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A new in-process material removal rate monitoring approach in abrasive belt grinding

  • Lijuan Ren
  • Guangpeng ZhangEmail author
  • Yuan Wang
  • Qian Zhang
  • Fei Wang
  • Yumei Huang
ORIGINAL ARTICLE
  • 62 Downloads

Abstract

Belt grinding is a material processing operation which is capable of producing parts to high dimensional accuracy, excellent finish surface, and surface integrity. Unlike turning or other metal cutting operations that use geometrically well-defined tools, belt grinding involves tool geometry and cutting actions that are not well defined. Therefore, it is quite difficult to obtain a comprehensive theoretical model to predict the grinding depth. As well known, the strain rate is very high in grinding with abrasive tools, which results in substantial heat produced in the shear zone. Sparks are produced when the hot chips thrown out during the process, get oxidized, and burn in the atmosphere. Spark is an inherent feature for most dry grinding process. An approach on material removal rate monitoring in belt grinding by spark field measurement is proposed. The size of the spark field is a visualized reflection of the number of chips instantaneous produced in grinding. Features of spark field related to the material removal rate are analyzed and quantified. With this method, the coupling between the grinding parameters is no need to be considered. Experimental results indicate that the changing of grinding parameters has a different impact on the feature values of the spark field. Feature values of the spark field, such as area, boundary, and density, show a tight correlation with the material removal rate. The resolution accuracy of spark features on the grinding depth is studied. The correct rate of the grinding depth identification can reach more than 95% for the area, and density features of the spark field with the resolution range greater than 10 μm. The analysis indicates that the proposed method is effective and easy-to-accomplish for material removal rate monitoring in belt grinding.

Keywords

Belt grinding Spark field Process monitoring Material removal rate 

Notes

Acknowledgments

This work was supported by the Shaanxi Province key projects (grant number 2017ZDXM-GY-133).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Lijuan Ren
    • 1
  • Guangpeng Zhang
    • 1
    Email author
  • Yuan Wang
    • 1
  • Qian Zhang
    • 1
  • Fei Wang
    • 2
  • Yumei Huang
    • 1
  1. 1.School of Mechanical and Precision Instrument EngineeringXi’an University of TechnologyXi’anChina
  2. 2.Hanjiang Machine Tool Co., Ltd.ShaanxiChina

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