the wear mechanism and lubrication mechanism were further analyzed. The results showed that the tool wear values and milling forces of several MQL modes were significantly lower than those with CAIR-F. The milling force and tool wear values were successively reduced using MQL-R, MQL-F, and MQL-FR, with better lubrication of the rake face resulting in a smaller curvature radius for the chip. Abrasion wear, adhesion/attrition wear, and flaking/chipping were the main wear mechanisms. The MQL-FR method was the optimal method of the MQL modes. It could effectively reduce the cutting contact stress and unit cutting energy, and obviously reduced wear phenomena such as adhesion and chipping.
机译：用固体终端磨机的硬化钢的铣削过程中，强大的热机械耦合和快速刀具衰竭容易发生。这项工作研究了在高速研磨的硬化模钢中的最小数量润滑（MQL）的有效性。在实验中设计了三种喷涂模式。它们是将侧面（MQL-F）的喷涂方式（MQL-R）和耙子和侧面（MQL-FR）喷射到侧面（MQL-F）。比较使用MQL模式和压缩空气冷却模式（CaiR-F）时的切割力，工具磨损和芯片，进一步分析磨损机构和润滑机制。结果表明，几种MQL模式的工具磨损值和铣削力显着低于Cair-F的磨损力。使用MQL-R，MQL-F和MQL-FR连续地减少铣削力和工具磨损值，具有更好地润滑耙面，从而导致芯片的曲率半径较小。磨损磨损，粘附/磨损磨损和剥落/切削是主要的磨损机构。 MQL-FR方法是MQL模式的最佳方法。它可以有效地降低切割接触应力和单位切割能量，明显减少磨损现象，如粘附性和碎裂。

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  • 作者

    Shixiong Wu; Hongchang Liao; Suyang Li; Jundong Bi; Zhiyang Li;

  • 作者单位

    Mechanical and Electrical Engineering Institute Guangdong University of Technology Panyu Higher Education Mega Center;

    Mechanical and Electrical Engineering Institute Guangdong University of Technology Panyu Higher Education Mega Center;

    Mechanical and Electrical Engineering Institute Guangdong University of Technology Panyu Higher Education Mega Center;

    Mechanical and Electrical Engineering Institute Guangdong University of Technology Panyu Higher Education Mega Center;

    Mechanical and Electrical Engineering Institute Guangdong University of Technology Panyu Higher Education Mega Center;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Hardened steel; High-speed milling; MQL; Solid end mill;

    机译：硬化钢;高速铣削;MQL;固体终端磨机;

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