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12 Processes and Production Flow of CD Patterns (with Data Table)
CD pattern is a surface treatment process that forms concentric circular textures similar to those on CD discs on product surfaces through mechanical or laser processing, integrating decorative and functional properties. It is widely used in 3C products, auto parts, home appliance casings and other fields. The following are 12 mainstream CD pattern processes and their production flows, accompanied by a core data table for reference.
I. 12 CD Pattern Processes and Production Flows
1. Mechanical Cutting CD Pattern
Flow: Blank Pretreatment (Grinding and Polishing) → Clamping and Positioning → High-Speed Cutting with Diamond Tool (Rotational Speed: 8000-12000r/min) → Deburring → Cleaning → Quality Inspection. Features: Low cost, strong mass production capacity, uniform texture, suitable for general decorative scenarios.
2. Laser Engraving CD Pattern
Flow: Drawing Import → Workpiece Fixing → Laser Parameter Debugging → Circular Engraving (Spot Diameter: 0.01-0.03mm) → Dust Removal → Surface Curing → Quality Inspection. Features: High precision, delicate texture, enabling personalized pattern overlay.
3. Electrochemical Etching CD Pattern
Flow: Workpiece Degreasing → Electroplating Primer → Mask Application (Exposure and Development to Expose Texture Areas) → Electrochemical Etching → Mask Stripping → Cleaning → Drying. Features: Uniform texture depth, suitable for complex curved surface processing.
4. In-Mold Injection CD Pattern
Flow: Mold Texture Processing (Engraving/Etching CD Patterns) → Mold Assembly and Debugging → Injection Molding (Temperature: 180-220℃) → Demolding → Finished Product Inspection. Features: Integral molding without post-processing, extremely high mass production efficiency.
5. CD Pattern After Sandblasting
Flow: Workpiece Sandblasting (Matte Base) → Positioning and Clamping → Mechanical Cutting CD Pattern → Cleaning → Anti-Oxidation Treatment → Quality Inspection. Features: Matte base color matched with bright CD patterns, strong layering.
6. Anodizing CD Pattern (Aluminum Alloy Special)
Flow: Aluminum Alloy Degreasing → Anodizing (Film Thickness: 5-10μm) → Laser Engraving CD Pattern → Sealing Treatment → Drying → Quality Inspection. Features: Excellent corrosion resistance and wear resistance, long-lasting texture luster.
7. Vacuum Coating CD Pattern
Flow: Workpiece Cleaning → Vacuum Coating (Aluminum/Chromium Plating) → Laser Engraving CD Pattern (Removing Partial Coating) → Protective Layer Spraying → Curing → Quality Inspection. Features: Strong metallic texture and excellent decorativeness.
8. CNC Milling CD Pattern
Flow: Blank Precision Grinding → CNC Milling Machine Positioning → Multi-Edge Tool Milling (Rotational Speed: Above 15000r/min) → Precision Deburring → Cleaning → Quality Inspection. Features: Controllable texture depth, suitable for thick material processing.
9. Rolling CD Pattern
Flow: Workpiece Pretreatment → Rolling Wheel Debugging (Texture Matching) → Room Temperature Rolling Forming → Stress Relief Treatment → Quality Inspection. Features: Extremely high efficiency, suitable for mass processing of long strip workpieces.
10. Chemical Etching CD Pattern
Flow: Workpiece Degreasing and Derusting → Photoresist Coating → Exposure and Development → Chemical Etching (Acid Corrosion) → Resist Stripping → Cleaning → Drying. Features: Delicate texture, suitable for ultra-thin workpiece processing.
11. Ultrasonic Processing CD Pattern
Flow: Workpiece Fixing → Ultrasonic Tool Debugging (Frequency: 20-40kHz) → Vibratory Cutting CD Pattern → Cleaning and Chip Removal → Quality Inspection. Features: Friendly to brittle materials, no stress damage.
12. Composite Process CD Pattern (Laser + Anodizing)
Flow: Aluminum Alloy Degreasing → Anodizing → Laser Engraving CD Pattern → Secondary Anodizing (Color Compensation) → Sealing → Quality Inspection. Features: Rich colors, strong texture three-dimensional sense, suitable for high-end products.
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