Measurement and Analysis of Cutting Force, Temperature and Cutting-induced Top-layer Damage in Edge Trimming of CFRPs

被引：6
|
作者：
Wang F. [1 ]
Yin J. [1 ]
Jia Z. [1 ]
Ma J. [1 ]
Xu Z. [2 ]
Wang D. [1 ]
机构：
[1] Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education, Dalian University of Technology, Dalian
[2] Inner Mongolia First Machinery Group Corporation Limited, Baotou
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2018年 / 54卷 / 03期
关键词：
Carbon fiber reinforced polymer (CFRP); Cutting force; Cutting temperature; Damage; Edge trimming;
D O I：
10.3901/JME.2018.03.186
中图分类号：
学科分类号：
摘要：
Carbon fiber reinforced polymer (CFRP) composites have a great advantage in the fields including aeronautics and astronautics for their light weight and high strength, when compared to the more conventional materials. However, the cutting energy and the heat conductivity are serious difference between fibers and resin phases. Consequently, when cutting off the high-strength fibers, it is prone to provide problems like crack for the low-strength interface. Besides, heat accumulation may cause resin softening, which in turn deteriorates the crack growth. In some cases, the crack has a strong impact on the service performance and reliability of final parts. To solve the problems encountered in realizing the high quality and efficiency when machining of CFRP composites, the mechanism of damage formation under the combined effects of cutting force and cutting heat should be clarified first. In the current paper, a novel method to evaluate the damage extent on the top layer of CFRP composites is developed. This method can replace the conventional assessment approach of damage extent, which can only taking the maximum length of damage into account. Afterwards, the influences of cutting parameters on the damage, cutting force and cutting temperature are analyzed. The effects of cutting force and cutting temperature on the damage formation is also discussed. It suggests that reducing the single cutting thickness and controlling the cutting temperature in the reasonable range are the effective approach to improve machining quality. © 2018 Journal of Mechanical Engineering.
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页码：186 / 195
页数：9
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