Sub-Fiber Scale Precision Dicing of Aramid Fiber-Reinforced Plastic Composites

Wen, Quan; Hu, Jintao; Yuan, Zewei

doi:10.3390/machines10050334

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…Especially feed rate was found to have a significant effect on surface roughness. 40 Optimization of cutting parameters is necessary to reduce delamination, cutting forces and surface roughness values. One study showed that feed rate has a greater effect on the surface roughness of the drilled hole than cutting speed.…”

Section: Evaluation Of Surface Roughnessmentioning

confidence: 99%

Reducing delamination risk with response surface methodology-supported drilling analysis for Nomex® aramid fiber composites

Yarar

2023

Journal of Composite Materials

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This article presents a comprehensive experimental investigation into the drilling behavior of Nomex®, a type of aramid fiber. The study specifically examines the impact of various cutting parameters and drill bit types on drilling outcomes. While Nomex® offers many advantages, difficult chip evacuation during drilling of aramid fiber composites can lead to surface defects and delamination. The research aims to explore how drilling parameters—such as spindle speed, feed rate—and four distinct drill bit types affect drilling performance. The analysis encompasses factors such as thrust force, torque, and surface roughness, studied under different drilling conditions and with various drill bit types. Moreover, the research assesses peeling and push-out delamination factors to gain insights into drill bit and coating characteristics. An examination of burr and chipping further enhances the comprehension of drilling performance. To determine the most effective drilling conditions, the study employs multi-response optimization. The optimal drilling performance is achieved with a combination of a 0.1 mm/rev feed rate, 1402.82 r/min spindle speed, and HSS-TiN drill type. This configuration successfully integrates responses, resulting in a composite desirability value of 0.95.

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Section: Evaluation Of Surface Roughnessmentioning

confidence: 99%

Reducing delamination risk with response surface methodology-supported drilling analysis for Nomex® aramid fiber composites

Yarar

2023

Journal of Composite Materials

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“…These properties empower engineers to fine-tune aircraft component performance, adapting to the dynamic demands of the industry. This pairing imbues AFRP laminates with a potent combination of strength, lightweight nature, and resistance to high temperatures [5]. Aramid fibers contribute to structural strength and rigidity, while the polymer matrix offers adhesion and toughness [6].…”

Section: Introductionmentioning

confidence: 99%

Investigating Twist Drill Design Influence on Thrust Force and Surface Roughness in Drilling AFRP/ Al7075-T6 Stacks Materials

C. T. Xiang,

M. R Abdul Razak,

M. H Hassan

et al. 2024

IJNeaM

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Drilling Aramid Fiber-Reinforced Plastic (AFRP) presents unique challenges when compared to drilling other composite panels. These difficulties arise from the high-toughness characteristics of aramid fibers, which exhibit a tendency for ductile deformation during the drilling process. This research explores the influence of drill bit design on the drilling process stack-up materials, which comprise Aramid Fiber Reinforced Plastic Composite Laminates (AFRP) and Aluminum Al7075-T6. Three distinct bit designs were employed in the experiment, conducted on a Computer Numerical Control (CNC) machine operating at a spindle speed of 2000 rev/min and a feed rate of 0.05 mm/rev. To measure thrust force during drilling, a dynamometer was integrated into the setup. Subsequently, a roughness tester was utilized to assess the hole surface roughness of the stack-up materials. For AFRP materials, the w-point drill design emerged as the optimal choice, reducing thrust force by approximately 5% to 13% compared to other drill bit designs. Conversely, for Al7075-T6 panels, the tapered web drill design demonstrated exceptional results, lowering thrust force by approximately 21% and 50% in comparison to burnishing and w-point drill bits, respectively. In terms of hole surface roughness, the burnishing drill type consistently produced the smoothest surfaces, boasting significant improvements of 44% and 82% when compared to the tapered web and w-point drill bits for AFRP panels. Similarly, for Al7075-T6 panels, the burnishing drill type consistently outperformed the tapered web and w-point drill bits by 74% and 88%, respectively, in achieving a superior hole surface finish. These findings underscore the critical importance of selecting the appropriate drill bit design to optimize thrust force reduction and hole surface quality when working with stack-up materials.

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“…Chen et al 2 conducted cutting test research on CFRP and found that the fiber orientation angle was u = 0°, u = 45°, and u = 90°, the hole wall quality is good, at u = 135°, the hole wall quality is poor. Wen et al 3 Milled AFRP at a sub-fiber scale with an ultra-thin diamond cutter. The results show that the surface quality is the best when the cutting speed is 91.11 m/s, the cutting depth is 0.2 mm, and the feed speed is 5 mm/s.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on influence mechanism of fiber orientation angle in AFRP cutting

Wang,

Shi,

Yan

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The experimental study on aramid fiber-reinforced composites (AFRP) was carried out. The milling experiments of AFRP were carried out from different fiber orientations. The changes in surface quality, fiber section, and chip shape in mPIC1195147illing under different fiber orientations were studied, and the action law of the blade and tooth was analyzed from the micro perspective. The response surface are used to analyze the cutting force. The mathematical model is established to predict the minimum cutting force. The variance analysis method is used to analyze the influencing factors and their weights of cutting force. The research shows that the cutting force is the smallest when the fiber orientation angle is 0° or 90°, the milling surface quality is good, and the chips are primarily powdery. The cutting force is the largest when the fiber orientation angle is 45° and the milling surface quality is poor. The chips are mainly flocculent. At this angle, the cutting force is affected by three factors, and the interaction has the most significant proportion. When the fiber orientation angle is 30° or 60°, the cutting force, the fiber cross-section, and the surface quality are between the former two, and most of the chips are mixed chips (powdery and flocculent). The evolution and distribution law of burr is obtained. During AFRP milling, the milling surface is always sheared on one side and accompanied by extrusion. The fibers are sheared and broken, the surface burrs are few, the side is stretched, the fibers are stretched and broken, and the surface burrs are many. The action rule of the cutting tool on transverse and longitudinal fibers is summarized.

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Sub-Fiber Scale Precision Dicing of Aramid Fiber-Reinforced Plastic Composites

Cited by 7 publications

References 24 publications

Reducing delamination risk with response surface methodology-supported drilling analysis for Nomex® aramid fiber composites

Reducing delamination risk with response surface methodology-supported drilling analysis for Nomex® aramid fiber composites

Investigating Twist Drill Design Influence on Thrust Force and Surface Roughness in Drilling AFRP/ Al7075-T6 Stacks Materials

Experimental study on influence mechanism of fiber orientation angle in AFRP cutting

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