Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation

Elfarhani, Makram; Guesmi, Fethi; Mkaddem, Ali; Ghazali, Sami; Rubaiee, Saeed; Jarraya, Abdessalem

doi:10.3390/ma15144792

Cited by 4 publications

(3 citation statements)

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“…As a result of the damage, the mechanical strength of the machined parts is subsequently reduced [2][3][4][5][6]. There have been many studies on the issue of delamination during milling [7][8][9][10][11][12], etc., but the studies were mostly not focused on the milling of composite materials from glass fiber-reinforced polymers (GFRP). Very few other studies have been developed on the process of milling of GFRP materials [5,13], etc.…”

Section: Introductionmentioning

confidence: 99%

Study of the Machining Process of GFRP Materials by Milling Technology with Coated Tools

2022

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Glass fibers are often used as reinforcing fibers in reinforced polymers. Composites reinforced with glass fibers (GFRP) stand out with excellent mechanical and physical properties applicable to industrial practice. Machining these composites requires the correct choice of tools and cutting conditions so that the machined surface shows good properties, there is no fiber delamination, thermal stress on the workpiece and the tool, or excessive tool wear. The study was devoted to circumferential milling of fabric-bonded GFRP plates, in which attention was paid to the influence of the abrasive effect of glass fibers on wear and tool life. Attention was also paid to surface roughness after machining, material delamination, and forces during machining were measured. Three end mills of the same diameter with different coatings, number of teeth, and geometry were selected for the study. This choice of tools was intended to achieve various accompanying and subsequent phenomena that were investigated. Milling was performed on a CNC milling center under preselected cutting conditions. The paper summarizes information on fiber delamination and machined laminate damage after milling, tool wear, and surface roughness parameters as a function of tool wear. This paper provides an opportunity for researchers to increase their knowledge of specific aspects of milling GFRP composites, whether with a tool specifically designed for this or not.

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Section: Introductionmentioning

confidence: 99%

Study of the Machining Process of GFRP Materials by Milling Technology with Coated Tools

2022

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“…The effect of the glass fiber reinforcement and particulate filler is examined by many researchers. For instance, Elfarhani et al [ 22 ] examined the influence of the laminating configuration of a glass fiber-reinforced polymer, during the dry edge trimming process. Sattar et al [ 23 ] tested composites made of a 1″ long glass fiber, incorporated within a polyamide 6 (nylon) matrix.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Powder and Emulsion Binders on the Tribological Properties of Particulate Filled Glass Fiber Reinforced Polymer Composites

et al. 2023

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Investigations into polymer composites are mainly focused on properties dependent on glass fiber reinforcement and particulate fillers. In the present study, the effect of the binder was examined. The specimens were produced with two types of epoxy resin, with similar numbers of glass mat layers and similar proportions of quartz powder added. However, one group was fabricated with an emulsion binder in the glass mats and another group with a powder binder. Attention was concentrated on the tribological properties of the as-prepared composites, though their strength was examined as well. The hardness of the Sikafloor matrix was found to be much more sensitive to the applied binder than that of the MC-DUR matrix. No direct correlation between the microhardness and the specific wear rate was observed and increasing the particulate filler proportion did not cause a direct increase of the specific wear rate. In particular, the highest specific wear rate, around 350 J/g, was reached for both matrices with a 1% quartz addition when the emulsion binder was applied, while in the case of the powder binder it was with 6% quartz with the MC-DUR matrix, and there was no quartz addition with the Sikafloor matrix. The highest microhardness, HV0.5 = 25, in turn, was reached for the mats with the emulsion binder in the Sikafloor matrix with an addition of 10% quartz powder, while the highest friction coefficient was exhibited in the composite with the MC-DUR matrix, when 1% of the quartz powder and the emulsion binder were applied.

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“…A study by Bin et al [23] explored the chip formation mechanisms and chip morphology during composite machining and investigated the impact of cutting parameters on chip thickness, curling, and chip evacuation. Elfarhani et al and Shyha et al [24][25] investigated the thermal aspects of edge trimming in bio-filled GFRP, analyzing the impact of fiber orientation and silica sand filler on heat generation; valuable insights were gained regarding the thermal behavior during edge trimming operations.…”

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confidence: 99%

Effect of Turning Parameter and Fiber Pullout on Machinability of Unidirectional EGFRP under Cryogenic Condition

NARESH,

Padhy

2023

Int. J. Automot. Mech. Eng.

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The non-homogeneous and anisotropic nature of composites poses challenges during machining, requiring the use of specialized cutting tools. GFRP materials were selected for their excellent elasticity, corrosion resistance, and high strength, making them ideal for applications in the aerospace and automotive industries. In this work, the surface quality of UD-GFRP composite bars during CNC machining in diverse machining conditions (dry, wet, and cryogenic) was investigated while considering the fiber-pullout issue. The UD-EGFRP composite materials have been machined with a polycrystalline diamond tool. The Taguchi-L9 orthogonal-array technique is used to investigate and further analysis. Three independent-variables feed rate, rotational speed or cutting speed, and depth of cut have been taken into account for their optimal design to get better machinability of EGFRP. This study also investigates the delamination criterion in composites and establishes the correlation between its input parameters and output responses. The findings revealed that cryogenic machining led to a notable improvement of 25.21% in surface roughness compared to the other lubrication methods. Also, the reduction from 84 µm to 34 µm in fiber-pullout signifies that cryogenic cooling effectively mitigated the occurrence of fiber-pullout.

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Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation

Cited by 4 publications

References 50 publications

Study of the Machining Process of GFRP Materials by Milling Technology with Coated Tools

Study of the Machining Process of GFRP Materials by Milling Technology with Coated Tools

The Effect of Powder and Emulsion Binders on the Tribological Properties of Particulate Filled Glass Fiber Reinforced Polymer Composites

Effect of Turning Parameter and Fiber Pullout on Machinability of Unidirectional EGFRP under Cryogenic Condition

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