How to Produce an Openwork Rose-Shaped Pendant: Fremstillingsproces & Omkostningsfordeling
Indholdsfortegnelse
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Introduction to Openwork Jewelry 
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Designing the Rose-Shaped Pendant 
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Materials Selection 
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Manufacturing Methods - 
4.1 CNC bearbejdning 
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4.2 Laserskæring 
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4.3 Casting (Lost-Wax & 3D Udskrivning) 
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4.4 Håndfremstilling 
 
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Step-by-Step Production Process 
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Efterbehandling & Plating Options 
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Kvalitetskontrol & Afprøvning 
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Omkostningsfordeling (Materialer, Arbejdskraft, MOQ Impact) 
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Choosing Between OEM & ODM Production 
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Top Manufacturers for Openwork Rose Pendants 
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Casestudie: Sample Production Run 
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Konklusion & Recommendations 
1. Introduction to Openwork Jewelry
Openwork (or filigree) jewelry features intricate cut-out designs, making it lightweight yet visually striking. EN rose-shaped pendant in this style requires precision manufacturing, typically using:
✔ CNC machining (for sharp, clean edges)
✔ Laser cutting (for delicate patterns)
✔ Investeringsstøbning (for organic shapes)
Denne vejledning dækker how to produce an openwork rose pendant and analyzes cost factors based on materials, arbejdskraft, og ordremængde.
2. Designing the Rose-Shaped Pendant
Key Design Considerations
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Pattern Complexity (more details = higher cost) 
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Størrelse & Tykkelse (affects material usage) 
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Attachment Method (bail, jump ring, or integrated chain) 
Software brugt
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CAD (Rhino, Matrix, ZBrush) for 3D modeling 
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Vector (Adobe Illustrator) for laser-cut designs 
Example Design Specs:
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Diameter: 25mm 
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Tykkelse: 1.2mm 
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Materiale: 925 Sterling sølv 
3. Materials Selection
| Materiale | Fordele | Ulemper | Bedst til | 
|---|---|---|---|
| 925 Sterling sølv | Premium finish, anløbsbestandig | Højere omkostninger | High-end jewelry | 
| Messing (Forgyldt) | Overkommelig, alsidig | Må pløje over tid | Mode smykker | 
| Rustfrit stål | Holdbar, hypoallergenisk | Harder to cut finely | Minimalistiske designs | 
4. Manufacturing Methods
4.1 CNC bearbejdning
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Behandle: A computer-controlled router cuts the design from a metal sheet. 
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Bedst til: Precise geometric patterns. 
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Koste: $8–$20 per unit (MOQ 50+) 
4.2 Laserskæring
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Behandle: A laser burns through metal to create intricate designs. 
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Bedst til: Ultra-fine details (F.eks., petal textures). 
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Koste: $5–$15 per unit (MOQ 100+) 
4.3 Casting (Lost-Wax & 3D Udskrivning)
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Behandle: Wax model → Plaster mold → Molten metal casting. 
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Bedst til: Organic, curved rose shapes. 
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Koste: $10–$30 per unit (MOQ 20+) 
4.4 Håndfremstilling
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Behandle: Artisans cut and solder metal wires. 
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Bedst til: Custom one-of-a-kind pieces. 
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Koste: $50–$200 per unit (Labor-intensive) 
5. Step-by-Step Production Process
Trin 1: CAD Design & Prototyping
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Create a 3D model of the rose pendant. 
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Test print in wax or resin before metal production. 
Trin 2: Metal Cutting/Forming
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CNC/laser cuts the design from a sterling silver sheet. 
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If casting, inject molten silver into a mold. 
Trin 3: Rensning & Polering
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Remove burrs with ultrasonic cleaning. 
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Polish to a mirror or matte finish. 
Trin 4: Plettering (Valgfri)
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Gold/Rhodium plating for extra shine. 
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Antique oxidation for vintage effects. 
Trin 5: Kvalitetsinspektion
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Check for defects, vægt, and dimensions. 
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Test plating durability (salt spray test). 
6. Efterbehandling & Plating Options
| Slutte | Effect | Cost Addition | 
|---|---|---|
| High Polish | Mirror-like shine | +$1–$3 | 
| Matte/Satin | Blød, non-reflective | +$2–$5 | 
| Guldbelægning | Luxe rose gold/yellow gold | +$3–$10 | 
| Oxideret | Darkened vintage look | +$4–$8 | 
7. Kvalitetskontrol & Afprøvning
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Dimensionel nøjagtighed (caliper measurement) 
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Plettering adhæsionstest (tape peel test) 
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Sær modstand (humidity chamber) 
8. Omkostningsfordeling
EN. Materielle omkostninger
| Materiale | Cost per Unit | 
|---|---|
| 925 Sølv (25mm) | $6–$15 | 
| Messing (Forgyldt) | $3–$8 | 
| Rustfrit stål | $4–$10 | 
B. Arbejdskraft & Production Costs
| Metode | Cost per Unit | 
|---|---|
| CNC bearbejdning | $8–$20 | 
| Laserskæring | $5–$15 | 
| Casting | $10–$30 | 
| Håndlavet | $50- $ 200 | 
C. MOQ Impact on Pricing
| Bestilsmængde | Price per Unit | 
|---|---|
| 1–50 pcs | $25–$80 | 
| 50–200 pcs | $15–$40 | 
| 200–1000 pcs | $8–$25 | 
| 1000+ PCS | $5–$15 | 
Total Estimated Cost Range:
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Masseproduktion (1000+): $10–$25/unit 
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Small Batch (50–100): $20–$50/unit 
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Custom Handmade: $80–$300/unit 
9. OEM vs. ODM Production
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OEM: You provide the design; factory produces it. 
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ODM: Factory designs & manufactures for you. 
Best Choice?
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Startups → ODM (lower design cost) 
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Established brands → OEM (full customization) 
10. Top Manufacturers
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Kina: Low-cost, high-volume (MOQ 500+) 
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Thailand: Handcrafted excellence (MOQ 50+) 
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Italien: Luxury craftsmanship (MOQ 10+) 
11. Casestudie: 500-Unit Production Run
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Design: Laser-cut sterling silver rose pendant 
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Fabrikant: Guangdong Jewelry Co. (Kina) 
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Koste: $12/enhed ($6,000 total) 
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Timeline: 25 dage (including shipping) 
12. Konklusion & Recommendations
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Best for Budget: Laser-cut brass (forgyldt) 
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Best for Luxury: CNC-milled 925 sølv 
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Best for Small Batches: Casting + hånd efterbehandling 
Næste trin:
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Finalize CAD design (or use ODM catalogs). 
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Request quotes from 3–5 manufacturers. 
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Bestil prøver before full production. 
