Abstract
Accurate theoretical analysis and modeling of instantaneous uncut chip thickness (IUCT) play a crucial role in the cutting force prediction of the micro-milling process. Tool wear and tool runout have a significant influence on the IUCT and become key factors to be considered. An IUCT model covering the influence of tool runout and tool flank wear considering tool edge radius is proposed. Based on this the prediction model of the cutting force is constructed in the micro-end milling process. Firstly, an actual tool radius model considering tool flank wear and tool edge radius is analyzed. The IUCT model is established by constructing the trochoidal trajectories of the current cutting edge and all cutting edges in the previous cycle considering tool flank wear and tool runout. Moreover, tool flank wear and tool runout are considered in the determination of cutter-workpiece engagement and the calibration of cutting force coefficients. Effectiveness of the established cutting force model is verified by micro milling experiments and statistical analysis. Results show that tool flank wear has a significant effect on the cutting forces of the three directions, and the influence of tool flank wear on the IUCT is small in a certain range. This work for predicting the IUCT and cutting force sheds new light on revealing various derived physical phenomena such as deformation, heat, and stress in the micro-cutting process.
Highlights
The instantaneous uncut chip thickness model covering the influence of tool runout and tool flank wear considering tool edge radius is proposed.
The micro-milling cutting force based on instantaneous uncut chip thickness is predicted from the mechanism level.
Effectiveness of the established cutting force model is verified by micro-milling experiments and statistic analysis.
The influence of tool flank wear on the instantaneous uncut chip thickness and cutting force is analyzed.
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The measuring data in our paper are available from the corresponding author by request, and other related materials can also be obtained from the corresponding author.
Code availability
The code for cutting force model during the study is available from the corresponding author by request.
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Funding
This research was supported by the National Natural Science Foundation of China (No. 51605346). Key research and development program of Hubei Province (2022BAA059).
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**anyin Duan, Kunpeng Zhu, and Shuaishuai Gao proposed the method of the paper. Kunpeng Zhu and Yu Zhang provided the experimental settings and data. Shuaishuai Gao and **anyin Duan wrote the first draft of the article and completed the programming prediction and experimental data analysis. Shuaishuai Gao completed the modification and polish of the whole manuscript and drawing of all the figures and tables. **anyin Duan, Kunpeng Zhu and Yu Zhang made many constructive suggestions for the modeling, experiments and the writing of the whole paper. All authors have read and agreed to the published.
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This manuscript titled of Influence of tool flank wear with considering tool edge radius on instantaneous uncut chip thickness and cutting force in micro-end milling is original, it is not submitted to else journals simultaneously, and all authors agree to submit it to The International Journal of Advanced Manufacturing Technology. Moreover, this is a preliminary, novel research paper.
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Gao, S., Duan, X., Zhu, K. et al. Influence of tool flank wear considering tool edge radius on instantaneous uncut chip thickness and cutting force in micro-end milling. Int J Adv Manuf Technol 133, 1639–1650 (2024). https://doi.org/10.1007/s00170-024-13794-3
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DOI: https://doi.org/10.1007/s00170-024-13794-3