Experimental Study on the Tool Wear in Milling Carbon Fiber Reinforced Plastics

2017 ◽  
Vol 893 ◽  
pp. 57-61 ◽  
Author(s):  
Ju Dong Liu ◽  
Xiao Fan Yang ◽  
Zhi Long Xu ◽  
You Sheng Li ◽  
Guo Hong Yan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Cvd Diamond ◽  
Fiber Reinforced ◽  
Milling Cutter ◽  
Impact Action ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Impact

Basing on the milling experiment of carbon fiber reinforced plastics (CFRP), the wear performance of CVD diamond coated tool with different cutting edge is compared and studied. The result shows that lifetimes of interlaced edge and herringbone edge milling cutters are significantly higher than general edge milling cutter, under the same parameters. The lifetime of interlaced edge milling cutter is about 2 times than herringbone edge milling cutter, and 3.5 times than general edge milling cutter. The wear failure mechanisms of CVD diamond coated tools are abrasive wear and coating peeling, which are caused by micro-cutting of hard carbon fiber and the impact action of mechanical load and thermal stress.

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.

STUDY OF THE POSSIBILITY OF INCREASING THE IMPACT RESISTANCE OF THIN-SHEETED CARBON FIBER-REINFORCED PLASTICS DUE TO CLADING WITH ARAMID ORGANOPLASTICS

2021 ◽  
pp. 35-42
Author(s):  
G.F. Zhelezina ◽  
◽  
N.A. Solovieva ◽  
G.S. Kulagina ◽  
P.M. Shuldeshova ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Impact Resistance ◽  
Fiber Reinforced ◽  
Technical Literature ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Impact ◽  
Specific Impact

The article provides the analysis of the scientific and technical literature and the effectiveness of the use of organoplastics in aircraft structures as screens and coatings that provide protection of carbon parts from damage caused by shock and erosion. The paper examined the mechanical properties and the nature of impact fracture of carbon fiber-reinforced plastics samples without a cladding layer. It is shown that it is possible to increase the specific impact strength in bending by 22 % due to cladding of CFRP, and to reduce the area of damage by 30 % upon impact with a kinetic energy of 30 J.

Study on Fabrication and Cutting Performance of CVD Diamond Coated Drills in Machining the Carbon Fiber Reinforced Plastics

2011 ◽  
Vol 175 ◽  
pp. 239-244
Author(s):  
Jian Guo Zhang ◽  
Bin Shen ◽  
Fang Hong Sun
Keyword(s):  
Carbon Fiber ◽  
Tungsten Carbide ◽  
Diamond Films ◽  
Cvd Diamond ◽  
Drilling Process ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced plastics (CFRP) have been widely used for manufacturing spacecraft, aircraft and automobile structural parts in aerospace and automotive industries. However, CFRP is a kind of hard machining materials and conventional tungsten carbide drills always experience severe tool wear, and thus short lifetime in the CFRP drilling process. In this paper, the CVD diamond films are deposited on the surface of cobalt cemented tungsten carbide (WC–Co) drills using hot filament chemical vapor deposition (HFCVD) method. Scanning electron microscope (SEM) is adopted to investigate the surface morphology of as-fabricated CVD diamond coated drills, additional analysis using Raman spectrum also indicates the high purity of sp3 phase of as-deposited diamond film. Furthermore, the machining performance of as-fabricated CVD diamond coated drills is examined in drilling the CFRP, comparing with the uncoated WC-Co drills. The chisel edge and primary cutting edge wear of drills are studied using the tool microscope. The results show that as-fabricated CVD diamond coated drills exhibit a much elongated lifetime than that of uncoated WC-Co drills, and also smoother surface finish of machined holes, which is supposed to be attributed to the excellent wear resistance and satisfied adhesive strength between the as-deposited diamond films and drills.

scholarly journals The influence of milling parameters on the surface roughness of glass and carbon fiber reinforced plastics

Mechanik ◽  
2019 ◽  
Vol 92 (10) ◽  
pp. 649-651
Author(s):  
Krzysztof Ciecieląg ◽  
Kazimierz Zaleski ◽  
Krzysztof Kęcik
Keyword(s):  
Surface Roughness ◽  
Carbon Fiber ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Impact

In this paper, the impact of milling process parameters on the roughness of surface of glass and carbon fiber reinforced plastics was analyzed. The influence of feed per tooth, cutting speed and depth of cut on selected surface roughness parameters was determined. It was found that the surface roughness after milling carbon fiber reinforced plastics was greater compared to the surface of glass fiber reinforced plastics.

scholarly journals Correlation between Drop Impact Energy and Residual Compressive Strength According to the Lamination of CFRP with EVA Sheets

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 224 ◽  
Author(s):  
Sun-Ho Go ◽  
Min-Sang Lee ◽  
Chang-Gi Hong ◽  
Lee-Ku Kwac ◽  
Hong-Gun Kim
Keyword(s):  
Carbon Fiber ◽  
Vinyl Acetate ◽  
Impact Test ◽  
Ethylene Vinyl Acetate ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Impact

Carbon-fiber-reinforced plastic is an important building material; however, its application is limited because of its brittleness, leading to vulnerability under shock. Thus, the strength performance of carbon-fiber-reinforced plastics needs to be improved. Here, the drop impact test was conducted to analyze the impact energy and fracture characteristics of carbon-fiber-reinforced plastics and ethylene vinyl acetate sheets. The compression after impact test was performed to assess the residual compressive strength. The thermal energy generated was measured as change in temperature at the time of fracture to investigate the relationship between thermal and mechanical properties. The impact absorption efficiency of 100% was achieved when the carbon-fiber-reinforced plastics specimen was laminated with four or more sheets of ethylene vinyl acetate. The thermal energy generated during impact, the impact load, and the compression after impact test strength was reduced with the increasing number of laminated ethylene vinyl acetate layers. Our results showed that, by carefully selecting the optimal conditions of fabricating the carbon-fiber-reinforced plastic/ethylene vinyl acetate composites, carbon composite materials can be used for impact mitigation.

The impact of prepreg aging on its processability and the postcure mechanical properties of epoxy-based carbon-fiber reinforced plastics

2016 ◽  
Vol 231 (1-2) ◽  
pp. 62-72 ◽  
Author(s):  
D Blass ◽  
S Kreling ◽  
K Dilger
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Shelf Life ◽  
Aviation Industry ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Impact

Due to the intention to increase the product efficiency by weight reduction, the application of carbon fiber reinforced plastics and its processing becomes more and more important for the industrial production planning. The aviation industry mostly uses epoxy-based preimpregnated laminates (prepregs). These prepregs are stored in the refrigerated state and may be processed after defrosting only for a specific shelf-life or so-called out-time. This limitation in processing time reduces the efficiency of the entire production, for example due to the waste of material during production stops. To improve the production effectiveness the shelf-life should be as high as possible, to be able to avoid material waste during production stops. Therefore, the processability and the postcure mechanical properties of two representative prepregs were investigated during this study for different aging stages and correlated with the reactivity of the prepregs.

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