Abstract
The polishing process is complex and influenced by various parameters, making the construction of predictive models for polishing quality a significant area of research. Existing models primarily focus on four parameters: contact force, rotational speed, feed rate, and sandpaper grit, while neglecting the impact of initial surface quality, resulting in limited accuracy and applicability. This paper proposes a method for constructing a surface roughness prediction model that considers initial surface quality, which consists of two parts: First, through experimental polishing tests on workpieces with various initial surface qualities, it was shown that the initial surface quality has a significant effect on the final polishing result; second, the initial surface quality is classified into three grades based on roughness values, and a prediction model for post-polishing surface roughness is constructed by integrating the initial surface quality and the four process parameters using response surface methodology. Finally, a series of polishing experiments with different parameter combinations obtained model prediction errors ranging from 3.40 to 11.44% (average 7.48%), verifying the practicality and generality of the proposed prediction model.











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Funding
This work was supported in part by the Natural Science Foundation of Guangdong Province (Grant No. 2023A1515011253), the Higher Education Institution Featured Innovation Project of the Department of Education of Guangdong Province (Grant No. 2023KTSCX138), the Offshore Wind Power Joint Fund Project of Guangdong Basic and Applied Basic Research Foundation (Grant No. 2024A1515240007), the Shaoguan City Support for Researchers Project (Grant No. 230330098033679), the Natural Science Foundation of Chongqing (Grant No. CSTB2022NSCQMSX1386), and the Shaoguan University Ph.D. Initiation Project (Grant No. 440-9900064602).
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Li, J., Guan, Y., Bi, H. et al. Predictive surface roughness model for robotic polishing considering initial surface quality. Int J Adv Manuf Technol (2025). https://doi.org/10.1007/s00170-025-15235-1
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DOI: https://doi.org/10.1007/s00170-025-15235-1