Grinding force model of single abrasive grain based on variable friction coefficient

2010 ◽  
Author(s):  
Jicai Kuai ◽  
Huali Zhang ◽  
Feihu Zhang
Keyword(s):  
Friction Coefficient ◽  
Grinding Force ◽  
Force Model ◽  
Abrasive Grain ◽  
Grinding Force Model ◽  
Variable Friction

Theory and Experiment Study on the Grinding Force

2007 ◽  
Vol 24-25 ◽  
pp. 217-222
Author(s):  
Jian Hua Zhang ◽  
Pei Qi Ge ◽  
L. Zhang
Keyword(s):  
Grinding Force ◽  
Probability Method ◽  
Force Model ◽  
Force Analysis ◽  
Experiment Study ◽  
Statistical Probability ◽  
Abrasive Grains ◽  
Abrasive Grain ◽  
Grinding Force Model ◽  
Theory And Experiment

The grinding force was one of the most important parameters, almost related with all the parameters in grinding. In this paper, the grinding force model was established by a new method. The abrasive grains were analyzed using the statistical probability method. The abrasive grains were divided into two types, one was the cutting abrasive grain, and the other was contacting abrasive grain. The force analysis of a single abrasive grain was done. The grinding force model was established on the basis of the statistical probability method and the force analysis of a single abrasive grain. Theoretical analysis was verified by the experiment. The results indicated, the experimental results agree well with the theoretical prediction. The model can accurately predict the grinding force.

An improved robotic abrasive belt grinding force model considering the effects of cut-in and cut-off

2019 ◽  
Vol 37 ◽  
pp. 496-508 ◽  
Author(s):  
Sijie Yan ◽  
Xiaohu Xu ◽  
Zeyuan Yang ◽  
Dahu Zhu ◽  
Han Ding
Keyword(s):  
Grinding Force ◽  
Force Model ◽  
Belt Grinding ◽  
Abrasive Belt ◽  
Grinding Force Model

Investigation on the Grinding Force, Power and Heat Flux Distributions Along the Tooth Profile in Form Grinding of Gears

2016 ◽  
Author(s):  
Tan Jin ◽  
Jun Yi ◽  
Rui Cai
Keyword(s):  
Heat Flux ◽  
Gear Tooth ◽  
Grinding Force ◽  
Tooth Profile ◽  
Force Model ◽  
Contact Conditions ◽  
Local Contact ◽  
Grinding Force Model ◽  
Form Grinding ◽  
Grinding Power

This paper investigates the distributions of grinding force, power consumption and heat flux along the tooth profile in precision form grinding of gears. A semi-analytical grinding force model has been established considering the static and dynamic chip formation forces and also the sliding force. Variation of the local contact conditions between the wheel and gear flank along the gear tooth profile, including the local depth of cut, local wheel diameter, local wheel speed and also the equivalent wheel diameter has been analyzed. Combining the variation of local contact conditions with the semi-analytical grinding force model, the grinding force and power distributions along the gear tooth profile have been derived. The predicted values of grinding power under different wheel speeds, worktable speeds, radial grinding depths and different contact widths are compared with those experimentally obtained and the results show a reasonable agreement. The predicted grinding forces at different rolling angle positions under different grinding parameters show a good agreement when compared with those experimentally obtained. The heat flux distribution along the interface between the form grinding wheel and the gear flank in form gear grinding has been further calculated.

Mathematical Model of the Grinding Force With Account for Blunting of Abrasive Grains of the Grinding Wheel

2017 ◽  
Vol 139 (12) ◽  
Author(s):  
Dmitrii V. Ardashev ◽  
Aleksandr A. Dyakonov
Keyword(s):  
Forecast Model ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Force Model ◽  
Cyclic Loads ◽  
Workpiece Material ◽  
Stochastic Nature ◽  
Abrasive Grains ◽  
Working Surface ◽  
Abrasive Grain

The paper offers a simulation model of the grinding force with account for the current condition of the grinding wheel's working surface—the value of the abrasive grain blunting area. The model of blunting area takes into account various wear mechanisms for abrasive grains: the mechanical wear is realized on the provisions of the kinetic theory of the strength of a solid subjected to cyclic loads, and the physicochemical wear is based on the intensity of interaction between the abrasive and the treated material at grinding temperatures. The offered model of the grinding force takes into account the unsteady stochastic nature of the interaction between abrasive grains of the grinding wheel and the working surface and the intensity of workpiece material deformation resistance. The model is multifactorial and complex and can be realized by supercomputer modeling. The numerical implementation of the model was performed with application of supercomputer devices engaging parallel calculations. The performed experiments on measurement of the grinding force during circular grinding have shown a 10% convergence with the calculated values. The developed grinding force model can be used as a forecast model to determine the operational functionality of grinding wheel when used in varying technological conditions.

A Theoretical Model of Grinding Force and its Simulation

2013 ◽  
Vol 690-693 ◽  
pp. 2395-2402 ◽  
Author(s):  
De Lin Qin ◽  
Feng Wang ◽  
Fang Jian Xi ◽  
Zhi Feng Liu
Keyword(s):  
High Speed ◽  
Mutual Authentication ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Force Model ◽  
Force Coefficient ◽  
Element Analysis ◽  
Cylindrical Grinding ◽  
Grinding Force Model ◽  
Force Calculation

Aiming at the axle material 30CrMoA high speed cylindrical grinding force calculation problems, a consideration of plowing force grinding force model is established based on the Werner’s theory model of grinding force, and the friction force and plowing force coefficient is defined as variable parameters. On the basis of the finite element analysis software DEFORM-3D, a high speed cylindrical grinding simulation model method is presented.Through the theoretical value and simulation value contrast, a mutual authentication of grinding force model is proposed. According to the simulation analysis results of grinding force and grinding wheel speed, grinding depth and the relationship between the workpiece speed, theoretical and technical guidance for the grinding force calculation and the selection of grinding process parameters are provided.

The X-C Linkage Grinding Force Model in Cam Grinding

2016 ◽  
Vol 693 ◽  
pp. 1187-1194
Author(s):  
Xiu Mei Chen ◽  
Qiu Shi Han ◽  
Bao Ying Peng ◽  
Qi Guang Li
Keyword(s):  
Theoretical Basis ◽  
Mechanical Analysis ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Force Model ◽  
Grinding Force Model ◽  
Cam Profile ◽  
Contour Accuracy ◽  
Servo Tracking ◽  
Grinding Machine

In cam grinding process, the grinding force changes with the change of cam contour, and its change leads to create the error of X-C linkage servo-tracking position, all of the factors reduce the cam the contour accuracy. To improve the accuracy of the cam profile, and research the effect of X-C axis servo tracking, the key vector of grinding force to the position is proposed, in which the factors have been considered including the grinding depth, curvature change, cam width, length and other effects. According to the mechanical analysis of cam and grinding wheel, a cam grinding XC-axis grinding force model is established. With the flat-bottomed follower cam as an example, the grinding force of X axis and C axis is calculated. The cam grinding experiment was conducted in the grinding machine, the tangential grinding force and normal grinding force were obtained and the model was verified. The grinding force mathematical model of X-C linkage provides the theoretical basis for the servo tracking position of X-C linkage grinding.

scholarly journals A New Grinding Force Model for Micro Grinding RB-SiC Ceramic with Grinding Wheel Topography as an Input

Micromachines ◽  
2018 ◽  
Vol 9 (8) ◽  
pp. 368 ◽  
Author(s):  
Zhipeng Li ◽  
Feihu Zhang ◽  
Xichun Luo ◽  
Xiaoguang Guo ◽  
Yukui Cai ◽  
...  
Keyword(s):  
Brittle Fracture ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Force Model ◽  
Sic Ceramics ◽  
Grinding Force Model ◽  
Proposed Model ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Force Components

The ability to predict the grinding force for hard and brittle materials is important to optimize and control the grinding process. However, it is a difficult task to establish a comprehensive grinding force model that takes into account the brittle fracture, grinding conditions, and random distribution of the grinding wheel topography. Therefore, this study developed a new grinding force model for micro-grinding of reaction-bonded silicon carbide (RB-SiC) ceramics. First, the grinding force components and grinding trajectory were analysed based on the critical depth of rubbing, ploughing, and brittle fracture. Afterwards, the corresponding individual grain force were established and the total grinding force was derived through incorporating the single grain force with dynamic cutting grains. Finally, a series of calibration and validation experiments were conducted to obtain the empirical coefficient and verify the accuracy of the model. It was found that ploughing and fracture were the dominate removal modes, which illustrate that the force components decomposed are correct. Furthermore, the values predicted according to the proposed model are consistent with the experimental data, with the average deviation of 6.793% and 8.926% for the normal and tangential force, respectively. This suggests that the proposed model is acceptable and can be used to simulate the grinding force for RB-SiC ceramics in practice.

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