Drilling performance of uncoated brad spur tools for high-strength carbon fiber-reinforced polymer laminates

Lin, Tieyu; Xu, Jinyang; Ji, Min; Chen, Ming

doi:10.1177/1464420721990413

Cited by 4 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected, the quality of the holes gets worse as the number of drills increases. It should be noted that the wear of the tools can affect surface quality, delamination and thrust forces as found by Lin et al 28 This trend is noticeable for the surface roughness, diameter deviation and delamination. Nevertheless, the trend depends on the configuration.…”

Section: Resultsmentioning

confidence: 60%

An experimental evaluation of cryogenic machining in the drilling of carbon fiber reinforced plastics for aerospace

Martı́nez¹,

Hernandez

Carou

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

The present research aims at studying both dry machining and alternative solutions to wet machining in the drilling of carbon fiber-reinforced polymers (CFRPs). CFRPs are key materials in aerospace and their drilling is critical and challenging. Specifically, cryogenic fluids such as CO2 and N2 were investigated. Drilling tests were performed using three different CFRP laminates. These CFRP laminates are composed of various unidirectional plies of different orientations. Thus, the configurations to analyze were: 0/90/45, 30/60 and 0/90. As output variables, surface roughness, diameter deviation, delamination and thrust forces were analyzed. In general, the internal application of CO2 and dry machining were the best- and worst-performing techniques for surface roughness, respectively. Regarding the dimensional quality, both CO2 and dry machining offered the best results. In the case of LN2 or LN2 + CO2, the results showed that the CFRP configuration is critical for the obtained results. However, it was identified that cryogenics can improve the results of the dry machining process under certain conditions in terms of delamination. Finally, in general, CO2 provided the worst results when attending to the thrust forces.

show abstract

Section: Resultsmentioning

confidence: 60%

An experimental evaluation of cryogenic machining in the drilling of carbon fiber reinforced plastics for aerospace

Martı́nez¹,

Hernandez

Carou

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

show abstract

“…Karalis, G [6] studied the dynamic behavior and failure mechanism of laminates under underwater tensile loads. Lin et al [7] conducted a comparative analysis of the dynamic failure behavior of flat and curved panel structures of woven basalt/epoxy laminates under blast loading, emphasizing the important influence of structural curvature on the dynamic response. Wei et al [8] carried out experiments and numerical simulations on the high-speed penetration of laminates and concluded that, in addition to fiber failure, laminates under penetration loads also include spalling and matrix cracking.…”

Section: Introductionmentioning

confidence: 99%

Research on Tensile Properties of Carbon Fiber Composite Laminates

Wang

Chen²,

Shen³

et al. 2022

Polymers

View full text Add to dashboard Cite

In order to study the thread tensile performance of carbon fiber composite laminates, the connection between the test piece, connecting bolts, bushings, and the composite matrix, was leveraged for loading, and combined with an ultra-sound scanning imaging system, experiments were carried out on the dynamic response to record the failure behavior of the laminate structure of equal thickness. The effects of different pull-off loading strengths on the dynamic failure process, deformation profile, midpoint deformation, failure mode, and energy dissipation ratio of the thread were studied. The results show that (1) with the increase in pull-off strength, the response speed of mid-point deformation increases, the thread deformation mode changes from overall deformation to partial deformation, and the localized effect increases, accompanied by severe matrix and fiber fracture failure; (2) the thread energy dissipation ratio ascends with increasing pull-off strength and exhibits three distinct stages, i.e., elastic deformation, central fracture, and complete failure, which are directly related to the structural failure mode; (3) the failure load increases with the increment of the thickness of the laminate, and the maximum failure surface of the specimen will move from the upper layer of the laminate to the lower layer along the thickness direction; (4) the deformation velocity of the midpoint augments with the increase in the tensile rate, which can be included as a factor to assess the tensile properties of carbon fiber composites.

show abstract

“…Several drill tool geometries have been used in drilling the stacks and in the evaluation of critical thrust force and torque. [17][18] Palanikumar et al, have assessed the effect of various parameters affecting the surface roughness of the drilled hole of GFRP composites through experimental design. 19 Simulated annealing techniques have been adopted by Basavarajappa et al, to study the effects of machining parameters on the delamination factor, specific cutting coefficient, and surface roughness of the drilled hole.…”

Section: Introductionmentioning

confidence: 99%

Drilling induced delamination assessment of nanoparticles reinforced polymer matrix composites

Pramod

Basavarajappa

Kumar

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The knowledge of polymer matrix composites machinability has increased with its rise in multi-field structural applications. Drilling of polymer matrix composites is required to achieve structural integration with greater accuracies. Delamination due to drilling affects the material strength and it occurs at both the entry and hole exit planes. The delamination on the exit plane is critical. The effect of nano-fillers on drilling-induced delamination of reinforced plastics has not been documented extensively and in this article, an attempt is made to explore the application potential of montmorillonite clay and graphene with amine functionalization in minimizing delamination through toughening the epoxy matrix. Experimentation was based on Taguchi’s L16 approach. The delamination factor and circularity ratio were analyzed using an image processing technique in Matlab and Image J. To evaluate the effects of various parameters and parameters interaction effect on the delamination factor, ANOVA was employed and Signal/noise ratios were calculated. The mathematical models were developed for delamination. It was observed that the reduction in the delamination factor was observed in nanoclay and graphene reinforced polymer matrix toughened composites in comparison to the base composites with a reduction in thrust force, specific cutting energy, and increase in circularity ratio.

show abstract

Drilling performance of uncoated brad spur tools for high-strength carbon fiber-reinforced polymer laminates

Cited by 4 publications

References 32 publications

An experimental evaluation of cryogenic machining in the drilling of carbon fiber reinforced plastics for aerospace

An experimental evaluation of cryogenic machining in the drilling of carbon fiber reinforced plastics for aerospace

Research on Tensile Properties of Carbon Fiber Composite Laminates

Drilling induced delamination assessment of nanoparticles reinforced polymer matrix composites

Contact Info

Product

Resources

About