One-piece structural element - double car door reinforcement (internal and external)
The one-piece structural element, the vehicle's dual door reinforcement (inner and outer), is a key integrated component required for side impact safety in today's vehicles.
Description
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Product Description
The one-piece structural element, the vehicle's dual door reinforcement (inner and outer), is a key integrated component required for side impact safety in today's vehicles. The manufacturing technology is based on the principles of hot stamping: ultra-high-strength boron steel is used as the starting material, which is subjected to high-temperature austenitization to change the structure of the material, then rapid forming is performed in a special die with simultaneous hardening to form a stable martensitic structure. The main process operations include forming, hardening, calibration, welding and quality control. The finished product is a one-piece molded double door reinforcement with high strength uniformity and dimensional stability, widely used in the body side panels of various passenger cars, providing comprehensive double protection for vehicle passive safety.
Main Features
1. Double side impact protection: The inner and outer door reinforcement design forms a high-strength closed circuit for side impact protection, which greatly improves the body's penetration resistance.
2. Ultra-high strength: tensile strength in key areas ≥ 1500MPa, which effectively resists side impact loads.
3. Lightweight Integrated Design: Fully molded design reduces the number of welding steps, providing 15-25% weight savings compared to traditional designs.
4. Stable dimensional accuracy: Hot forming technology ensures the geometry of complex contours is stable and meets welding and body assembly tolerances.
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