Investigation on an Innovative Method for High-Speed Low-Damage Micro-Cutting of CFRP Composites with Diamond Dicing Blades.
Investigation on an Innovative Method for High-Speed Low-Damage Micro-Cutting of CFRP Composites with Diamond Dicing Blades.
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用金刚石切割刀片高速低损伤微切割 CFRP 复合材料的创新方法研究
DOI：
10.3390/ma11101974
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发表时间：
2018-10-13
期刊：
影响因子：
--
通讯作者：
Zheng P
中科院分区：
文献类型：
--
作者：
Yuan Z;Hu J;Wen Q;Cheng K;Zheng P
本文提出了一种碳纤维增强塑料（CFRP）高速微切削的创新方法。它采用用于微加工应用的金刚石切割刀片，厚度约为200μm，转速高达30,000rpm，以满足低损伤表面完整性要求。对工艺参数、切削损伤、表面粗糙度和主轴振动进行了彻底研究，以评估和验证该方法。结果表明，高达76 m/s的高切割速度不仅显着提高了超薄划片刀片的刚性，而且使每个金刚石磨粒的切割深度降低至10 nm以下，这都非常有利于获得Ra 0.025 μm左右的极精细加工表面，且没有明显的分层、毛刺和纤维拉出等损伤。严重的主轴振动限制了转速的进一步提高，25000rpm的转速实现了最佳的精加工表面。此外，与大多数钻铣方法的研究结果不同，所提出的微切削方法在0°纤维取向切削时获得最大切削电流和表面粗糙度，而在90°纤维取向切削时获得最小切削电流和表面粗糙度。金属结合剂切割刀片比树脂结合剂切割刀片实现更小的表面粗糙度。本文还通过研究加工表面的形貌来讨论切割机理，并得出结论：纤维和树脂局部区域的微断裂和塑性流动是用金刚石磨料刀片切割 CFRP 复合材料的主要材料去除机制。
This paper presents an innovative method for high-speed micro-cutting of carbon fiber reinforced plastics (CFRP). It employs a diamond dicing blade for micromachining applications, with a thickness of about 200 μm and rotational speeds up to 30,000 rpm so as to meet the low-damage surface integrity requirements. The process parameters, cutting damage, surface roughness, and the spindle vibration were thoroughly investigated to evaluate and validate the method. The results indicate that a high cutting speed up to 76 m/s not only remarkably increases the rigidity of an ultra-thin dicing blade, but also decreases the cutting depth per diamond grit to below 10 nm, both of which are very conducive to obtaining a very fine machined surface of about Ra 0.025 μm, with no obvious damage, such as delamination, burrs, and fiber pull out. The serious spindle vibration limits the rotational speed to increase further, and the rotational speed of 25,000 rpm achieves the best fine machined surface. Furthermore, unlike most research results of the drilling and milling method, the proposed micro-cutting method obtains the maximum cutting current and surface roughness when cutting at 0° fiber orientation, while obtaining a minimum cutting current and surface roughness when cutting at 90° fiber orientation. The metal-bonded dicing blade achieves smaller surface roughness than the resin-bonded dicing blade. This paper also discusses the cutting mechanism by investigating the morphology of the machined surface and concludes that the micro breakage and plastic-flow in local regions of fibers and resin are the main material removal mechanisms for dicing CFRP composites with a diamond abrasive blade.
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影响因子：
13.1
作者：
Krishnaraj, Vijayan;Prabukarthi, A.;Davim, J. P.
通讯作者：
Davim, J. P.
交错式PCD刀具铣削CFRP的实验研究
影响因子：
2.7
作者：
Chen, Tao;Wang, Daoyuan;Liu, Xianli
通讯作者：
Liu, Xianli
影响因子：
4.3
作者：
El-Mahllawy, Medhat S.;Kandeel, Ayman M.;El Nagar, Abdeen M.
通讯作者：
El Nagar, Abdeen M.
DOI：
10.1115/1.3159047
发表时间：
2009-08-01
影响因子：
4
作者：
Eynian, M.;Altintas, Y.
通讯作者：
Altintas, Y.
DOI：
10.3390/ma11030442
发表时间：
2018-03-18
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Caggiano A
通讯作者：
Caggiano A