Plastic Injection Mold Making Process

 In China, a long-standing tradition of export mold manufacturers, we share here the basic injection mold making overview:

1. Parts Design (client may provide completed 3D files)
The tooling process begins with a completed and checked part design. CNMOULDING can optionally optimize your design before tooling to lower your costs and ensure that your design will work well.

2. Parts Prototyping (if necessary)

If you would like to validate your parts design with a machined piece that you can see and feel, CNmoulding can use Computer Numerical Control (CNC) techniques to prototype your parts.

3. Tool / Mold Design

At this stage the tool is designed, using the information from your completed tools and molds design

4. Tool / Mold Check and Mold Flow Analysis
The tool design is validated for correctness.

5.Tool / Mold Fabrication

(including use of Computerized Numerical Control (CNC) and Electrical Discharge Machining (EDM) technologies)
The tool is precisely fabricated according to the validated design.

6. New Injection Molds First Shots To Client
Once the injection molds are made, the first test shot samples will be sent out soon after via an international courier. Once sent, these usually take around 2-5 days to arrive.

7. Tool / Mold Modifications and Texturing
At this stage, the Mold shop completes the tool and makes any required changes to bring the tool into the approved spec. Changes made to bring the tool to spec (specifically excluding design changes, which are always charged) are made free of charge.
At this stage, texturing also takes place, which is normally the last stage before mass production.

8. Mass Production Run or Export
At this stage, parts are produced and delivered to the customer, or the tool is released for export use.

Technical Topics:

Molding begins with tooling. No matter how good the design, if the tooling is not up to the task. The quality of the parts will suffer.

The Mold Making & factory tour in china