Investigation on the non-coaxiality in the drilling of carbon-fibre-reinforced plastic and aluminium stacks
Investigation on the non-coaxiality in the drilling of carbon-fibre-reinforced plastic and aluminium stacks
复制标题
碳纤维增强塑料和铝叠层钻孔中的非同轴度研究
DOI：
10.1016/j.ijmachtools.2017.11.001
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发表时间：
2018-02
影响因子：
14
通讯作者：
Chen Ken
中科院分区：
文献类型：
--
作者：
Liang Xiong;Wu Dan;Gao Yuhao;Chen Ken
由于切削变形引起的叠孔非同轴是叠孔加工中常见的问题，特别是对于低刚度结构，而碳纤维增强塑料（CFRP）和铝（Al）叠孔加工中的非同轴性问题还没有得到研究。由于CFRP的非均匀性和较差的可加工性，CFRP/Al叠层钻孔中的非同轴度与以往的Al/Al叠层钻孔研究有很大不同。针对CFRP/Al叠层复合材料钻孔加工中的非同轴度问题，通过实验和数值模拟研究，提出了非同轴度产生的机理。在CFRP/Al叠层钻孔实验中观察到严重的非同轴度现象。为了解释这一现象，应用复合材料宏观力学理论，得到了数值模型所需的复合材料层合板的工程常数。该应用程序导致开发一个优化的仿真模型来预测层间间隙和非同轴度。计算结果与实验结果吻合较好，验证了仿真模型的合理性。研究了推力和夹紧力对层间间隙和非同轴度的影响。层间间隙随推力的增大而增大，随夹紧力的增大而减小。此外，推力对非共轴度的影响较为复杂。非共轴度随推力的增大先减小后增大，这是由于低层的“倾斜效应”。另外，在模拟实验范围内，非同轴度随夹紧力的增大而增大。本文的工作使我们能够了解CFRP/Al叠层钻削中非同轴度的特殊性，并为CFRP/Al叠层钻削选择合适的切削参数。
The non-coaxial stacked holes caused by cutting deformation is a common problem in stack drilling, particularly for low-rigidity structure, and the non-coaxiality in carbon-fibre-reinforced plastic and aluminium (CFRP/Al) stack drilling has not been studied. Because of the non-homogeneous behaviour and poor machinability of CFRP, the non-coaxiality in CFRP/Al stack drilling is significantly different from previous studies on Al/Al stack drilling. Focusing on the non-coaxiality in CFRP/Al stack drilling, this paper proposed the mechanism of the non-coaxiality through both experiments and numerical study. Severe non-coaxiality occurrences were observed in the CFRP/Al stack drilling experiments. To explain the observation, the macroscopic mechanics theory of composite was applied to obtain the engineering constants of composite laminates, which are necessary for the numerical model. This application leads to the development of an optimized simulation model to predict the interlayer gaps and non-coaxiality. The numerical results that predict the non-coaxiality are consistent with the experiments, which verified the rationality of simulation model. Furthermore, the effect of the thrust force and clamping force on both interlayer gaps and non-coaxiality were studied. The interlayer gaps gradually increase with the increase in thrust force but decrease with the clamping force. Moreover, the thrust force has a complicated effect on the non-coaxiality. The non-coaxiality first decreases and subsequently increases with the increase in thrust force, which can be attributed to the “tilt effect” in the lower layer. In addition, the non-coaxiality increases with the clamping force in the simulation experiment range. The work in this paper enables us to understand the particularity of the non-coaxiality in CFRP/Al stack drilling and select the appropriate cutting parameters for CFRP/Al stack drilling.
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影响因子：
6.3
作者：
Isbilir, Ozden;Ghassemieh, Elaheh
通讯作者：
Ghassemieh, Elaheh
DOI：
10.1016/j.ijmachtools.2004.02.019
发表时间：
2004-08
影响因子：
14
作者：
C. Tsao;H. Hocheng
通讯作者：
C. Tsao;H. Hocheng
DOI：
10.1007/s00170-015-6955-z
发表时间：
2015-05
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
Lin Zhang;Zi-Hao Liu;W. Tian;W. Liao
通讯作者：
Lin Zhang;Zi-Hao Liu;W. Tian;W. Liao
影响因子：
8.4
作者：
Karnik, S. R.;Gaitonde, V. N.;Davim, J. Paulo
通讯作者：
Davim, J. Paulo
叠层钻削中的层间间隙和不同轴度
DOI：
10.1016/j.ijmachtools.2015.09.007
发表时间：
2015-12-01
影响因子：
14
作者：
Gao, Yuhao;Wu, Dan;Chen, Ken
通讯作者：
Chen, Ken