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Sensors 2019, 19(3), 725; https://doi.org/10.3390/s19030725

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

School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310005, China
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Received: 4 January 2019 / Revised: 28 January 2019 / Accepted: 30 January 2019 / Published: 11 February 2019
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Abstract

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. View Full-Text
Keywords: Grinding cutting force model; Disc Wheel; Effective grits’ number; Piezoelectric sensors Grinding cutting force model; Disc Wheel; Effective grits’ number; Piezoelectric sensors
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Ni, J.; Feng, K.; Al-Furjan, M.; Xu, X.; Xu, J. Establishment and Verification of the Cutting Grinding Force Model for the Disc Wheel Based on Piezoelectric Sensors. Sensors 2019, 19, 725.

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