Detailed modeling of cutting forces in grinding process considering variable stages of grain-workpiece micro interactions

Li, Hao Nan; Yu, Tianbiao; Wang, Zi Xuan; Zhu, Lei; Wang, Wan Shan

doi:10.1016/j.ijmecsci.2016.11.016

Cited by 130 publications

(36 citation statements)

References 52 publications

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“…The total grinding force consists of 3 components, namely rubbing, ploughing and cutting [32]. Figure 4a shows the evolution of the grinding forces during a grinding simulation.…”

Section: Grinding Forcesmentioning

confidence: 99%

Fractal roughness effects on nanoscale grinding

Papanikolaou

Salonitis

2019

Applied Surface Science

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Three-dimensional Molecular Dynamics simulations have been performed to investigate the effects of fractal roughness on nanoscale grinding. The first part of this investigation focuses on the effects of the workpiece rough top surface on the grinding process characteristics, with special emphasis placed on the friction coefficient, the grinding forces and the subsurface temperature. The second part focuses on the alternation of the aforementioned parameters due to the rough abrasive contact surface. Rough surface profiles have been generated using the multivariate Weierstrass-Mandelbrot function while the abrasive has been modelled as a trapezoid. The irregular surface topography has been controlled by tuning the value of the fractal dimension. The aforementioned experiments have been repeated for various values of the cutting depth. Our results indicate that the grinding process parameters are mainly dependent on the cutting depth as well as the abrasive lower surface profile, which also defines the interface contact area between the workpiece and the abrasive, rather than the topography of the workpiece top surface.

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“…The total grinding force consists of 3 components, namely rubbing, ploughing and cutting [32]. Figure 4a shows the evolution of the grinding forces during a grinding simulation.…”

Section: Grinding Forcesmentioning

confidence: 99%

Fractal roughness effects on nanoscale grinding

Papanikolaou

Salonitis

2019

Applied Surface Science

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“…So far, SEC models are characterized by the macro level during iteration between workpiece and grinding wheel to predict the average value of chip thickness. A recent work developed the model of normal and tangential forces by considering the microinteraction between workpiece and grinding tool [20].…”

Section: Introductionmentioning

confidence: 99%

Model Based on an Effective Material-Removal Rate to Evaluate Specific Energy Consumption in Grinding

et al. 2019

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Grinding energy efficiency depends on the appropriate selection of cutting conditions, grinding wheel, and workpiece material. Additionally, the estimation of specific energy consumption is a good indicator to control the consumed energy during the grinding process. Consequently, this study develops a model of material-removal rate to estimate specific energy consumption based on the measurement of active power consumed in a plane surface grinding of C45K with different thermal treatments and AISI 304. This model identifies and evaluates the dissipated power by sliding, ploughing, and chip formation in an industrial-scale grinding process. Furthermore, the instantaneous positions of abrasive grains during cutting are described to study the material-removal rate. The estimation of specific chip-formation energy is similar to that described by other authors on a laboratory scale, which allows to validate the model and experiments. Finally, the results show that the energy consumed by sliding is the main mechanism of energy dissipation in an industrial-scale grinding process, where it is denoted that sliding energy by volume unity decreases as the depth of cut and the speed of the workpiece increase.

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“…On the other hand, (a) abrasive type and size and (b) disc binder are the two most influencing variables. Taking this into account, there are two abrasive disc types for manual machines, (a) those with metal body that use diamond as abrasive, typically used for cutting masonry, marble, and ceramics [1,2], and (b) those usually including aluminum oxide (Al 2 O 3 ) or silicon carbide (Si 3 N 4 ) as grit materials, commonly used for cutting metals [3,4].…”

Section: Introductionmentioning

confidence: 99%

Abrasive Disc Performance in Dry-Cutting of Medium-Carbon Steel

Ortega

Martynenko

Perez

et al. 2020

Metals

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Abrasive-cutting processes are widely used to obtain semi-finished products from metal bars, slabs, or tubes. Thus, the abrasive cutting-off process is applied when requiring precision cutting and productivity at a moderate price. Cut-off tools are discs composed of small abrasive particles embedded in a bonding material, called the binder. This work aims to compare the cutting performance of discs with different composition, in dry cutting of steel bars. To do that, disc wear was measured and disc final topography was digitalized in order to determine both disc surface wear patterns and if the abrasive particles bonding into the binder matrix was affected. In addition, X-Ray inspection gave information about the abrasive grit-binder bonding. Therefore, the method here presented allows identifying discs with a superior abrasive-cutting capability, by combining profilometry and tomography to define micrometrical aspects, grit size, and binder matrix structure. Results led to the conclusion that discs with high grit size and protrusion, high grit retention by bond material, and closer mesh of fiberglass matrix binder were the optimal solution.

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Detailed modeling of cutting forces in grinding process considering variable stages of grain-workpiece micro interactions

Cited by 130 publications

References 52 publications

Fractal roughness effects on nanoscale grinding

Fractal roughness effects on nanoscale grinding

Model Based on an Effective Material-Removal Rate to Evaluate Specific Energy Consumption in Grinding

Abrasive Disc Performance in Dry-Cutting of Medium-Carbon Steel

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