氟金云母陶瓷车削加工中切削温度实验研究

发布时间：2018-05-26 23:06

  本文选题：特征温度 + 切削温度　； 参考：《机床与液压》2017年17期

【摘要】：通过硬质合金刀具车削氟金云母陶瓷实验,研究可加工陶瓷切削温度。以特征温度表征切削温度研究氟金云母可加工陶瓷车削加工中的切削温度。结果表明,特征温度随转速的变化幅度小;随着进给速度增大,特征温度整体上是下降的,并且进给速度在0.1~0.12 mm/r间,特征温度下降幅度较大;在特征温度随着切削深度增加而增加的过程中,存在一个下降阶段,而且下降阶段结束后,特征温度增长幅度变大。同一工艺参数下随切削次数的增加,测得的特征温度升高,其原因是:每次切削中,摩擦热主导温度变化,随切削次数的增加,刀具磨损量增大,特征温度升高。由于陶瓷低导热性和脆性,切削温度振颤不明显。
[Abstract]:The cutting temperature of machinable ceramics was studied by turning fluorophlogopite ceramics with cemented carbide tools. The cutting temperature was characterized by characteristic temperature. The cutting temperature of fluorophlogopite machinable ceramics was studied. The results show that the characteristic temperature changes slightly with the speed of feed, and decreases with the increase of feed speed, and when the feed speed is between 0.1 and 0.12 mm/r, the drop of characteristic temperature is larger. In the process of increasing the characteristic temperature with the increase of cutting depth, there exists a descending stage, and the amplitude of characteristic temperature increases after the end of the falling stage. The measured characteristic temperature increases with the increase of cutting times under the same technological parameters. The reason is that the friction heat dominates the temperature in each cutting, and with the increase of cutting times, the tool wear quantity increases and the characteristic temperature increases. Due to the low thermal conductivity and brittleness of ceramics, the cutting temperature tremor is not obvious.
【作者单位】： 东北大学秦皇岛分校控制工程学院;东北大学机械工程及自动化学院;
【基金】：国家自然科学基金资助项目(51275083)
【分类号】：TQ174.6
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本文编号：1939304