New X-RAS Coating Hot-formed Parts
Pressler's original new coating can meet the needs of ultra-high-strength steel hot stamping to achieve no oxide scale and no decarburization layer, and has certain anti-corrosion performance. It not only achieves low-cost bare plate tailor welding, but also has excellent cold bending performance and good welding performance.
Pressler Innovative Solutions
X-RAS coating innovatively adopts the "bare plate tailor welding first, then spraying, then vacuum hot stamping" process, which can make the surface of uncoated hot stamping steel plate generate a continuous, uniform and dense protective film, effectively avoiding the surface oxidation problem of uncoated hot stamping steel plate during high temperature heating, without subsequent shot blasting treatment, simplifying the process flow and improving the processing environment.
Pressler X-RAS Coating Hot-formed Parts Performance
This process innovation not only significantly reduces production costs, but also enables hot stamping parts to achieve welding, coating and corrosion resistance performance similar to aluminum-silicon coating, while demonstrating cold bending performance far superior to traditional aluminum-silicon coating.
Metallographic Structure and Coating Analysis
After hot pressing, the total coating thickness increases by nearly 4-10 times, the diffusion layer forms well, and the coating is fully alloyed during the hot stamping process.
Corrosion Resistance Performance
Corrosion resistance test: X-RAS coating ≈ AS150 coating > No coating
Mechanical Performance
The bonding force between the electrophoretic coating and the substrate is extremely strong; the bending angle is large, and the material has good bending formability/toughness; the adhesive strength of structural adhesive to the hot-formed steel surface is excellent.
Welding Performance
The effective window width is about 3 KA, which is a medium to wide process window with good fault tolerance in field production.
Conclusion
X-RAS coated hot-formed steel has excellent comprehensive performance, with all indicators meeting the application standards for automotive body-in-white safety structural parts, especially outstanding in welding process window width and structural adhesive bonding strength.