Die Casting Industry

CNC Machining of Plastic Sheets

Plastics CNC Milling

CNC machining of sheets is a manufacturing process used, for example, to cut plastic sheets to the correct external contour. The advantage of CNC machining lies in its ability to precisely produce any contour and dimensions without significant effort. CNC-machined sheets are primarily used in the advertising industry and mechanical engineering.

Advantages of CNC Machining

  • Highest Precision: Exact contours, clean cut edges, and millimeter-accurate results.

  • Repeatability: Ideal for series production and standardized components.

  • Shape Variety: Complex geometries and engravings are effortlessly achievable.

  • Material Preservation: Low heat generation and clean edges – ideal for sensitive plastics.

  • Efficiency: Automated processes reduce processing times and costs.

The CNC Machining Process

  1. CAD Drawing: The shape is designed digitally.

  2. CAM Programming: The software generates the tool paths and the G-code.

  3. Machine Preparation: Clamp the material, set the zero point, select the tool.

  4. CNC Cutting: The machine mills precisely along the contours.

  5. Post-Processing: Deburring edges, polishing, cleaning.

  6. Quality Control: Dimensional accuracy and cleanliness are checked.

Materials We Process

  • Acrylic Glass (PMMA): For displays, signs, and covers.

  • PVC Foam Board (Forex): Ideal for advertising and shop fitting.

  • Polycarbonate (PC): Impact-resistant for technical applications.

  • PE and PP: Versatile uses in mechanical engineering.

  • HPL and Composite Panels: Robust and weather-resistant for indoor and outdoor areas.

  • Engineering Plastics (POM, Solid PVC, PA6, PE, and more)

  1. Application Areas of CNC Machining

    • Advertising Technology: Logos, lightboxes, lettering

    • Mechanical Engineering: Housings, covers, components

    • Interior Construction: Furniture parts, decorative elements

    • Medical Technology: Hygiene protection, cover plates

    • Vehicle and Lightweight Construction: Structural parts and panels

    CNC Milling vs. CNC Laser Cutting
    Both processes produce precise results, but CNC milling stands out due to its versatility and technical capabilities. Laser cutting excels with thin acrylic but is limited to few materials and 2D contours. CNC milling, in contrast, processes almost all common plastics. It additionally enables milling operations, drillings, and complex shapes.