Hi metal burners. This is my first post, so please go easy if Im asking a basic question. I tried to find previous threads about similiar problem but could not find any. But Im sure this is a a common problem for beginners like me.
Im working with Agie Charmilles wire EDM and would like to burn cylindrical rings with internal diam and outer diam of 9mm and 18mm. The problem I have is the unwanted marks on the entry/leaving point of the wire on the perimeter of the hole. There always dig in marks or uncut material when the ring fell off.
I got this idea of either putting a tangential radius at the entry point, before the wire cut the actual ring, so that the transition is smooth. I also think I should over travel when cutting the ring, but there is an issue of holding the ring when the profile is cut.
Do you have any ideas?I really need a smooth rings!