Custom Car Roof Rack Metal Parts

1. Customization: Custom car roof racks are designed to meet the needs of different brands and models, with highly customizable sizes and shapes to meet diverse customer requirements.

2. High-Strength Structure: Utilizing an optimized structural design and high-strength materials (45-gauge steel forgings or aluminum alloy extrusions), they offer excellent load-bearing capacity and durability.

3. Superior Corrosion Resistance: Surface treatments such as blackening, electrophoresis, or QPQ treatments create a dense oxide layer that effectively isolates oxygen and moisture, significantly preventing rust and corrosion.

4. Wide Compatibility: The customized design can be adapted to the roofs of various vehicle models and compatible with common roof rack brands and specifications, meeting customer needs.

• CNC Precision Machining: Utilizing CNC lathes, milling machines, and five-axis machining centers for turning, milling, drilling, tapping, and broaching, we mass-produce complex parts with high efficiency and reliability.
• EDM (Electro-Discharge Machining): This process uses electrical discharge machining (EDM) technology to precisely remove material from metal surfaces. It can process a variety of conductive metals and complex curved surfaces. EDM machining achieves extremely small discharge gaps (minimum 0.5mm), sharp chamfers (R0.05-0.07mm), and high dimensional accuracy within ±0.01mm.
• Stamping: This process uses a punch press to rapidly stamp metal sheets or strips, suitable for mass production of load-bearing or structural components.
• Gear Hobbing: This process is specifically designed for producing tooth profiles on transmission components such as gears and spline shafts, ensuring precise fit and transmission efficiency.
• Other Machining: This includes grinding, drilling, reaming, tapping, broaching, and various cutting methods, used for finishing and detailing parts to ensure surface finish and hole position accuracy.

• Mechanical Surface Treatment: Polishing, sandblasting, brushing, and other processes are used to reduce surface roughness, clean, and texture workpieces.
• Chemical/Electrochemical Treatments: Anodizing, electroplating, blackening, spray coating, electrophoresis, and QPQ processes create a dense protective layer on metal surfaces, significantly improving corrosion and wear resistance. For example, electrophoretic coating forms a uniform protective film on the metal surface, effectively preventing environmental corrosion. QPQ salt bath composite treatment increases the corrosion resistance of 45 steel by dozens of times compared to hard chrome plating.

• 45 Steel (Medium Carbon Steel): High strength and excellent wear resistance, suitable for structural parts bearing heavy loads.
• Aluminum Alloy: Lightweight and corrosion-resistant, suitable for parts requiring lightweight designs.
• Stainless Steel: Excellent corrosion resistance and stability, suitable for a variety of harsh environments.
• Brass: Excellent machinability and good thermal and electrical conductivity, commonly used in precision components and decorative parts.

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