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具有微细表面形状的DLC涂层切削刀具的开发 被引量:3

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摘要 改善刀具与切屑或工件之间的润滑性能对获得良好的切削性能是极其重要的。尤其是MQL加工要求达到很高的润滑性能。但是,MQL加工存在润滑性能差或稳定性不足等问题,在实际加工中的应用十分有限。为了弄清这一问题,对铝合金在供应切削油的情况下进行断续切削-断面铣削试验。结果证实,刀具和切屑间的润滑性能随着切削的进行,即随着切削长度的延长而下降。为了解决这一问题,开发出具有微细表面形状(即微槽)的刀具,以期微槽能起切削液保持环的作用。一系列切削试验表明,与无微槽的常规刀具相比,新开发刀具的剪切角增大,切削力减小。这证明,微槽能降低刀具表面的摩擦。另外还发现,新开发刀具在MQL加工中能有效地保持良好的润滑性能。
出处 《超硬材料工程》 CAS 2008年第3期49-54,共6页 Superhard Material Engineering
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参考文献12

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