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TolerancesOur commitment to quality is evident in our standard tolerance of 0.005mm. This level of accuracy is ideal for applications requiring tight tolerances, such as medical devices, automotive components, and scientific instruments.
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Materials for Die CastingTailor your parts to perfection with Chiheng's diverse material selection. Our comprehensive material library offers over 50 options, allowing you to select the ideal material for your specific application. From wear-resistant plastics to high-strength metals, we have the versatility to create custom parts that meet your unique performance needs.
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Surface FinishEnhance your parts with Chiheng's diverse surface finishing options. Our extensive range of over 10 finishes, including bead blasting, anodizing, chroming, and powder coating, allows you to tailor the appearance and performance of your components. Whether you need a corrosion-resistant finish, a visually appealing aesthetic, or a specific functional coating, we have the solution to meet your exact requirements.
Die casting is a widely used manufacturing process that injects molten metal into molds to create precise, high-quality components for various industries. With methods like high-pressure and low-pressure casting, diverse applications in sectors such as automotive and aerospace, and the use of metals like aluminum, zinc, and magnesium, die casting offers tailored solutions for complex geometries, material properties, and production needs, making it a versatile choice for custom and large-scale manufacturing.
High-Pressure vs Low-Pressure Casting
High-pressure and low-pressure die casting are two distinct methods used in manufacturing metal parts, each with unique characteristics:
High-pressure die casting uses pressures of 700 to 2500 bar, allowing for rapid production of thin-walled parts with excellent surface finish and dimensional accuracy. It's ideal for high-volume production of complex, detailed components, particularly in soft alloys like aluminum and zinc.
Low-pressure die casting operates at 0.7 to 1.5 bar, resulting in slower, more controlled filling. This method is better suited for larger parts (up to 150 kg) and produces components with higher strength and less porosity. It's more cost-effective for lower volume production and allows for heat treatment of parts.
While high-pressure die casting offers faster cycle times and smoother surfaces, low-pressure die casting provides better material properties and is more suitable for thicker-walled parts. The choice between these methods depends on factors such as part size, complexity, production volume, and required material properties.
Tooling Design for Complex Geometries
Tooling design for complex geometries in die casting requires careful consideration of part features and mold construction. Multi-slide tooling, which uses four perpendicular slides, enables the production of intricate and accurate castings, particularly for small zinc components. For more complex parts, designers must account for undercuts, which can prevent die separation and cast ejection. Solutions include designing parting lines around undercuts or using dies with multiple components beyond just the core and cavity. Advanced computer-aided design (CAD) software with mold flow simulations helps optimize tooling for complex geometries, allowing designers to analyze fluid movement and correct errors before production. This approach ensures that intricate details are accurately reproduced in the final product while maintaining efficient manufacturing processes.
Common Die Casting Metals
Die casting utilizes various metals and alloys, each offering unique properties suitable for different applications. The most common metals used in die casting are:
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Aluminum: Lightweight, corrosion-resistant, and offers good dimensional stability. Ideal for complex, fine-featured parts in automotive, aerospace, and electronics industries.
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Zinc: Easy to cast, provides excellent surface finish, and offers high impact strength. Commonly used in automotive, electronics, and consumer goods..
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Magnesium: The lightest structural metal, highly machinable, and suitable for hot-chamber die casting. Used in aerospace, automotive, and sports equipment.
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Copper alloys: Offer high electrical and thermal conductivity. Brass, a copper-zinc alloy, is used for decorative and functional components.
These metals are often alloyed with other elements to enhance specific properties. For instance, aluminum alloys typically contain silicon, copper, and magnesium, while zinc alloys like Zamak include aluminum, magnesium, and copper. The choice of metal depends on factors such as part complexity, required properties, production volume, and cost considerations.
Manufacturing Process Comparison
Die casting and CNC squeeze casting are two distinct manufacturing processes, each with unique advantages and applications. Here's a comparison of their key characteristics:
Aspect | Die Casting | CNC Squeeze Casting |
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Process | Molten metal injected into mold under high pressure | Molten metal solidified under high pressure, then machined |
Strength | Good for complex parts, lower strength | Higher strength and improved mechanical properties |
Production Volume | Ideal for high-volume production | Better for lower volume, specific parts |
Flexibility | Less flexible, suited for specific designs | More flexible, allows for complex shapes and post-processing |
Material Waste | Minimal waste, near-net-shape process | More waste due to machining process |
Surface Finish | Excellent surface finish | May require additional finishing |
Cost | More affordable for large-scale production | Higher cost due to additional machining step |
Die casting excels in high-volume production of complex parts with excellent surface finish, while CNC squeeze casting offers superior strength and is better suited for producing high-strength components with specific requirements. The choice between these methods depends on factors such as production volume, part complexity, and desired material properties.
Why Chiheng is a reliable online die casting supplier?
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Fast Quotes:Get your quote in just 6 hours with our dedicated engineers.
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Reduced Waiting Time:50% reduction in waiting period for quicker turnarounds.
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Precision Tolerance:Precision with ±0.0002 inches (5μm) tolerance.
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Advanced Equipment:Over 100+ professional pieces of equipment for top-quality production.
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ISO 9001 Certified:Quality backed by ISO 9001 certification.