Before
After
Objective
Produce a bright, mirror-ready finish on stamped brass earring back tops without altering thickness or edge geometry, ensuring optimal surface preparation for electroplating.
| Part Description | Earring Back Tops |
| Industry | Jewelry |
| Fabrication Method | Stamped |
| Material | Brass |
| Process Technology | Polish, Superpolish/Ultrapolish, Surface Preparation (Plating) |
| Equipment Type | Centrifugal Barrel Finisher / Harperizer |
Solution
Stamped brass earring back tops required a mirror-quality surface prior to electroplating. The challenge was to achieve a bright, reflective finish without thinning the stamped material or distorting the delicate dome geometry.
Bel Air developed a controlled centrifugal barrel finishing process using precision polishing media designed for brass components.
The process:
- Refined stamped surface texture
- Removed light edge imperfections
- Produced a uniform, high-reflectivity finish
- Preserved dimensional integrity and part thickness
- Prepared surfaces for consistent plating adhesion
By utilizing a non-destructive superpolishing workflow, Bel Air delivered a repeatable, production-ready process that reduced manual polishing while ensuring reliable surface preparation for electroplating.
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.