**5. Conclusions**

The effect of the roll design on the strain distribution of the flat surface and on *b*, and *W* values; and the strain inhomogeneity of flat-rolled wires were systematically investigated during the flat rolling process. The major conclusions are as follows:


**Funding:** This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2018R1D1A1B07050103).

**Conflicts of Interest:** The author declares no conflicts of interest.
