Henry
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Is anyone using the noble copings from argen? Having some ceramic issues of bubbling and separation from the metal. These are their CAD-CAM generated copings
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Is anyone using the noble copings from argen? Having some ceramic issues of bubbling and separation from the metal. These are their CAD-CAM generated copings
Thanks for responding. Yes they are the laser sintered Nobel Cad copings (Paladium/Chrome). We are using DSign and the CTE falls in line with the alloy.
Are you finishing the metal with stones or carbides? You should be using stones for the nobel and carbides for the high nobel.
I use argelite 54B and never had problems as you have described.
Maybe develop a new porcelain furnace that has pressure on the first bake, and not a vacuum? Force porc into holes as they pop! Get close to melting of alloy.
(my crazy mind trying to re-invent the wheel)
We had a couple pressurized argon furnaces here that we used on an R&D/beta testing project a couple years ago. The manufacturer pulled them when the project was dropped, but it did involve powdered metal copings.
- Actually, you are not tooooo crazy (I have to remind myself who I'm talking to here).
We also used a combination of vacuum and backfed argon for titanium porcelain back in the days when we were committed to that stuff.
thanks for the help. Mark, hope all is well. Henry Martin