Views: 0 Author: Site Editor Publish Time: 2025-05-27 Origin: Site
| Aspect | VDI 3400 Standard | Surface Treatments (PVD, Plating, Nitriding) |
|---|---|---|
| Purpose | Defines surface texture & finish | Enhances hardness, wear, and corrosion resistance |
| Measurement | Ra/Rz roughness (e.g., VDI 12 ≈ 0.05µm) | Coating thickness (µm), hardness (HRC/HV) |
| Implementation | Achieved via EDM, laser texturing, or chemical etching | Applied via deposition, heat treatment, or electroplating |
| Primary Use | Aesthetic/textured parts (e.g., car interiors, electronics) | Functional improvement (e.g., glass-filled plastics, high-temp molds) |
Step 1: Polish to VDI 10 (mirror finish)
Step 2: Apply ion nitriding (HRC 60 hardness)
Step 3: Laser-engrave VDI 28 (leather grain texture)
Result:
Meets Mercedes-Benz MS-900 texture standards
Withstands 100,000+ cycles without wear
Step 1: Polish to VDI 6 (ultra-smooth)
Step 2: Coat with DLC (Diamond-Like Carbon)
Result:
70% lower ejection force (prevents part sticking)
Complies with FDA surface finish requirements
Example: Consumer electronics, luxury car interiors
Recommended Process:
VDI 15-25 (smooth matte finish)
PVD-TiN coating (prevents scratches)
Example: Glass-fiber reinforced plastics, high-temperature resins
Recommended Process:
VDI 10-12 (smooth base)
TiAlN coating (heat resistance up to 800°C)
| Process Combination | Cost Factor | Best For |
|---|---|---|
| VDI 15 + Gas Nitriding | 1.0X | General industrial parts |
| VDI 6 + PVD-TiAlN | 3.5X | Optical-grade components |
| VDI 25 + Electroless Ni-PTFE | 2.2X | Medical devices (self-lubricating) |
AI-Assisted Quality Control: Automated systems check VDI texture + coating thickness in real time.
Eco-Friendly Texturing: Laser-based VDI patterning (no chemical etching).
Smart Coatings: Self-healing layers that adapt to wear.
VDI 3400 = Controls how the surface looks/feels
Surface treatments = Determine how long the mold lasts
For optimal results, combine both—first select the right VDI grade, then apply the best surface treatment for durability.
