Probabilistic Analysis of the Surface Grinding Process

Younis, Mahmoud; Alawi, H.

doi:10.1139/tcsme-1984-0031

Cited by 52 publications

(10 citation statements)

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“…Rayleigh distribution for the protrusion heights of abrasive grits was first proposed by Younis and Alawi. 14 It has a distinct superiority compared with normal distribution in chip formation, 15,16 and is further improved and validated by Hecker et al. 10 Therefore, the grits are assumed to conform to the Rayleigh distribution in this study.…”

Section: Analysis Of Grinding Forcementioning

confidence: 85%

Experimental study on force model in grinding of maraging steel 3J33

Guo

Shen

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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Grinding is always a complicated machining process for joint interaction of numerous random abrasive grits in different chip formation processes. Therefore, analysis of grinding force requires a more comprehensive insight on the grinding mechanisms. This paper is devoted to propose an analytical force model in grinding of maraging steel 3J33 based on the fact that grinding process is divided into three stages, namely rubbing, ploughing and cutting, in terms of grits working status. These three stages are determined by the chip thickness model that is assumed to conform to Rayleigh distribution, in which the rubbing stage is derived from Hertzian contact theory. The experimental coefficients in the force model are calibrated by performing a set of training tests. The predicted normal and tangential grinding forces of the developed model are compared with those obtained from validation tests, which show favorable agreement quantitatively. The contributions of the grinding force components in different grit–workpiece interaction stages are obtained from the model and theirs relationships with process parameters are discussed.

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Section: Analysis Of Grinding Forcementioning

confidence: 85%

Experimental study on force model in grinding of maraging steel 3J33

Guo

Shen

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…This is a typical characteristic in the UVAG of ceramics, and it should be considered in the comprehensive surface roughness model. Thereby, Rayleigh’s probability density function proposed by Younis and Alaw [ 23 ] was introduced to describe the penetration depth

as follows:

where

is a parameter that defines the probability density function completely and depends on the machining conditions.…”

Section: Development Of the Prediction Model Of The Surface Roughness In The Uvag Of Zirconia Ceramicsmentioning

confidence: 99%

Prediction of the Surface Roughness in Ultrasonic Vibration-Assisted Grinding of Dental Zirconia Ceramics Based on a Single-Diamond Grit Model

Xiao

2021

Micromachines

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Ultrasonic vibration-assisted grinding (UVAG) is regarded as a superior method for the fabrication of ceramic dentures, due to its outstanding performance in hard and brittle materials’ machining. The surface roughness of dentures has a critical effect on the bonding and wear performance between dentures and natural teeth. Accomplishing the prediction of surface roughness will promote the application of UVAG in dental restoration significantly. However, the investigation about surface roughness modeling in the UVAG of ceramics is limited. In this study, a comprehensive surface roughness model was proposed with the consideration of the diamond grits’ random distribution, brittle fracture removal, and ultrasonic vibration characteristics. Based on the indentation fracture removal mechanism, the material removal process was modeled. Rayleigh’s probability density function was introduced to characterize the random distribution of the grits. Besides, the ultrasonic vibration was considered via the analysis of the single-diamond grit motion. Finally, the comprehensive model was developed with the consideration of all the diamond grits. Afterward, the verification experiments were carried out. The experimental results agreed well with the model predictions. Therefore, the comprehensive model can be applied to evaluate the surface roughness and can provide an in-depth understanding of the surface formation in the UVAG of ceramics.

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“…When diamond cutting depth is less than a certain critical depth, cutting effect is not going to happen [15]. The grinding grain critical cutting depth can refer to the diamond cutting depth.…”

Section: Grinding Force Calculation Modelmentioning

confidence: 99%

The study for variable grinding depth to control plane grind-hardening layer depth distribution

Zhang

2015

Int J Adv Manuf Technol

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Heat flux changes in grind-hardening process resulting in uneven distribution of grind-hardening layer depth, making it more difficult to produce a hardened layer in the grinding cutting-in and cutting-out area, leading to uneven distribution of the hardening layer depth in grinding stable region. This paper firstly studied the grinding force. Secondly, grinding distortion is analyzed by thermal-mechanical coupling numerical analysis. The grinding distortion makes the actual grinding depth deeper. According to the distortion, the actual cutting depth can be concluded. The actual cutting depth affects the variation of grinding force. Thirdly, the relationship among grinding force, grinding distortion, and the distribution of the hardening layer depth is presented in the paper. At last, variable grinding cutting depth to control grinding force is put forward to improve the uniformity of the distribution of the hardening layer and is verified by experiment.

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Probabilistic Analysis of the Surface Grinding Process

Cited by 52 publications

References 0 publications

Experimental study on force model in grinding of maraging steel 3J33

Experimental study on force model in grinding of maraging steel 3J33

Prediction of the Surface Roughness in Ultrasonic Vibration-Assisted Grinding of Dental Zirconia Ceramics Based on a Single-Diamond Grit Model

The study for variable grinding depth to control plane grind-hardening layer depth distribution

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