New to the forum. Thanks in advance for your help and experience.
I have some relatively small Kovar parts (~1" x 1" square with square center cutout to wall thickness .040", height .070", smallest hole is .032") that require deburring after finishing on the CNC. Material is annealed and pretty gummy, so we watch close and use sharp tools to minimize burrs, then deburring tools on the CNC. Those backside burrs are still there, though.
In the past we have deburred everything by hand because of the surface finish and tolerance requirements, but the volume has picked up and we need a more efficient way of deburring. I've used rotary and vibratory tumblers in the past for various deburring/cleaning/polishing tasks, but one big challenge with this one seems to be finding the right media, a balance between removing burrs and scratching or removing too much material in other areas.
Vibratory and rotary take longer in comparison to centrifugal disc, but we already have those machines and a CD is $$$$ by comparison. If we can identify the right media with the rotary and/or vibratory tumblers, we may look at a CD down the road to reduce cycle time, but that's a ways away.
Does anyone have any experience with media deburring of Kovar? Or maybe 303 (they seems relatively close on material properties & machining characteristics)?
Thanks in advance for any help or suggestions.
I have some relatively small Kovar parts (~1" x 1" square with square center cutout to wall thickness .040", height .070", smallest hole is .032") that require deburring after finishing on the CNC. Material is annealed and pretty gummy, so we watch close and use sharp tools to minimize burrs, then deburring tools on the CNC. Those backside burrs are still there, though.
In the past we have deburred everything by hand because of the surface finish and tolerance requirements, but the volume has picked up and we need a more efficient way of deburring. I've used rotary and vibratory tumblers in the past for various deburring/cleaning/polishing tasks, but one big challenge with this one seems to be finding the right media, a balance between removing burrs and scratching or removing too much material in other areas.
Vibratory and rotary take longer in comparison to centrifugal disc, but we already have those machines and a CD is $$$$ by comparison. If we can identify the right media with the rotary and/or vibratory tumblers, we may look at a CD down the road to reduce cycle time, but that's a ways away.
Does anyone have any experience with media deburring of Kovar? Or maybe 303 (they seems relatively close on material properties & machining characteristics)?
Thanks in advance for any help or suggestions.