Shenzhen Alu Rapid Prototype Precision Co., Ltd.

Die-cast models are made through a precise manufacturing process that involves creating detailed, durable replicas using metal casting techniques. Here’s a concise overview of the process:

1.Design and Prototyping: 

The process begins with designing the model, often using CAD software to create detailed 3D renderings. Designers reference real vehicles or objects for accuracy. A prototype, often made from resin or 3D-printed materials, is created to test the design.

2.Mold Creation:

Once the design is finalized, steel molds (or dies) are crafted. These molds are made in two halves, with intricate cavities that form the model’s shape. The molds are highly precise, accounting for fine details like panel lines or logos, and are built to withstand high pressure and repeated use.

3.Die-Casting Process:

Material Preparation: A metal alloy, typically zinc-based (like Zamak) or aluminum for lightweight models, is melted in a furnace at high temperatures (around 400–450°C for zinc).

Injection: The molten metal is injected into the steel mold under high pressure (up to 2,000 psi) using a die-casting machine. This ensures the metal fills every detail of the mold.

Cooling and Ejection: The metal cools and solidifies quickly (within seconds) inside the mold. The mold is then opened, and the cast part is ejected.

4.Trimming and Cleaning: 

Excess material (flash) is trimmed from the cast part, and surfaces are cleaned or polished to remove imperfections.

5.Assembly: 

For complex models, multiple cast parts (e.g., body, chassis, wheels) are assembled. Additional components like plastic interiors, windows, or rubber tires are added. Some parts may be glued, screwed, or snap-fitted together.

6.Painting and Detailing:

 The model is painted, often using automated spray systems for base coats and hand-finishing for details like logos, headlights, or decals. Techniques like tampo printing apply precise graphics. Some models receive chrome plating or weathering effects for realism.

7.Quality Control and Packaging: 

Each model is inspected for defects in casting, paint, or assembly. Approved models are packaged, often with display cases or stands, and shipped to retailers or collectors.

This process combines engineering, artistry, and precision to create collectible models valued for their accuracy and craftsmanship.