Bartron
Mechanical
- May 10, 2010
- 1
We have a Sodick AG55L plunge EDM that is being used to cut small (3 mm x 8 mm) rectangular thru-cutouts into 6061-T6 aluminum. The electrode being used is C145 high-tellurium copper.
We've been having problems with surface finish/scale; a dark gray scale is left after the EDM process, and it is very difficult to remove, even with an acid treatment.
So far, I've tried changing the toolpath (more/smaller passes), and the electrode area (reduced voltage) to reduce the scale.
One thing I've noticed is that there are quite a few bubbles in the dielectric fluid. Could this be the cause of our surface scale problems? Has anyone seen anything similar to this before?
Best,
Jacob
We've been having problems with surface finish/scale; a dark gray scale is left after the EDM process, and it is very difficult to remove, even with an acid treatment.
So far, I've tried changing the toolpath (more/smaller passes), and the electrode area (reduced voltage) to reduce the scale.
One thing I've noticed is that there are quite a few bubbles in the dielectric fluid. Could this be the cause of our surface scale problems? Has anyone seen anything similar to this before?
Best,
Jacob
