**4. Conclusions**

In the present paper, regression models are presented for roughness, material removal rate and tool wear in the rough, semi-finish and finish operations. A sensitivity study is presented for the multi-objective optimization process. The main conclusions of the work are as follows:


**Author Contributions:** Conceptualization, I.B.-C.; methodology, I.B.-C., L.R.-d.-L. and L.M.-A.; software, I.B.-C. and L.R.-d.-L.; validation, L.R.-d.-L.; formal analysis, L.R.-d.-L. and L.M.-A.; investigation, I.B.-C., L.R.-d.-L. and L.M.-A.; resources, I.B.-C.; data curation, I.B.-C.; writing—original draft preparation, I.B.-C. and L.M.-A.; writing—review and editing, I.B.-C.; visualization, I.B.-C., L.R.-d.-L. and L.M.-A.; supervision, I.B.-C.; project administration, I.B.-C.; funding acquisition, I.B.-C. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the Spanish Ministry of Economy and Competitiveness, project number DPI2011-26300.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** The data presented in this study are available in Appendix A.

**Acknowledgments:** The authors would like to thank Alejandro Domínguez-Fernández and Ramón Casado-López for their help with the experimental tests, as well as the company Honingtec S.A. for lending the honing machine.

**Conflicts of Interest:** The authors declare no conflict of interest.
