## 5 Conclusions  
This paper mainly studies the influence of different cutting edge blunt radii and different micro-texture parameters on the milling temperature. The milling temperature is taken as the evaluation standard to establish the optimal combination parameters of the micro-pit texture and the blunt radius. It is found that the milling temperature first decreases and then increases with the increase of radius \(r_{c}\). Under the action of a blunt cutting edge, when the milling temperature is taken as the evaluation index, the optimal parameters of the micro-texture and the blunt edge are as follows: the diameter of the micro-circular pit is 40 \(\upmu\)m, the spacing between the micro-circular pits is 175 \(\upmu\)m, the distance from the cutting edge is 100 \(\upmu\)m, and the radius of the blunt cutting edge is 60 \(\upmu\)m. In addition, through conducting the simulation analysis and experimental verification of the milling process under the action of the blunt edge, the following four conclusions are drawn. First, when the texture parameters increase, the ability of the micro-round pit texture to capture chips is enhanced, which reduces the heat carried away by chips. However, as the micro-texture also has the  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Source** & **Degree of Freedom** & **Sum of Squares** & **Mean Square** & **F** \\ \hline Edge radius & 4 & 4369 & 1092.1 & 3.19 \\ Diameter of micro-pit & 4 & 1279 & 319.6 & 0.93 \\ Micro-pit spacing & 4 & 1885 & 471.4 & 1.38 \\ Distance from blade & 4 & 1911 & 477.7 & 1.39 \\ \hline \hline \end{tabular}
\end{table}
Table 6: Variance analysis of experimental data.  
Figure 10: Relationship between the micro-circular pit texture and the blunt edge parameters on the average milling temperature. (**a**) Influence of the micro-pit spacing on the milling temperature. (**b**) Influence of the micro-pit diameter on the milling temperature. (**c**) Influence of the distance from the edge on the milling temperature. (**d**) Influence of the blunt radius of and the cutting edge on the milling temperature.  
function of anti-wear and friction reduction, the average milling temperature initially decreases and then increases when the radius of the blunt edge increases. Second, when the distance from the cutting edge increases, the average milling temperature initially decreases; subsequently, the temperature increases and then decreases. Third, when the spacing between micro-pits increases, the average milling temperature initially increases and then decreases. Fourth, when the diameter of micro-circular pits increases, the average milling temperature initially decreases; subsequently, the temperature increases and then decreases.  
Conceptualization, S.Y. and X.L.; Data Curation, S.S.; Methodology, S.Y. and S.S.; Software, P.H.; Project Administration, S.Y.; Supervision, X.L.; Writing-Original, S.S.; Writing-Review, S.Y.; Data Analysis, S.S. and P.H. All authors have read and agreed to the published version of the manuscript. This research was funded by [The National Natural Science Foundation of China] grant number [51875144]. And the APC was funded by [The National Natural Science Foundation of China and Construction of scientific research collaborative innovation platform-Advanced manufacturing intelligent technology]. The authors declare no conflict of interest.