Cutting Force Prediction in Drilling of Unidirectional Carbon Fiber Reinforced Plastics

2015 ◽  
Vol 9 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Shoichi Tamura ◽  
◽  
Takashi Matsumura ◽  
Keyword(s):  
Carbon Fiber ◽  
Cutting Force ◽  
Cutting Forces ◽  
Fiber Orientation ◽  
Orthogonal Cutting ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Cutting Direction

An analytical forcemodel is applied in order to predict the cutting force in drilling of unidirectional Carbon Fiber Reinforced Plastics (CFRP). Because a threedimensional chip flow is interpreted as a piling up of the orthogonal cuttings, the shear angle, the shear stress on the shear plane and the friction angle in the orthogonal cutting are obtained in the cutting tests. Because the chip thickness and the cutting force of CFRP depend on the cutting direction for the fiber orientation, the orthogonal cutting data are associated with the relative angle of the cutting direction with respect to the fiber orientation. The cutting forces in drilling are predicted using the orthogonal cutting data. The force model considering the fiber orientation is verified in comparison of the predicted cutting forces and the measured ones.

Experimental Study on Surface Quality in Milling Carbon Fiber Reinforced Plastics

2015 ◽  
Vol 667 ◽  
pp. 62-67
Author(s):  
Ju Dong Liu ◽  
You Sheng Li ◽  
Guo Hong Yan ◽  
Li Kun Huang ◽  
Xiao Fan Yang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Cutting Force ◽  
Lower Surface ◽  
Fiber Reinforced ◽  
Milling Cutter ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Right Hand ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced

Basing on the milling experiment of carbon fiber reinforced plastics (CFRP), the machining surface qualities of different edge shape and coated tools are researched contrastively. The results show that: when the CFRP is milled by general right-hand edge milling cutter, due to the small tool rake angle, bad tool sharpness, and carbon fibers of upper and lower surface are both subjected to upswept cutting force, the burrs appear at the upper surface of workpiece. But there is no burr at the lower surface. When the CFRP is milled by interlaced edge or herringbone edge diamond coated milling cutter, which are designed to left-hand and right-hand interlace, the carbon fiber of workpiece’s upper and lower surface are subjected to downward and upswept cutting force respectively. There is no burr at the upper and lower surface of workpiece. Compared with interlaced edge diamond coated milling cutter, herringbone edge diamond coated milling cutter is more suitable for finish machining of CFRP.

Cutting Performance of Carbon Fiber Reinforced Plastics Using PCD Tool

2011 ◽  
Vol 215 ◽  
pp. 14-18 ◽  
Author(s):  
Yong Guo Wang ◽  
Xiang Ping Yan ◽  
X.G. Chen ◽  
Chang Yu Sun ◽  
G. Liu
Keyword(s):  
Carbon Fiber ◽  
Cutting Force ◽  
Cutting Parameters ◽  
Cutting Performance ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Pcd Tool ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced plastics (CFRP) has been widely used in airplanes, spaceships and automobiles. The cutting performance of CFRP with a fiber orientation of 0/45°/90°/135° has been studied at different cutting parameters by using PCD tools. Experiences subjected to orthogonal cutting were performed to investigate the effects of cutting parameters on cutting force, surface finish criteria (delamination) and roughness. Results show that CFRP can be milled by high speed and can get good surface quality with low delamination by using PCD tool. The cutting force decreases under the condition of decreasing the cutting width as well as the feed per tooth and raising the cutting velocity. The cutting force is a key point to control delamination that it should below 200N to get comfortable result. As for roughness, when the cutting force below 250N, the more cutting force, the higher surface roughness, and the trend changes when cutting force over 250N. The relation between cutting force and delamination, cutting force and roughness are obtained respectively through multiple regression analysis.

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