Correction to: The International Journal of Advanced Manufacturing Technology (2019) 102:3995–4009

https://doi.org/10.1007/s00170-019-03453-3

The original article contained a mistake.

Correction 1: Figure 7 is replaced with the following figure:

Fig. 7
figure 1

Convergence characteristics of PSO and TLBO

Correction 2: Figure 13 is missing with the following citation.

[4] Gupta MK, Sood PK (2017) Machining comparison of aerospace materials considering minimum quantity cutting fluid: a clean and green approach. Proc Inst Mech Eng C J Mech Eng Sci 231:1445–1464. https://doi.org/10.1177/0954406216684158