Aluminum Alloy Casting

High-Performance Aluminum Alloy Casting & Precision Machining | Vast

Vast is a premier manufacturer specializing in aluminum alloy investment casting cURL Too many subrequests. high-precision CNC machining. We deliver lightweight, high-strength components engineered for superior corrosion resistance and durability in demanding environments.

By integrating advanced silica sol investment casting with state-of-the-art machining, we provide “near-net-shape” solutions that reduce material waste and significantly lower production costs.

Why Choose Aluminum Alloy Casting from Vast?

Our aluminum components are favored by global industries for their unique balance of performance and efficiency:

Lightweight Performance: Ideal for weight-critical applications without sacrificing structural integrity.
Superior Corrosion Resistance: Naturally forms a protective oxide layer, perfect for harsh industrial environments.
High Dimensional Accuracy: Achieving tight tolerances and complex geometries through advanced CNC machining.
Customized Solutions: From prototype to mass production, we tailor every component to your specific engineering requirements.

Key Applications & Industries

Vast’s precision aluminum castings are the backbone of modern engineering across several sectors:

cURL Too many subrequests. Engine components, transmission housings, and lightweight chassis parts.
Aerospace: High-strength, weight-reduced brackets and structural fittings.
Construction Machinery: Durable hydraulic components and specialized hardware.
Industrial Equipment: Precision-engineered parts for pumps, valves, and robotics.

Advanced Manufacturing Processes

We ensure consistent quality and international compliance by utilizing:

Investment Casting (Lost Wax Process): Captures intricate details and smooth surface finishes.
Precision CNC Machining: Guarantees exact specifications for value-added finishing.
Rigorous Quality Control: Every part undergoes strict inspection to meet ISO 9001 standards.

What is Aluminum Alloy Casting？

What is Aluminum Casting? | Precision Manufacturing & Process Overview

Aluminum casting is a high-efficiency manufacturing process that involves melting aluminum alloys and pouring the molten metal into a precision-engineered mold. Once cooled, the metal solidifies into a specific, high-strength component. The materials used in this process are specifically categorized as casting aluminum alloys, known for their excellent fluidity and thermal properties.

The Aluminum Casting Process: Step-by-Step

To ensure the highest quality for industrial applications, the casting process follows a rigorous technical workflow:

Alloy Preparation: Pure aluminum or aluminum ingots are blended according to precise standard composition ratios cURL Too many subrequests.
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cURL Too many subrequests. Naturally durable against harsh environmental factors.
Cost-Effective Mass Production: High repeatability and minimal material waste (near-net-shape).

Advantages of Aluminum Alloy Casting

Lightweight with High Strength

Aluminum alloy castings offer an excellent strength-to-weight ratio, making them ideal for applications where reducing weight without compromising strength is critical, such as automotive and aerospace.

Corrosion & Oxidation Resistance

With natural oxide layers and alloying elements, aluminum castings provide outstanding resistance to rust, oxidation, and environmental exposure, extending component life in demanding conditions.

Excellent Thermal & Electrical Conductivity

Aluminum alloys deliver superior heat dissipation and electrical conductivity, making them well-suited for applications in energy, electronics, and automotive cooling systems.

Versatility in Applications

Aluminum alloy castings can be tailored for a wide range of industries — from automotive, aerospace, and construction to electronics and industrial equipment — providing both design flexibility and cost efficiency.

Gallery of Aluminum Alloy Casting Parts

Aluminum Alloy Casting Material Table

Alloy Grades	Alloy code	Major elements (mass fraction) (%)
Alloy Grades	Alloy code	Si	Cu	Mg	Zn	Mn	Ti	Al
ZAlSi7Mg	ZL101	6.5~7.5		0.25~0.45				Residuals
ZAlSi7MgA	ZL101A	6.5~7.5		0.25~0.45			0.08~0.20	Residuals
ZAlSi12	ZL102	10.0~13.0						Residuals
ZAlSi9Mg	ZL104	8.0~10.5		0.17~0.35		0.2~0.5		Residuals

Our Value-Added Services Beyond Aluminum Alloy Casting

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🛠 Precision CNC Machining
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🔥 Heat Treatment
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cURL Too many subrequests. cURL Too many subrequests., depending on the design and complexity. Our advanced investment casting processes allow us to achieve both small precision components and large structural parts.

We can produce castings from 0.02 kg up to 120 kg, depending on the design and complexity. Our advanced investment casting processes allow us to achieve both small precision components and large structural parts.

Aluminum alloy castings are widely used in automotive (engine and chassis parts, lightweight structures), aerospace (aircraft components), electronics (housings and heat sinks), construction machinery, and industrial equipment where weight reduction and corrosion resistance are critical.

What surface finishes and secondary processes are available for aluminum alloy castings?

We offer a wide range of finishing and machining options, including CNC machining, anodizing, powder coating, polishing, and heat treatment. These processes enhance surface quality, durability, and overall performance of the final component.