Tooling for Injection Molds

                           

Overview:

  • 1. Parts Design
  • The process begins with a completed and validated 3D part design provided by the client.
  • Optional Design Optimization: CNMOULDING can optimize your design to reduce costs and ensure manufacturability.
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  • 2. Parts Prototyping (Optional)
  • If needed, CNMOULDING can create physical prototypes using Computer Numerical Control (CNC) machining to validate the design before tooling.
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  • 3. Tool Design
  • The mold tool is designed based on the finalized part design.
  • Mold Flow Analysis: The tool design is validated to ensure accuracy and functionality.
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  • 4. Tool Fabrication
  • The tool is manufactured using advanced technologies such as CNC machining and Electrical Discharge Machining (EDM)for precision.
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  • 5. First Shots to Client
  • After the mold is completed, initial test samples are produced and shipped to the client within 2-5 days via international courier.
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  • 6. Tool Modifications and Texturing
  • Free Adjustments: CNMOULDING makes necessary modifications to meet specifications at no extra cost (excluding design changes).
  • Texturing: Surface textures are applied to the tool, typically the final step before mass production.
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  • 7. Mass Production or Tool Export
  • – Once approved, the tool is used for mass production of parts or prepared for export to the client.
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  • Technical Insights into Injection Molding
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  • 1. Importance of Tooling
  • High-quality tooling is critical for producing consistent, high-quality parts. Even the best designs can fail if the tooling is inadequate.
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  • 2. The Molding Machine
  • Modern molding machines are essential for achieving consistent dimensions and quality. Key features include:
  •   Precise temperature, pressure, and position control.
  •    A hopper feeds material into a screw and barrel, where it is heated to a molten state.
  •   The molten plastic is injected under high pressure into the mold, which is held closed by a toggle or hydraulic ram.
  •   After solidification, the mold opens, and the part is ejected for further cooling.
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  • 3. Material Handling
  • Drying: Engineering polymers often require pre-drying to a specific dew point.
  • Virgin Material: CNMOULDING uses only virgin material to ensure the highest quality, avoiding regrind materials that can compromise part integrity.
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  • 4. Injection Process
  • High-Pressure Injection: Plastic is injected quickly under high pressure to maintain melt consistency.
  • Pack & Hold Phase: Once the mold cavity is filled, pressure is maintained while injection speed slows to ensure complete filling and part density.
  • Gate Freezing: Pressure is held until the gates solidify, maximizing part weight and quality.
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  • Key Advantages of CNMOULDING’s Process
  • Design Optimization: Reduces costs and improves manufacturability.
  • Advanced Prototyping: CNC machining for accurate design validation.
  • Precision Tooling:Utilizes CNC and EDM technologies for high-quality molds.
  • Quality Assurance: Strict use of virgin materials and advanced molding techniques.
  • Efficient Production: Fast turnaround for prototypes and mass production.
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  • Conclusion
  • CNMOULDING’s comprehensive approach to tooling and injection molding ensures high-quality parts, cost efficiency, and timely delivery. By leveraging advanced technologies and rigorous quality control, CNMOULDING is a reliable partner for both prototyping and mass production.
 
 

 

 

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