Characteristics of chip evolution with elevating cutting speed from low to very high
Characteristics of chip evolution with elevating cutting speed from low to very high
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DOI：
10.1016/j.ijmachtools.2011.12.003
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发表时间：
2012-03
影响因子：
14
通讯作者：
Liu Zhanqiang;Sun Guosheng
中科院分区：
文献类型：
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作者：
Liu Zhanqiang;Sun Guosheng
为了验证切屑形态与材料动态力学性能之间的相关性，对AerMet 100钢进行了宽范围（30 ~ 7000 m/min）的切削试验。收集芯片并用光学显微镜拍摄照片。重点研究了工件材料脆化和切屑形态随切削速度的变化规律。结果表明，随着切削速度的增加，工件材料发生脆化。在7000米/分钟的速度下，金属完全变脆，切屑由小的非塑性断裂碎片组成。给出了切削过程中切削温度和切削热的变化规律。
To validate the correlation between chip morphology and material dynamic mechanical properties, a wide-range cutting speed (from 30m/min to 7000m/min) experiment is conducted with AerMet100 steel. The chips are collected and photos are taken with an optical microscope. The focus is put on workpiece material embrittlement and chip morphology evolution with the cutting speed rising. It is found that with the increase of cutting speed the workpiece material embrittles. At 7000m/min the metal becomes completely brittle and the chip is made up of small non-plastic fractured fragments. Characteristics of the cutting temperature and cutting heat in the process are also presented.