From the microscopic interaction mechanism to the grinding temperature field: An integrated modelling on the grinding process

Jiang, Jingliang; Ge, Peng; Sun, Shufeng; Wang, Dexiang; Wang, Yuling; Yang, Yong

doi:10.1016/j.ijmachtools.2016.08.004

Cited by 73 publications

(25 citation statements)

References 46 publications

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“…ensure that the subsequent heat flux simulation using FEM is successful, the heat source model from Jiang et al was used [20]. Their model describes the division of the contact surface along the z-direction into n segments of the same length and calculates the corresponding heat flux for each of these segments.…”

Section: Mathematical Heat Flux Modelmentioning

confidence: 99%

“…Thus, the heat flux, which is generated in the segment l i , is calculated according to Jiang et al [20] using (13) Table 3 Technical specifications and material properties of the wet grinding experiments of a 90 • -V-profiled workpiece with a Baystate A60H16VCF2 grinding wheel It is assumed that the model of Guo et al provides the average energy partitioning and its proven triangular heat flow model (pictured in Fig. 4).…”

Section: Mathematical Heat Flux Modelmentioning

confidence: 99%

See 1 more Smart Citation

3D modeling and simulation of thermal effects during profile grinding

Schieber

Hettig

Zaeh

et al. 2020

Prod. Eng. Res. Devel.

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A new heat transfer model for profile grinding was developed to analyze distortions caused by residual tensile stresses in linear guide rails. The simulative analysis of the thermal effects caused by a non-uniform heat source on the surface using the finite element method depends on an accurate representation of the locally variable contact area. The complexity of the V-groove profile disqualifies a 2-dimensional simulation approches so far used in the literature. This paper focuses on the redefinition of these mathematical relationships of the process parameters and the resulting heat flux. The heat flux model is adapted to the geometry of the workpiece depending on the grinding parameters and approximating the V-groove of a linear guide rail. This 3-dimensional modeling allows a better understanding of the thermo-metallurgical effects that occur during the grinding process. Furthermore, the calculation of the internal stresses induced into the workpiece material through the grinding process is possible. The simulation model results in a generally valid model for the analysis of distortions. In order to confirm the validity of the new heat flux profile, a comparison of the different finite element simulation results was made and experiments under wet grinding conditions were conducted. The results show that the newly developed grinding process model allows a more accurate prediction of workpiece distortion caused by grinding forces and temperatures. This research also offers a new approach to a method based on a 2-dimensional implementation developed in the literature for predicting the distortions of linear guide rails and a derivation of possible simulation-based compensation strategies.

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Section: Mathematical Heat Flux Modelmentioning

confidence: 99%

Section: Mathematical Heat Flux Modelmentioning

confidence: 99%

3D modeling and simulation of thermal effects during profile grinding

Schieber

Hettig

Zaeh

et al. 2020

Prod. Eng. Res. Devel.

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show abstract

“…Besides the use of finer grits, harder grade and denser structure grinding wheel result in increase of grinding forces. Jiang et al [15] modeled the microscopic interaction between the workpiece and the grinding wheel, taking into account the parameters such as topography of the grinding wheel, the distribution of grain, and the mechanical properties of the workpiece which were not integrated in the previous models.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Vibration Condition in Flat Surface Grinding Process

Gasagara

Jin

Uwimbabazi

2020

Shock and Vibration

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This article presents a new model of the flat surface grinding process vibration conditions. The study establishes a particular analysis and comparison between the influence of the normal and tangential components of grinding forces on the vibration conditions of the process. The bifurcation diagrams are used to examine the process vibration conditions for the depth of cut and the cutting speed as the bifurcation parameters. The workpiece is considered to be rigid and the grinding wheel is modeled as a nonlinear two-degrees-of-freedom mass-spring-damper oscillator. To verify the model, experiments are carried out to analyze in the frequency domain the normal and tangential dynamic grinding forces. The results of the process model simulation show that the vibration condition is more affected by the normal component than the tangential component of the grinding forces. The results of the tested experimental conditions indicate that the cutting speed of 30 m/s can permit grinding at the depth of cut up to 0.02 mm without sacrificing the process of vibration behavior.

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“…• Machining stability is the best and the worst when the phase difference between adjacent continuous waviness generated by grit-workpiece interaction takes values of π/2 and 3π/2 respectively. [5] and [6], many studies on the optimization of the surface topography characteristics of abrasive wheels [7] and machining conditions have been conducted based on minimal energy consumption or a material removal mechanism under different grinding phases [8] to [10]. The relevant experiments are also performed to validate these research findings.…”

Section: Introductionmentioning

confidence: 99%

Effect of Energy Consumption in the Contact Zone on Machining Condition Optimization in Precision Surface Grinding

Chen¹,

Chen²,

Xu³

et al. 2018

SV-JME

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The instantaneous energy consumption in the grit-material interaction zone is an important indicator to represent the efficiency of grinding. In contrast to methods based on chip crack and formation or energy consumption from experimental measurement, this paper presents an improved differential model of energy consumption that takes account of dynamic grinding force, forced-vibration induced by the eccentrically grinding wheel rotation, and the phase difference between adjacent regenerative surface waviness. Furthermore, the vibratory amplitude and relevant frequency elements of a wheel-workpiece coupled system are analysed to optimize the key machining conditions involved in spindle speed, pack density of abrasive wheel and effective cutting space of adjacent contour grits in discrete transverse plane. It demonstrates that machining stability is the best when the phase difference value is π/2 between continuously formed adjacent waviness generated by grit-workpiece interaction, i.e. the calculated value of instantaneous grinding energy consumption reaches its maximum value. In comparison to stable situations, an unstable grinding process is excited when the phase difference value is 3π/2, i.e. micro-grinding force and vibration reinforce each other. It proves that a satisfied and stable grinding process can be controlled in real-time or in-situ by means of utilizing combination of optimal parameters, such as spindle speed, effective pack density, and the cutting space of abrasive grits. The presented mechanism is practical and can provide good guidance for further studies on machine-tool dynamics, time-domain or frequency-domain analysis of grinding vibration, and then on depth distribution of cut and ground surface accuracy.

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From the microscopic interaction mechanism to the grinding temperature field: An integrated modelling on the grinding process

Cited by 73 publications

References 46 publications

3D modeling and simulation of thermal effects during profile grinding

3D modeling and simulation of thermal effects during profile grinding

Modeling of Vibration Condition in Flat Surface Grinding Process

Effect of Energy Consumption in the Contact Zone on Machining Condition Optimization in Precision Surface Grinding

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