Performance assessment of a hybrid intermittent-progressive grinding strategy for bi-directional carbon fibre reinforced composites

Handa, Danish; Sooraj, V.S.

doi:10.1016/j.matpr.2019.12.314

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…In eccentric sleeve grinding (ESG), fine removal of fibre reinforced composites happens through a step-by-step (progressive) cutting scheme with an intermittent cycle of grain engagements and disengagements. Preliminary investigations on the methodology 34 could exhibit improved grinding efficiency on CFRPs, with significant reduction in average grinding forces, surface roughness and surface defects. The previous works by the authors on ESG discussed kinematics, force modelling, feed selection under eccentric conditions for scallop-free surface generation, general feasibility study, etc.…”

Section: Introductionmentioning

confidence: 99%

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Handa

Sooraj

2022

Journal of Reinforced Plastics and Composites

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Precision machining of Fibre Reinforced Polymer (FRP) Composites needs to be explored further while addressing advanced engineering applications. However, force and temperature-driven damages while machining FRP composites, due to the non-homogenous and low thermal conducting behaviour of fibre-matrix interfaces, place the barrier in this direction. Surface machining using abrasive wheels has been projected as a promising option for fine removal of material in FRPs. However, conventional dry grinding strategy exhibited high grinding force due to continuous interaction of abrasive cutting edges, leading to accumulation of heat at the grinding interface. As the cutting action is continuous, heat dissipation also becomes difficult in this situation. Temperature-driven damages on composite matrix and subsequent failure of reinforced fibres were serious concerns in this case. Although attempted in some situations, usage of cutting fluids was not recommended fully due to wetting effects and agglomeration of swarf that hinder the grinding efficiency. Eccentric Sleeve Grinding (ESG), using an intermittent-progressive cuttings scheme, is proposed in this work as a potential dry grinding strategy for FRPs. Control of heat accumulation through progressive cutting strategy and enhancement of heat dissipation through intermittency in cutting cycle appears to be the unique characteristics of ESG. Experimentation of ESG on carbon fibre reinforced composite samples showed promising grinding temperature reduction, which was justified through a significant reduction in grinding forces, surface defects and roughness.

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Section: Introductionmentioning

confidence: 99%

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Handa

Sooraj

2022

Journal of Reinforced Plastics and Composites

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“…Eccentric sleeve grinding (ESG) is one of the precision machining processes recently introduced by authors, 16,33 in which the cutting scheme is progressive (step-by-step) and intermittent (non-continuous). This hybrid grinding strategy reduces the overall average grinding forces that resulted in minimization of damages in CFRP composites.…”

Section: Introductionmentioning

confidence: 99%

Feasibility studies on wet grinding of carbon fibre reinforced epoxy polymer at minimum defect condition via eccentric sleeve grinding

Handa

Sooraj

2021

Journal of Reinforced Plastics and Composites

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Although surface grinding is reported to be capable of precision material removal in carbon fibre reinforced epoxy polymer composites (CFRPs), it is highly limited by deprived cutting temperature dissipation, tool wear and sensitivity to undesired cutting defects. Continuous engagement of abrasive grains and successive accumulation of heat at cutting interface in conventional surface grinding results in severe surface damages. Though the controlled application of cutting fluids exhibited improved surface integrity, entrapment of fluid droplets into the defective zones/cracks of fibre, matrix and its interfaces are shown to be stimulating further defect propagation. Present paper investigates the feasibility of improving cutting fluid application in CFRP grinding, establishing a minimum surface defect condition through eccentric sleeve grinding (ESG). The reduction of post-grinding surface defects through an intermittent-progressive cutting scheme in ESG is demonstrated and the efficacy of cutting fluids in such a grinding scheme is illustrated through the comparison of grinding forces and surface characteristics.

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Investigating the integral-structure of HRBP/CHP/CF consisting of non-woven flexible inter/intra-ply hybrid composites: Compression, puncture-resistance, electromagnetic interference shielding effectiveness

Yan

Zhang

Shi

et al. 2020

Composite Structures

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Performance assessment of a hybrid intermittent-progressive grinding strategy for bi-directional carbon fibre reinforced composites

Cited by 5 publications

References 11 publications

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Feasibility studies on wet grinding of carbon fibre reinforced epoxy polymer at minimum defect condition via eccentric sleeve grinding

Investigating the integral-structure of HRBP/CHP/CF consisting of non-woven flexible inter/intra-ply hybrid composites: Compression, puncture-resistance, electromagnetic interference shielding effectiveness

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