scholarly journals Establishment and Verification of the Cutting Grinding Force Model for the Disc Wheel Based on Piezoelectric Sensors

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 725 ◽  
Author(s):  
Jing Ni ◽  
Kai Feng ◽  
M.S.H. Al-Furjan ◽  
Xiaojiao Xu ◽  
Jing Xu
Keyword(s):  
Cutting Force ◽  
Grinding Force ◽  
Piezoelectric Sensors ◽  
Force Model ◽  
Arc Length ◽  
Cutting Force Model ◽  
Grinding Force Model ◽  
Proposed Model ◽  
Experimental Findings ◽  
Contact Arc

In this paper, a new model of cutting grinding force for disc wheels is presented. Initially, it was proposed that the grinding cutting force was formed by the grinding force and cutting force in combination. Considering the single-grit morphology, the single-grit average grinding depth, the effective number of grits, and the contact arc length between the grit and the workpiece comprehensively, the grinding force model and the cutting force model were established, respectively. Then, a universal grinding cutting force model was optimized by introducing the effective grit coefficient model, dependent on the probability statistical method and the grit height coefficient model with Rayleigh’s distribution theory. Finally, according to the different proportions of the grinding force and cutting force, the grinding cutting force model, with multi-particles, was established. Simulation and experimental results based on piezoelectric sensors showed that the proposed model could predict the intermittent grinding cutting force well. Moreover, the inclusion of the grit height coefficient and the effective grits number coefficient improved the modeling accuracy. The error between the simulation and experimental findings in grinding cutting force was reduced to 7.8% in comparison with the traditional model. In addition, the grinding cutting force can be divided into three segments; increasing, steadiness, and decreasing, respectively found through modeling.

scholarly journals An Improved Cutting Force Model for Ultrasonically Assisted Grinding of Hard and Brittle Materials

2021 ◽  
Vol 11 (9) ◽  
pp. 3888
Author(s):  
Renke Kang ◽  
Jinting Liu ◽  
Zhigang Dong ◽  
Feifei Zheng ◽  
Yan Bao ◽  
...  
Keyword(s):  
Cutting Force ◽  
Cutting Forces ◽  
Experimental Studies ◽  
Brittle Materials ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Force Model ◽  
Cutting Force Model ◽  
Fillet Radius ◽  
Hard And Brittle Materials

Cutting force is one of the most important factors in the ultrasonically assisted grinding (UAG) of hard and brittle materials. Many theoretical and experimental studies show that UAG can effectively reduce cutting forces. The existing models for UAG mostly assume an ideal grinding wheel with abrasives in both the end and lateral faces to accomplish material removal, whereas the important role of the transition fillet surface is ignored. In this study, a theoretical cutting force model is presented to predict cutting forces with the consideration of the diamond abrasives in the end face, the lateral face, and the transition fillet surface of the grinding tool. This study analyzed and calculated the vibration amplitudes and the cutting forces in both the normal and tangential directions. It discusses the influences of the input parameters (rotation speed, feed rate, amplitude, depth and radius of transition fillet) on cutting forces. The study demonstrates that the fillet radius is an important factor affecting the grinding force. With an increase in fillet radius from 0.2 to 1.2 mm, the grinding force increases by 139.6% in the axial direction and decreases by 70% in the feed direction. The error of the proposed cutting force model is 10.3%, and the experimental results verify the correctness of the force model.

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.

Cutting Force Model for Diamond Cutting Microstructured Surfaces

2013 ◽  
Vol 325-326 ◽  
pp. 1460-1464 ◽  
Author(s):  
Hai Jun Zhang ◽  
Yan Hua Huang ◽  
Guo Li ◽  
Kai Du
Keyword(s):  
Cutting Force ◽  
Diamond Tool ◽  
Depth Of Cut ◽  
Force Model ◽  
Spring Back ◽  
Cutting Force Model ◽  
Diamond Cutting ◽  
Proposed Model ◽  
Microstructured Surfaces ◽  
Sharp Point

The depth of cut changed periodically along the contour of the cutting surfaces. The diamond tool of sharp point tip was used in diamond cutting microstructured surfaces with Fast Tool Serve (FTS). All reported the cutting force model were not suitable for accurately predicting cutting force. A cutting forces model concerned with edge radius, spring back and dynamic shear angle was proposed for diamond cutting microstructured surfaces. The model was verified with a series of experimental results. The results showed that the proposed model was able to exactly predict the cutting force.

A New Cutting Force Model for Micro-Milling and Determination of Optimal Cutting Parameters

2009 ◽  
Vol 83-86 ◽  
pp. 680-687 ◽  
Author(s):  
Shih Ming Wang ◽  
Zou Sung Chiang ◽  
Da Fun Chen ◽  
Yao Yang Tsai
Keyword(s):  
Cutting Force ◽  
Cutting Parameters ◽  
Micro Milling ◽  
Depth Of Cut ◽  
Machining Accuracy ◽  
Force Model ◽  
Cutting Force Model ◽  
Cutter Deflection ◽  
Proposed Model ◽  
Optimal Cutting Parameters

A new cutting force model of micro-milling was developed based on calculating the instantaneously projected area of cutting in this study. According to the rotation trajectory of cutting edge, the instantaneous cutting area projected to xy-plane was first divided into several portions and determined with rectangular integral. After the cutting coefficients were experimentally investigated, the cutting force of micro-milling with different cutting conditions can be determined. Because the developed cutting force was function of cutting parameters, such as spindle speed, feed rate, depth of cut, with taking the cutter deflection into account it was further used to the determine of optimal cutting parameters for obtaining better cutting efficiency and machining accuracy. To verify the proposed cutting force model and the way to determine the optimal cutting parameters, micro-milling experiments were conducted. The results have shown the feasibility of the proposed model and method.

3D Cutting Force Model of a Stinger PDC Cutter: Considering Confining Pressure and the Thermal Stress

2021 ◽  
Author(s):  
Chao Xiong ◽  
Zhongwei Huang ◽  
Huaizhong Shi ◽  
Ruiyue Yang ◽  
Xianwei Dai ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Cutting Force ◽  
Confining Pressure ◽  
Force Model ◽  
Cutting Force Model

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
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