Eighthnote74
Plastic
- Joined
- Nov 6, 2019
Hello, I've got a job milling and drilling aluminum manifold blocks. It is very critical that these manifolds have no hanging burrs that could contaminate the liquid once these blocks are assembled. I've been using an optic fiber camera to inspect the cross holes after machining with mixed results. My goal here is to come up with a method that will minimize the secondary operations. I don't think I can skip the inspection method but if I could improve the drilling process I would spend less time hand working the holes. I know the order of machining is very important. That variable is solved. Of course the SFM and feed effects the outcome. Drill point geometry is something I've been experimenting with. High pressure thru the nose coolant. Because of the quantities and the number of holes in each block any improvements I make will be worth the effort. If there's any aspect(s) I haven't look into please push me there. One piece of info -- after drilling I'm reaming the holes to size with step reamers. That helps but not enough.
Thanks in advance. Stay free.... and safe.
Thanks in advance. Stay free.... and safe.