Multi-constrained optimization in ball-end machining of carbon fiber-reinforced epoxy composites by PSO

Shahrajabian, Hamzeh; Farahnakian, Masoud

doi:10.1080/23311916.2014.993157

Cited by 7 publications

(5 citation statements)

References 17 publications

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“…The TiAlN coating increased the nose radius, reduced the sharpness of the cutting edge and led to an increase in the height deviation. This is consistent with some studies [ 29 , 32 ].…”

Section: Discussionsupporting

confidence: 94%

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Milling of an Al/CFRP Sandwich Construction with Non-Coated and TiAlN-Coated Tools

et al. 2020

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In this study, the effect of cutting parameters on the quality of an Al/CFRP sandwich structure (aluminium alloy–carbon fibre reinforced polymer) after milling with uncoated and TiAlN-coated tools was examined. The results of the cutting force were also investigated. The research was conducted in a VMC 800 HS vertical machining centre with a variable cutting speed and feed. The milling process was carried out using a non-coated, two-blade carbide milling cutter with a 35° helix angle and an analogous tool with a TiAlN coating. The surface quality was characterised in terms of the height deviation, which is one of the shape deviations after machining hybrid materials. The research showed that the maximum (77.60 µm) and minimum (1.78 µm) values of the height deviations were obtained using the tool with a TiAlN coating. It was found that the tested factors had significant effects on the height deviation, where the feed had the greatest influence and the cutting speed had the lowest influence on the surface quality. The tested factors were not statistically significant in terms of the cutting force.

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“…The TiAlN coating increased the nose radius, reduced the sharpness of the cutting edge and led to an increase in the height deviation. This is consistent with some studies [ 29 , 32 ].…”

Section: Discussionsupporting

confidence: 94%

“…It was observed that the feed was the most influential factor. This result is in agreement with the literature, where Shahrajabian and Farahnakian [ 29 ] reached similar conclusions. They studied the effect of the feed and tool diameter on the surface roughness after machining.…”

Section: Discussionsupporting

confidence: 93%

Milling of an Al/CFRP Sandwich Construction with Non-Coated and TiAlN-Coated Tools

et al. 2020

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“…For the CFRP, the values of Ra and Rz parameters were influenced by the feed rate and, to a lesser extent, by the S × f z interaction. Similar conclusions have been reported in [30]. The milling strategy did not statistically significantly affect the surface roughness results in any of the analysed cases.…”

Section: Discussionsupporting

confidence: 88%

Surface Roughness after Milling of the Al/CFRP Stacks with a Diamond Tool

et al. 2021

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This study presents the results of research on the surface quality of hybrid sandwich structures after milling with a diamond blade tool. It identifies the effects of feed and machining strategy on the roughness and topography of the surface. It provides an analysis of Ra and Rz surface roughness parameters as well as Sp, Sz, and Sv surface topography parameters. The processed object was a two-layer sandwich structure consisting of aluminium alloy 2024 and CFRP (carbon fibre-reinforced polymer) composite. The minimum values of the Ra and Rz surface roughness parameters were obtained on the aluminium alloy surface, whereas the maximum values were obtained on the CFRP surface. The same was true for the 3D surface roughness parameters—the lowest values of Sp, Sz, and Sv parameters were obtained on the surface of the metal layer, while the highest values were obtained on the surface of the composite layer (the maximum value of the Sp parameter was an exception). A surface topography analysis has revealed a targeted and periodic pattern of micro-irregularities for the vast majority of the samples considered. The statistical analysis shows that the surface roughness of the aluminium alloy was only affected by the feed rate. For the CFRP, the feed rate and the interaction of milling strategy and feed rate (S × fz) had a statistically significant effect. The obtained results provide a basis for designing such sandwich element processing technology, for which differences in roughness and topography parameters for the component materials are lowest.

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“…Effects of feed per blade and helix angle on material height differences height differences could be recorded [35,36]. The results were also affected by the tool geometry [18]. A comparison of how the helix angle affected the material height difference values obtained during machining with variable parameters v c and f z shows that in most cases the lowest material height difference values were recorded when using a milling cutter with the highest value of the angle λ s .…”

Section: Resultsmentioning

confidence: 94%

“…They showed that the occurrence of the shape deviations on the surface of the workpiece depends on the cutting forces and the wear of the tool on the orientation of the fiber. In [18] it was found that the surface quality of CFRP composites after machining is influenced by the material and geometry of tool, but not by the radial depth of cut. Liu et al [19] drew a similar conclusion.…”

Section: Introductionmentioning

confidence: 99%

Effect of Machining Settings and Tool Geometry on Surface Quality After Machining of Al/CFRP Sandwich Structures

Doluk¹,

Rudawska²

2022

Adv. Sci. Technol. Res. J.

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The paper describes the effect of cutting parameters and tool geometry on the surface quality after machining of an Al/ CFRP (aluminium alloy/ Carbon Fibre Reinforced Plastics) sandwich structure. A two-layer sandwich structure made of an EN AW 2024 aluminium alloy and Carbon Fibre Reinforced Plastics (CFRP) was examined. The experiment used the process of peripheral milling. The experiment investigated the effects of cutting speed (v c ), feed per blade (f z ) and helix angle (λ s ) on surface quality as defined by differences in the height of materials. It was also analysed how the machining conditions described above affected the values of cutting force components. In the experimental stage of the study, uncoated, double-bit carbide mill cutters with working diameter D c = 12 mm and a variable helix angle (λ s = 20°, λ s = 35°, λ s = 45°) were used. The results have shown that cutting parameters and tool geometry do affect the surface quality and cutting forces after milling of the sandwich structure. The lowest material height difference was achieved when machining with the helix angle λ s = 45°, cutting speed v c = 300 m/min and feed per blade f z = 0.08 mm/blade. The highest material height difference occurred after machining under the following conditions: v c = 300 m/min, f z = 0.08 mm/min, λ s = 20°. The minimum cutting force value was obtained for cutting parameters: v c = 80 m/min, f z = 0.08 mm/blade during milling with the helix angle λ s = 45°. The maximum cutting force was recorded during machining with the helix angle λ s = 20˚, cutting speed v c = 400 m/min and feed per blade f z = 0.08 mm/blade.

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Multi-constrained optimization in ball-end machining of carbon fiber-reinforced epoxy composites by PSO

Cited by 7 publications

References 17 publications

Milling of an Al/CFRP Sandwich Construction with Non-Coated and TiAlN-Coated Tools

Milling of an Al/CFRP Sandwich Construction with Non-Coated and TiAlN-Coated Tools

Surface Roughness after Milling of the Al/CFRP Stacks with a Diamond Tool

Effect of Machining Settings and Tool Geometry on Surface Quality After Machining of Al/CFRP Sandwich Structures

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