A Performance Comparison Study of Uncoated and TiAlN Coated Carbide End Mill on Machining of the Al-35Zn Alloy

Bayraktar, Şenol; Hekìmoğlu, Ali Paşa; Turgut, Yakup; Haciosmanoglu, Murat

doi:10.1088/1757-899x/295/1/012013

Cited by 6 publications

(6 citation statements)

References 21 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%

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%

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

et al. 2020

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“…Based on this it can be stated that surface roughness is improved by 35%. This is a newly reinforced composite (10% reinforced pista shell powder composites) required to get improved surface finish and lower depth of cut for this composite (Bayraktar et al 2018). There is no opposite research analysis observed in surface roughness findings.…”

Section: Discussionmentioning

confidence: 92%

A Comparative Analysis on Surface Roughness of Plain Epoxy Composite with Reinforcement of 10 wt% of Pista Shell Particles Novel Composite using CNC Machining

2022

pnr

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The objective of this paper is to investigate the surface roughness of 10% of pista shell powder reinforced epoxy composite compared to plain epoxy resin composite. Materials and Methods: Experiment was done by forming two groups namely Group 1 (Plain Epoxy Resin composites) and Group 2 (10% of Pista shell powder reinforced epoxy composite). The sample size calculation was done using a G power calculated and pre-test power is 95%. The mean value and standard deviation are 0.5 and 0.1 for without filler and with filler was 0.2 and 0.06 respectively and 16 samples per group were taken for study. Heavy calcium carbonate is contained in the pista shell. SPSS software tool was used for statistical analysis. G power is taken as 80%. Results: It was obtained from the results that the surface roughness of the plain epoxy resin composite was 0.443µm and for 10% of pista shell powder reinforced epoxy composite it was 0.661µm. The significance value which was obtained from the statistical value analysis was P=0.029; p<0.05 and hence there is no significant variation observed between the groups. Conclusion: Within the limitations of the studies, it was found that the surface roughness of novel polymer composite for 10% of pista shell reinforcement epoxy composite was better than the plain epoxy resin composite by approximately 35 percent.

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“…Constant cutting speed (120 m/min), feed (0.15 mm/ rev) and depth of cut (15 mm) were used as cutting parameters. These parameters were determined by considering the studies in the literature [29][30][31][32][33][34][35]. The technical characteristics of the drill are given in Table 2.…”

Section: Machining Testsmentioning

confidence: 99%

Machinability properties of Al–7Si, Al–7Si–4Zn and Al–7Si–4Zn–3Cu alloys

Bayraktar

Afyon

2020

J Braz. Soc. Mech. Sci. Eng.

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Al-7Si, Al-7Si-4Zn, Al-7Si-4Zn-3Cu alloys were produced by permanent mold casting method to investigate the effects of copper and zinc additions on the machinability properties of Al-7Si alloy. The structural and mechanical properties of the produced alloys were investigated with conventional methods. Machinability properties of these alloys were determined by turning, and they were associated with structural and mechanical properties of the alloys. Machinability experiments were carried out in CNC vertical machining center under dry cutting conditions using uncoated carbide drill and constant cutting speed (120 m/min), feed (0.15 mm/rev) and depth of cut (15 mm) values. The microstructure of Al-7Si binary alloy was observed to be composed of aluminum-rich α phase, primary silicon crystals and eutectic Al-Si phase. The addition of 4% Zn to the Al-7Si alloy did not form a different phase in the microstructure. However, Al 2 Cu intermetallic phase was formed by addition of 3% Cu. While the hardness and tensile strength of the alloy increased, elongation to fracture significantly reduced. As a result of machinability experiments, it was observed that the minimum thrust force and surface roughness occurred in Al-7Si-4Zn-3Cu alloy, while the maximum built-up edge was observed during drilling of Al-7Si and Al-7Si-4Zn alloys. Microhardness value of machined surface in Al-7Si alloy was found to be the minimum while the maximum Al-7Si-4Zn-3Cu alloy was observed.

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A Performance Comparison Study of Uncoated and TiAlN Coated Carbide End Mill on Machining of the Al-35Zn Alloy

Cited by 6 publications

References 21 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

A Comparative Analysis on Surface Roughness of Plain Epoxy Composite with Reinforcement of 10 wt% of Pista Shell Particles Novel Composite using CNC Machining

Machinability properties of Al–7Si, Al–7Si–4Zn and Al–7Si–4Zn–3Cu alloys

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