Assessment of Temperature History When Abrasive Milling of Long Fiber Reinforced Polymers

Guesmi, Fethi; Elfarhani, Makram; Ghazali, Sami; Mahfouz, Abdullah S. Bin; Mkaddem, Ali; Jarraya, Abdessalem

doi:10.1007/978-3-030-76517-0_30

Cited by 1 publication

(1 citation statement)

References 16 publications

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“…As regards the midplan temperature

, most gaps

were especially recorded while cutting glass/epoxy perpendicular to the fiber and reach 22% at

and 16.6% at

. Such a difference is mainly attributed to the boundary conditions, resulting in the clamping of the specimen on the machine [ 40 ]. In fact, as the top surface of the specimen is in contact with only ambient air, it favors temperature evacuation and thus plays a role in reducing heat localization at a subsurface.…”

Section: Discussionmentioning

confidence: 99%

Heat Analysis of Thermal Conductive Polymer Composites: Reference Temperature History in Pure Polymer Matrices

et al. 2022

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This attempt aims at assessing heat generation in thermal conductive polymer (TCP) composites widely used in aerospace sectors. Temperature histories were investigated in both nonreinforced and glass-fiber-reinforced TCPs during abrasive milling. Glass/epoxy and glass/polyester composites with 30% unidirectional glass fiber content were prepared according to appropriate curing cycles. Type K thermocouples connected to a data acquisition system ensured the recording of temperature history along the trim plan during milling. Unexpectedly, when milling TCP composites parallel to fibers, peak temperature was found to be slightly lower than that recorded in nonreinforced polymers. The lateral surface of fibers acts to favor sliding friction, which limits heat generation at interfaces, while relatively low specific heat capacity and thermal conductivity of glass fiber disadvantage heat transfer. However, when milling perpendicular to fibers, the contact area between the tool and the transverse failure area of fibers increases drastically, hence involving severe friction at interfaces. This yields peak temperatures sensitively higher than those obtained in nonreinforced polymers. SEM inspections highlighted the failure modes dominating the material removal process in both nonreinforced and glass-fiber-reinforced polymers. The microcracks and debris observed at the trim plan explain, in part, the heat generation detected on temperature rate plots. Thus, heat conduction between phases governs sensitive surface finish integrity and tool lifetime and, hence, has great economic impact on the manufacturing steps.

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“…As regards the midplan temperature

, most gaps

were especially recorded while cutting glass/epoxy perpendicular to the fiber and reach 22% at

and 16.6% at

Section: Discussionmentioning

confidence: 99%

Heat Analysis of Thermal Conductive Polymer Composites: Reference Temperature History in Pure Polymer Matrices

et al. 2022

View full text Add to dashboard Cite

show abstract

Assessment of Temperature History When Abrasive Milling of Long Fiber Reinforced Polymers

Cited by 1 publication

References 16 publications

Heat Analysis of Thermal Conductive Polymer Composites: Reference Temperature History in Pure Polymer Matrices

Heat Analysis of Thermal Conductive Polymer Composites: Reference Temperature History in Pure Polymer Matrices

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