1. Demand Positioning and Parameter Matching
Mechanical Performance Requirements
High load-bearing scenarios (such as mechanical frames, vehicle chassis): Prefer specifications with a thickness of ≥3mm, ensuring a yield strength of ≥245MPa and a tensile strength of ≥305MPa to carry dynamic loads.
Lightweight requirements (such as consumer electronics, drone components): Select thin-wall design (1-2mm thickness), density of 2.7g/cm³ to take into account both strength and weight reduction requirements.
Corrosion resistance requirements
Marine engineering or high humidity environments need to match the process standards of anodized layer thickness of ≥10μm, salt spray test of ＞2000 hours without corrosion marks;
Conventional indoor scenes can use 5-8μm oxide film to reduce costs and retain surface hardness (HV≥300).
Appearance and precision
Consumer electronics and architectural decoration scenes need to choose a variety of anodized colors (such as red, black, copper, etc.) to adapt to the brand visual design;
Precision assembly scenes focus on tolerance control (within ±0.02mm), and CNC secondary processing profiles are preferred to reduce subsequent adjustment costs.
2. Process adaptability analysis
Forming process selection
Right-angle bending processing: It is necessary to ensure that the internal stress of the material is fully released after T6 heat treatment to avoid cracking during 90-degree bending (elongation ≥12%);
Precision CNC processing: Aluminum plates produced by controlled rolling technology are preferred to reduce the cutting tool loss rate (such as cutting amount per cut <0.1mm).
Surface treatment optimization
High wear-resistant scenes (such as industrial guide rails) use hard anodizing (film thickness 20-50μm, hardness HV≥500);
Conductivity requirements scenes (such as electronic radiators) choose natural color anodizing to avoid the oxide film affecting thermal conductivity.
