Brass & Silver Jewelry Lean Production Flow
Complete Professional Manufacturing Process
Main Production Flow Chart
1. R&D & Design
→
2. Prototype Making
→
3. Rubber Mold Opening
→
4. Wax Injection & Wax Trimming
↓
5. Wax Tree Assembly & Plaster Pouring
→
6. Baking & Metal Casting
→
7. Acid Pickling
→
8. Filing & Trimming
↓
9. Lock Clasp & Assembly
→
10. Stone Setting & Micro-setting
→
11. Polishing & Grinding
→
12. Electroplating & Surface Treatment
↓
13. Final QC Inspection
→
14. Packaging & Warehousing
Detailed Process Explanation
1. Prototype Stage
- Concept Design & 3D Modeling
- 3D Laser Printing (Wax / Resin)
- Manual Finishing & Master Silver Sample
2. Molding & Waxing Stage
- Rubber Molding
- Manual Mold Cutting
- Wax Injection (70°C–75°C)
- Wax Trimming & Defect Removal
3. Casting Stage
- Wax Tree Assembly
- Plaster Pouring & Vacuum Defoaming
- Baking & Dewaxing (700°C–750°C)
- Metal Melting & Casting
- • Silver: 925 Silver (92.5% Silver + 7.5% Copper)
- • Copper: Eco-friendly Brass / Bronze
- • Equipment: Vacuum Centrifugal Casting Machine
4. Metal Working Stage
- Plaster Removing & Cutting
- Acid Pickling (Remove Oxide Layer)
- Filing, Trimming & Laser Welding Assembly
5. Setting & Finishing Stage
- Rough Mechanical Polishing
- Stone Setting: Micro-setting, Prong Setting, Bezel Setting
- Manual Fine Polishing (Mirror Finish)
6. Plating & Final Process Stage
- Ultrasonic Cleaning
- Electroplating
- • Copper: Base Plating + Gold / Rhodium Plating
- • Silver: Direct Rhodium / 18K Gold Plating
- • Optional: Anti-tarnish Coating
- Final QC Inspection
- Labeling, Packaging & Warehousing