Wear reduction mechanisms in modulated turning of compacted graphite iron with coated carbide tool

Wear reduction mechanisms in modulated turning of compacted graphite iron with coated carbide tool
复制标题

使用涂层硬质合金刀具调制蠕墨铸铁车削时的磨损减少机制

DOI:
10.1016/j.triboint.2022.108062
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发表时间:
2023
影响因子:
6.2
通讯作者:
Guo, Yang
Guo, Yang
中科院分区:
工程技术1区
文献类型:
--
作者:
Sandoval, Juan;Ali, Aaqib;Kwon, Patrick;Stephenson, David;Guo, Yang

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刀具磨损演变的特点是详细的常规加工(CM)和调制辅助加工(MAM)在干燥和润滑的条件下,以250米/分钟的速度下车削压实石墨铁(CGI)与涂层硬质合金刀具。显着减少磨损相比,实现由MAM CM车削。与MAM美安萌润滑车削相比,MAM美安萌干式车削的刀具磨损更低。结果表明,在MAM中,刀具后刀面上SiO2沉积层的形成和切削刃上SiO2涂层的保存是导致磨损降低的两个主要原因。磨损进程如何减缓所观察到的磨损现象,以及这些现象是由MAM启用的机制进行了讨论。
Tool wear evolution is characterized in detail for turning compacted graphite iron (CGI) with coated carbide tool under conventional machining (CM) and modulation-assisted machining (MAM) in dry and lubricated conditions at a speed of 250 m/min. Significant wear reductions are achieved by MAM compared to CM turning. MAM dry turning leads to lower tool wear than MAM lubricated turning. It is found that two wear phenomena account for the wear reduction in MAM: 1) the formation of SiO2deposition layer on tool flank and 2) the preservation of the coatings on the cutting edge. The mechanisms on how the wear progression is slowed down by the observed wear phenomena as well as these phenomena are enabled by MAM are discussed.
低频调制对加工中切屑-刀具界面润滑的影响
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