Before
After
Objective
A precious metals company in the Norman, OK region needed a repeatable polishing process for cast silver bars. The goal was to produce a bright, consistent finish prior to the coining process.
| Industry | Consumer Goods |
| Part Description | Silver Bar |
| Fabrication Method | Cast |
| Material | Precious Metal – Silver |
| Process Technology | Burnish, Polish |
| Equipment Type | Roll Burnisher |
Solution
Bel Air developed a repeatable polishing process for cast silver bars using a Roll Burnisher. The goal was to produce a bright, consistent finish prior to the coining process.
The burnishing process improved surface brightness while preserving the shape and detail of the cast silver bars. Different media, compounds, and process settings were evaluated to achieve the desired finish before downstream processing.
The completed process consistently produced polished silver bars with a bright finish suitable for coining applications.
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.