LiMiTeD_DiAvOlO
nateman_dooThe de-burring process, nothing but a hand file, and time:The center one has been de-burred. The other 2 have all the stringy copper remaining.
I know very little of the processes happening with these so my pardon my lack of knowledge but here is a question; Why is it that the color of the copper seems so different in the de-burring photos compared to the photos of them just being cut? Possibly just a weird lighting issue? Or is some awesome act of science causing a color shift?
That is just lighting. Copper oxidises very quickly so will darken
after machining, even from just touching copper, the acids on your
skin can speed up the oxidisation process.
In the latter pics they look lighter so it is sure to be just the lighting.