OEM ODM Tool Manufacturer Injection Mold Custom Service

The Custom Injection Molding Process: 6 Key Steps

1. Design & Prototyping

• CAD models define part geometry.

• Simulation software (e.g., MoldFlow) predicts flow, cooling, and defects.

2. Mold Fabrication

• Steel/aluminum molds are CNC-machined or EDM-cut.

• Features like side actions or hot runners are added for complexity.

3. Material Selection

• Commodity plastics (ABS, PP) for cost-sensitive parts.

• Engineering resins (PC, Nylon) for strength/heat resistance.

4. Testing (T0/T1 Samples)

• Initial shots check for defects (sink marks, warping).

• Adjustments to pressure, temperature, or gate design.

5. Mass Production

• Automated presses run 24/7 with minimal supervision.

• Cycle times range from seconds to minutes per part.

6. Post-Processing

• Trimming, painting, or assembly (e.g., overmolding metal inserts).

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