Aluminium Die-Casting Alloy

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This invention introduces a new aluminum die-casting alloy designed for use in automotive structural components. The alloy contains specific proportions of silicon, nickel, manganese, and optional elements like strontium, titanium, zirconium, magnesium, copper, and zinc. This composition achieves an optimal balance of strength and ductility, making it particularly suitable for producing large, lightweight, yet strong vehicle parts. The patent also details heat treatment processes that further enhance mechanical properties without the usual drawbacks of distortion or high costs seen in prior art.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacturing large and thin-walled structural components for car bodies and frames
• Production of lightweight automotive parts where high strength and ductility are required, such as chassis components, engine mounts, and suspension elements
• Use in electric vehicle (EV) platforms to optimize structural strength while minimizing weight
• Application in industrial machinery or aerospace parts that require precision casting with enhanced mechanical properties
• Parts manufacturing processes where integrated surface finishes (such as painting/lacquering) and heat treatments are beneficial

BenefitsContent extracted from patent full text and abstract with AI.

• Provides a superior balance of strength and ductility, allowing for thinner, lighter parts without compromising structural integrity
• Reduces costs and energy consumption in heat treatment due to efficient processing during existing steps like paint drying
• Improves corrosion resistance and reduces susceptibility to cracking or brittleness compared to copper-rich alloys
• Offers excellent castability and processability, minimizing defects like sticking to molds and reducing post-processing requirements
• Enables faster manufacturing cycles and easier integration with existing automotive assembly lines
• Enhances weldability and joinability, thanks to material properties optimized for automotive multi-metal assembly

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to an aluminum die casting alloy having the following alloy constituents: 5 to 9 wt. %, in particular 6.5 to 8 wt. %, silicon, 0.05 to 0.3 wt. %, in particular 0.1 to 0.2 wt. %, nickel, manganese and/or chromium and/or molybdenum and/or vanadium, the sum of said elements being 0.05 to 1.0 wt. %, in particular 0.2 to 0.6 wt. %, the remainder consisting of aluminum and inevitable impurities.