Investigation of the effects of alumina nanoparticles on spur gear surface roughness and hob tool wear in hobbing process

Khalilpourazary, Saman; Meshkat, Seyyed Salar

doi:10.1007/s00170-013-5591-8

Cited by 28 publications

(12 citation statements)

References 23 publications

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“…The influence of lubricants including both nanoparticles, and none in gear hobbing of spur gears on tool wear and tooth surface roughness was investigated in Ref. [16]. Gravel [17] applied newly developed software to simulate the cutting procedure in hobbing and generation grinding.…”

Section: Literature Reviewmentioning

confidence: 99%

Improvements in the micro tooth surface topography of hobbed spur and helical gears

Simon

2018

J Braz. Soc. Mech. Sci. Eng.

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A new model of the gear hobbing process is presented in this paper to determine the micro tooth surface topography in spur and helical gears. The model is based on the generation of tooth surfaces by successive cuts of the finite number of hob teeth, as they come into interaction with the gear tooth. For every relative position of the hob and the gear, an analysis is carried out to find the active cutting edge points which generate the gear tooth surface. Repeating this procedure for all the selected gear tooth surface points, the micro topography of the gear tooth surface is determined. Therefore, the developed method determines the deviations of the manufactured tooth surface from the theoretical tooth surface of spur and helical gears. The method is applied to improve the micro tooth surface topography of spur and helical gears, namely to reduce the deviations of the hobbed tooth surface. Spur and helical gear examples are used to demonstrate the effectiveness of the method.

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Section: Literature Reviewmentioning

confidence: 99%

Improvements in the micro tooth surface topography of hobbed spur and helical gears

Simon

2018

J Braz. Soc. Mech. Sci. Eng.

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“…Several parameters were investigated by Mao et al, on AISI 52100 steel using water as cutting fluid/coolant embedded with alumina nanoparticles, which benefitted in terms of optimizing nozzle angle to gain minimized grinding force and roughness [9]. Other researchers like Khalil et al, [10] and Setti et al, [11] conducted experimentation using alumina nanoparticles to reduce tool wear during turning and reduction of coefficient of friction for grinding of Ti-6Al-4V respectively. Usage of copper nanoparticles to prepare nanofluid has also proven to be beneficial, to enhance thermal conductivity of the fluid as per Chol.…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity Enhancement by Al2O3@Cu, core@shell Nanoparticle Suspensions in Nanofluid Coolant

Kulkarni¹,

Kulkarni²,

Nadakatti³

et al. 2019

ACSM

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The objective of this research work is to synthesize Alumina@Copper, core@shell nanoparticles suspended nanofluid coolant, possessing high thermal conductivity. The Alumina@Copper nanoparticles were synthesized by two step chemical process. The methodology used to synthesize core@shell nanoparticles includes the synthesis of base alumina nanoparticles by sol-gel method in first step, which was coated with a thin shell of copper using electroless plating technique. The study investigates thermal conductivity enhancement of prepared nanofluid coolant, upon suspension of these nanoparticles for the selected volume of Strub Vulcan Futura coolant oil. Nanoparticles addition to the coolant oil was 0.025 % to 0.3 % by weight. Results indicated that, alumina@copper nanoparticles addition enhanced the thermal conductivity value up to 23.39 %. Results were validated using Hamilton and Crosser (HC) theoretical model assuming nanoparticles to be spherical. An empirical correction factor was applied for HC model which fits the thermal conductivity values to justify the deviation. The findings of this research may serve for faster heat dissipation during any metal cutting operation, since the synthesized nanofluid coolant possesses enhanced thermal conductivity.

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“…The effect of lubricants containing alumina (Al 2 O 3 ) nanoparticles on smoothness of gear surface manufactured by the hobbling process were studied by Khalilpourazari et al. 12 zThe results showed the suitable effect of alumina nanoparticles on the surface. Zhu et al.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of CuO and AL₂O₃ nanolubricants on the surface roughness in the forging process of aluminum alloy

Alimirzaloo

SheydayiGurchinQaleh

Keshtiban

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Lubrication is an essential factor in the metal forming processes such as forging, since it leads to reducing friction at contact surfaces and increasing the surface quality of the forged parts. In order to create desirable tribological properties in the base lubricants, various metal oxide nanoparticles are mostly used as additives. In the present study, the effects of the nanolubricants made by copper oxide (CuO) and alumina (AL2O3) nanoparticles on the surface quality of the forging process have been investigated. The effects of the nanolubricants have been compared with the graphite as a conventional lubricant. Upsetting forging operation of a ring shape workpiece was used for evaluating the lubricants. Experiments were designed and analyzed using Taguchi method and analysis of variance. Results show that the nanolubricants cause a significant improvement on the surface roughness compared to conventional lubricants. Best condition is obtained when 0.8 wt% of CuO nanoparticles is added in paraffin lubricant. Compared with the case of base lubricants with no additives, roughness reduced by 41% and 33% for paraffin and oil10, respectively. Also, the surface roughness decreased by 496% and 235% compared with dry graphite powder and paraffin with 25% graphite, correspondingly.

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Investigation of the effects of alumina nanoparticles on spur gear surface roughness and hob tool wear in hobbing process

Cited by 28 publications

References 23 publications

Improvements in the micro tooth surface topography of hobbed spur and helical gears

Improvements in the micro tooth surface topography of hobbed spur and helical gears

Thermal Conductivity Enhancement by Al2O3@Cu, core@shell Nanoparticle Suspensions in Nanofluid Coolant

Investigation of the effect of CuO and AL₂O₃ nanolubricants on the surface roughness in the forging process of aluminum alloy

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Investigation of the effects of alumina nanoparticles on spur gear surface roughness and hob tool wear in hobbing process

Cited by 28 publications

References 23 publications

Improvements in the micro tooth surface topography of hobbed spur and helical gears

Improvements in the micro tooth surface topography of hobbed spur and helical gears

Thermal Conductivity Enhancement by Al2O3@Cu, core@shell Nanoparticle Suspensions in Nanofluid Coolant

Investigation of the effect of CuO and AL2O3 nanolubricants on the surface roughness in the forging process of aluminum alloy

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Product

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Investigation of the effect of CuO and AL₂O₃ nanolubricants on the surface roughness in the forging process of aluminum alloy