Before
After
Objective
A customer needed to smooth and polish dental retainers and braces made from Lazertek Cobalt-Chrome (CoCr) powder without altering the fit or geometry of the parts. The goal was to eliminate manual grinding and replace it with a consistent, automated solution that preserved detail while improving surface finish.
| Industry | Dental |
| Part Description | Dental Frameworks |
| Material | Cobalt Chrome |
| 3D Printer Technology | Binder Jet, DMLS/SLM, EBM/EBAM |
| Process Type | Smooth & Polish Surface |
| Equipment Type | Industrial 3D Print Smoother |
Solution
Bel Air implemented a wet slurry blasting process using the Industrial 3D Print Smoother to uniformly smooth the surface of Binder Jet and DMLS-produced cobalt chrome frameworks. This technique effectively removed build texture and reduced Ra/Sa values without compromising part geometry. While full mirror polish was not required, the process delivered a refined, semi-gloss finish suitable for dental use—eliminating manual grinding and improving overall consistency.
If you are unsure what equipment and media you require to achieve your desired surface finish, then send us your part, and we will evaluate it and provide you with a metrology report.