Prediction of ball end milling forces based on special turning experiment data

  • Weijian Huang
  • Xi Li
  • Yanfen Zhang
  • Guangdong Liang
  • Weiwei Gao
ORIGINAL ARTICLE
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Abstract

In milling processes, the prediction of cutting forces plays an important role in machining quality improvement. A novel cutting force model for ball end mills is presented in this paper. The cutting forces acting on infinitesimal cutting edges are set as a binary function of inclination angle and uncut chip thickness in order to consider the local helix angle variation along the cutting edge. The function is obtained by surface fitting based on special turning experiment data. Two position vectors are presented for describing the machining states of the tool and calculating the uncut chip thickness and the tool contact area. The resultant cutting force is calculated by numerical integration of cutting forces acting on the engaged infinitesimal cutting edges. The predictions from the proposed model are verified by milling experiments.

Keywords

Ball end mill Cutting force Special turning experiment Binary function Two position vectors 

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Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (51075170). The authors would like to thank Yongjie Chen for providing the experimental equipment and Wenjun Li, Ning Li, Dong Zhang, and Ding Chen for their assistance with the experimental work.

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.National NC System Engineering Research Center, School of Mechanical Science and EngineeringHuazhong University of Science and TechnologyWuhanChina

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