How Jewelry Is Made in OEM Factories: Step-by-Step Manufacturing Process Guide

How Jewelry Is Manufactured in an OEM Factory

The production process of gold-plated jewelry typically involves several steps. Below is a general overview of the manufacturing workflow:

1. Design

The jewelry design is created by a designer or a design team. This stage includes hand sketches, computer-aided design (CAD) modeling, or the use of specialized jewelry design software.

2. Wax Model or 3D Printing

A wax model of the jewelry piece is produced using traditional carving techniques or 3D printing. This model serves as the foundation for creating the mold.

3. Mold Making

A mold is made based on the wax model or 3D printed prototype. Common materials include silicone, rubber, or metal. The mold ensures the final jewelry piece can be accurately replicated.

4. Wax Injection

The mold is used to produce wax replicas of the jewelry through a process called wax injection. Molten wax is injected into the mold cavities, forming precise copies of the original design.

5. Tree Assembly

Multiple wax replicas are attached to a central wax rod, forming a tree-like structure. This allows several pieces to be processed together efficiently in later stages.

6. Investment Casting

The wax tree is coated with a ceramic shell through a process called investment casting. The shell is built up layer by layer until it forms a solid mold around the wax models.

7. Burnout

The ceramic shell containing the wax models is heated in a furnace. The high temperature melts and burns out the wax, leaving behind a hollow cavity in the exact shape of the jewelry pieces.

8. Quality Control

The final step involves inspecting the finished jewelry for defects and ensuring it meets quality standards. This includes checking the uniformity of gold plating, surface finishing, and overall appearance.