Measuring the qualitative factors on copper wire surface

This paper is focused on improvement of quality of copper wire manufacturing process. Through the Design of Experiment (DOE) method, it presents the way to keep the thickness of oxide layer during rolling copper wire at the level requested by customer. Variation coefficient of measurement replications performed in each test within the planned experiment was used as the response in the DoE method. Settings for the selected process parameters of copper wire rolling that have a significant effect on the thickness of the surface oxide layer, and were obtained on the basis of the planned experiment, were verified in the production conditions.