Aluminum Investment Castings
Aluminum is a lightweight, corrosion resistant alloy commonly used for investment cast components. At Milwaukee Precision Casting, Inc., we pour aluminum A356 for project critical parts such as pump impellers & housings, covers, plates, high velocity blowers, and more.
Our precision investment casting process starts with a precise wax pattern, which we use to create a durable ceramic mold. Once the mold is ready, we pour molten aluminum alloy into it, crafting castings with exceptional precision and detail. We take pride in delivering A356 aluminum investment castings with an impressive ±0.005 inch/inch linear tolerance—an essential quality that sets us apart as a top-tier investment casting manufacturer.
Aluminum Alloy Investment Casting Heat Treatments
Depending on your needs relative to strength and ductility, we have the capabilities of providing heat treatment for Aluminum Castings:
- T2 (anneal)
- T4 (solution treat & naturally age)
- T5 (high-temperature forming & artificial age)
- T6 (solution treat & artificially age)
- T61* (solution treat, quench, and age)
*T61 heat treatment is for maximum strength of up to 40K PSI tensile for aluminum alloy castings.
A356 Aluminum Alloy Casting
A356 is a cast aluminum alloy with impressive corrosion resistance, strength, and ductility, comparable to stainless steel, except aluminum is much lighter in weight. This makes A356 ideal for aluminum investment casting parts.
| Alloy | Common Usage | Applications | More Details |
A356 |
Housings, covers, plates Aluminum is weldable, heat treatable, and highly corrosion resistant. |
Precision Aluminum Investment Cast Parts
For decades, Milwaukee Precision Casting, Inc. has been producing aluminum investment castings for critical industries, such as pump & valve, oil & gas, petrochemical, medical, firearms, and more.
Aluminum is a commonly cast alloy for essential components as a lightweight alternative to stainless steel. We currently pour aluminum alloy A356, which is an alloy made of aluminum, silicon, magnesium, iron, copper, manganese, and zinc.
We also offer secondary services for our investment castings, such as machining, heat treating, plating, and non-destructive testing.
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What are the benefits of Aluminum Investment Casting?
Aluminum investment castings are lightweight compared to other alloy types, which makes it ideal for weight sensitive applications such as automotive. They also have excellent stability under different environments, including high temperatures and atmospheric changes that require parts tolerant to high stress. Additional benefits of Aluminum Investment Alloy casting include:
- Corrosion Resistance: Protective oxide layer naturally forms making aluminum cast parts suitable for any outdoor or marine applications
- Design Flexibility: Helps with complex geometries and intricate features
- Smooth Surface Finish: Reduces additonal machining or finishing services
Aluminum Casting Gallery
Aluminum Casting FAQ
We cast aluminum A356, which is a comparable alloy to 6061. A356 is a strong, lightweight alloy more suitable for investment casting.
Our standard surface finish for aluminum investment castings is 100-125 rms. We also offer secondary surface finish services such as plating and electro-polishing.
Aluminum investment castings are commonly heat-treated for improved strength. Most of the time, aluminum, A356 will call for T6 heat treatment. Additionally, we can provide T2, T4, T5, and T61 depending on the needs of the casting.
Industries Served
Milwaukee Precision Casting, Inc. has provided investment casting solutions casting stainless steel, aluminum and other precision cast alloys for quality-minded companies in industries including:
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