Effect of machining parameters on cutting force and surface roughness of in situ Al–4.5%Cu/TiC metal matrix composites

Kumar, Anand; Mahapatra, Manas Mohan; Jha, Pradeep Kumar

doi:10.1016/j.measurement.2013.11.026

Cited by 82 publications

(30 citation statements)

References 23 publications

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“…5a, b, respectively. Unlike the inverse proportional variation trend of surface roughness with respect to spindle speed observed in the previous research conducted on the conventional turning of Al/SiC and Al/ Cu-TiC MMCs [30,31], a proportional relation was found between surface roughness and spindle speed for Mg/Ti MMCs. This could be due to the continuous semi-circular tool marks which are known as side flow in turning, on machined surface in full slots milling as a result of squeeze between the corner edges of endmill and the material at the relatively small uncut chip thickness to cutting edge radius ratio in micro-milling.…”

Section: Surface Roughnesscontrasting

confidence: 88%

Micro-machinability of nanoparticle-reinforced Mg-based MMCs: an experimental investigation

Teng

Huo

Wong

et al. 2016

Int J Adv Manuf Technol

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As a composite material with combination of low weight and high engineering strength, metal matrix composites (MMCs) have been utilised in numerous applications such as aerospace, automobile, and bioengineering. However, MMCs are recognised as difficult-to-cut materials due to their improved strength and high hardness of the reinforcing particles. This paper presents an experimental investigation on micro-machinability of Mg-based MMCs reinforced with Ti and TiB 2 nano-sized particles. The tool wear of AlTiN-coated micro-end mills was investigated. Both abrasive and chip adhesion effect were observed on the main cutting edges, whilst the reinforcement materials and volume fraction play an important role in determining the wear type and severity. The influence of cutting parameters on the surface morphology and cutting force was studied. According to analysis of variance (ANOVA), depth of cut and spindle speed have significant effect on the surface roughness. The specific cutting energy, surface morphology and the minimum chip thickness was obtained and characterised with the aim of examining the size effect. Furthermore, higher cutting force and worse machined surface quality were obtained at the small feed per tooth ranging from 0.15 to 0.5 μm/tooth indicating a strong size effect. Overall, Mg/TiB 2 MMCs exhibit better machinability.

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Section: Surface Roughnesscontrasting

confidence: 88%

Micro-machinability of nanoparticle-reinforced Mg-based MMCs: an experimental investigation

Teng

Huo

Wong

et al. 2016

Int J Adv Manuf Technol

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“…Higher cutting speed results in increasing the temperature in cutting zone which consequently reduce the strength of BUE [40] and decrease the generation and separation cycle time. This finding is in line with Kumar et al [41] who reported that surface roughness and BUE are influenced by cutting speed in Al-4.5%Cu/TiC metal matrix composites. There is adequate time to establish atomic bonding between chip and tool due to large contact time between tool and chip at lower cutting speed and subsequently, increase the tendency to form BUE.…”

Section: Surface Roughnesssupporting

confidence: 92%

Evaluation of cutting force and surface roughness in the dry turning of Al–Mg2Si in-situ metal matrix composite inoculated with bismuth using DOE approach

2015

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“…However, the research about high speed cutting of magnesium alloy is very few. The tools about cutting steels and other alloys have been commonly reported in previous reports [9,10], the temperature variation during the cutting process was referred [11], the optimization of surface roughness and cutting force were also studied [12,13], and how the cutting parameters affect cutting chip, roughness and residual stress were further studied [14,15]. However, the high speed cutting of Mg alloys still lacks systematic study and deepen analysis.…”

Section: Introductionmentioning

confidence: 99%

High speed cutting of AZ31 magnesium alloy

Liu

et al. 2016

Journal of Magnesium and Alloys

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Using LBR-370 numerical control lathe, high speed cutting was applied to AZ31 magnesium alloy. The influence of cutting parameters on microstructure, surface roughness and machining hardening were investigated by using the methods of single factor and orthogonal experiment. The results show that the cutting parameters have an important effect on microstructure, surface roughness and machine hardening. The depth of stress layer, roughness and hardening present a declining tendency with the increase of the cutting speed and also increase with the augment of the cutting depth and feed rate. Moreover, we established a prediction model of the roughness, which has an important guidance on actual machining process of magnesium alloy.

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Effect of machining parameters on cutting force and surface roughness of in situ Al–4.5%Cu/TiC metal matrix composites

Cited by 82 publications

References 23 publications

Micro-machinability of nanoparticle-reinforced Mg-based MMCs: an experimental investigation

Micro-machinability of nanoparticle-reinforced Mg-based MMCs: an experimental investigation

Evaluation of cutting force and surface roughness in the dry turning of Al–Mg2Si in-situ metal matrix composite inoculated with bismuth using DOE approach

High speed cutting of AZ31 magnesium alloy

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