Aluminum is a lightweight material known for its corrosion resistance and ease of machining. When strengthened through additional alloying and heat treat conditioning, aluminum becomes a material that provides strength similar to mild, low carbon alloy steel, making it ideal for a range of aluminum casting applications. It is because of these physical and mechanical property improvements that aluminum alloy castings are being more commonly used in various environmental conditions throughout many industries.
Process of Aluminum Alloy Investment Casting
...Qianhao is a leading Aluminum Alloy Investment Casting products supplier...
Aluminum Alloy investment casting is a versatile solution used by a range of industries including military, aerospace, medical, automotive, heavy truck, agricultural,
firearms and others. It can be used for numerous parts and components including valves, medical devices, levers, appliances, hand tools, brackets, automotive parts, aircraft components, and machinery.
Making the die or pattern for the intended workpiece is the first step in the procedure. Next, wax is used to create the pattern.
It can be carved by hand from a block of wax, poured into a die using injection molding, or printed using a 3D printer and the right wax material.
The wax pattern can be put together with other wax patterns and fastened to a wax rod or sprue so they can all be cast simultaneously.
A ceramic slurry known as the investment is then supplied in one of two methods after being safely linked. First, to establish a consistent
surface and thickness, the cluster of designs is repeatedly dipped into the investment and removed. The alternative method involves:
Placing the cluster in a flask
Adding the investment
Shaking the flask to let anytrapped air out, ensuring the investment has filled all the gaps
The next step is drying, which the manufacturers can hasten by putting the assembly in a vacuum or using a fan. After drying, the assembly is placed upside-down in an oven or furnace. The wax vaporizes or melts, dripping out.
The mold is next heated to remove any wax or moisture that may still be present; this process is known as burnout. In place of the wax,
liquid aluminum is poured and drawn in using centrifugal casting, vacuum, positive air pressure, or gravity methods.
Each piece of work is examined for flaws. Any are removed, and the material is recycled if any are discovered.
Utilizing various finishing techniques on the workpieces is the final phase in the investment casting process. To get the desired results, they can be machined, smoothed, coated, sanded, etc.
How are Aluminum Alloy Investment Castings Made?
...How do we make the Aluminum Alloy Investment Casting products...
Aluminum Alloy Casting Materials
Aluminum alloys are used for investment casting a wide range of components including those for aircrafts and engines including fittings, housings, levers, valves, impellers, and more. Our aluminum alloy casting material options include:
A356:The alloy contains silicon, magnesium, iron and zinc. It provides excellent corrosion resistance and good weldability and can be heat treated to improve strength. It is one of the most commonly used aluminum alloys and is a good substitute for 6061 aluminum bar stock.
C355: contains silicon, iron, copper, manganese, magnesium, zinc and titanium. It offers increased strength compared to A356 and is often used in applications requiring strength at higher temperatures.
A357: It is composed of silicon, beryllium, iron, copper, magnesium, titanium, zinc and manganese. It is typically used for structural components as it is one of the highest strength aluminum alloys.
F357:is a beryllium free variant of A357.
Why choose Qianhao Aluminum Alloy Investment Castings
Our Capabilities for Carbon Steel Investment Castings
We are well equipped and experienced to produce carbon steel castings with tight tolerances and outstanding repeatability.
We use modern melting methods to produce carbon steel investment castings with consistent hardness and strength.
We also perform secondary operations such as machining of critical surfaces and threaded holes and can provide anti-corrosion properties of the parts using surface treatments like plating or other coatings as required. Carbon steel cast parts are also commonly heat treated to improve their ductility, strength and other mechanical properties. Our team consists of experts who have extensive experience working with a wide range of carbon steels. Our investment casting manufacturing process is certified to AS9100 and ISO 9001.
Precision Machining Services
Starting from machining and dedicated to machining for 30 years, Qianhao is matchless regardless of technology, equipment and capacity in the industry.
Machining operation is the core and biggest competitiveness of Qianhao. It is not a workshop, but a factory which has been equipped with advanced and complete equipment,
and has a complete management team. There have in place independent engineering team, production team, QA team and Supply Chain team to support its activities.
The machining blanks cover raw (steel) castings from Huawei foundry and outsourced iron castings, forgings, profiles, etc.
The company's powerful machining capabilities is the strong pillar for providing customer with precision machined castings & forgings and profiles.Our capabilities include turning, milling ,
tapping, broaching, drilling, & many other processes to fit your needs.
Surface Treatment Services
Qianhao is located in one of the most developed industrial areas of China, which means a rich supporting industrial chain give strong impetus to our industrial development. All surface treatments are available around us and these plants meet and pass the government's environmental requirements. They have rich experience in processing export products. They are also our trusted partners. Except painting, other surface treatment jobs are contracted to them.
| ● KTL（E-coating) | ● Zinc Plating |
| ● Mirror Polishing | ● Sand Blasting |
| ● Acid Pickling | ● Black Oxide |
| ● Wet Painting | ● Hot Galvanizing |
| ● Powder Coating | ● Nickel Plating |
| ● Vibration grinding | ● Anti Rust Dip |
Aluminum Alloy Investment Casting Products We Have Made for Our Customers
Qianhao handles each job with an optimal process to achieve the lowest cost, best quality, and highest efficiency.
How We Control Our Investment casting Products Quality
Quality is central to everything we do. It is our level of commitment to deliver a high quality product, ensured by a tight process control, that means we are able to repeatedly exceed our customers’ expectations.
Every employee at Qianhao is responsible for vigilantly watching over every step of our input and output processes.Our products go through strict quality checks at every workstation to achieve maximum quality control
for each manufacturing process.
Qianhao facilities is equipped with 40 plus state-of-the-art testing equipment in our industry, including Spectrometer,
Metallographic Microscope, Tension Tester, Low Temperature Tester, X-ray Tester, MPT, UT, CMM, Video Measurement Machine,
3D Scanner and so on. The strict testing and inspection processs guarantee high quality of our products in the aspects of chemical composition,
mechanical properties, non-destructive testing and high precise dimensional inspections.
Aluminum Alloy Investment Casting With Qianhao Foundry
Steadfast devoting to the field of precision casting and machining for 30 years
Qianhao is a leading and globally recognized brand for complex and high-tech castings in the area of automobile, rail, construction equipment, material handling equipment and agricultural machinery.
Steadfast devoting to the field of precision casting and machining for 30 years and with strong engineering capabilities, complete quality assurance system and advanced management system, and deep industry expertise,our world class foundry provides these global industry leaders and medium-to-high end western customers with the highest quality products, services and solutions.
Top 500 Companies Choose to Cooperate with Us
We have many OEM customers in railway, automobile, construction equipment, material handling equipment industries and have become the important supplier of the Top 500 companies in the world.
FAQ of Aluminum Alloy Investment Castings
1. What are Aluminum Alloy investment castings?
Aluminum Alloy is a lightweight material known for its corrosion resistance and ease of machining. When strengthened through additional alloying and heat treat conditioning, aluminum becomes a material that provides strength similar to mild, low carbon alloy steel, making it ideal for a range of aluminum casting applications. It is because of these physical and mechanical property improvements that aluminum alloy castings are being more commonly used in various environmental conditions throughout many industries.
2: Where is Aluminum Alloy Investment Castings are used?
Aluminum investment casting is a versatile solution used by a range of industries including military, aerospace, medical, automotive, heavy truck, agricultural, firearms and others. It can be used for numerous parts and components including valves, medical devices, levers, appliances, hand tools, brackets, automotive parts, aircraft components, and machinery.
3: What are the benifits of Aluminum Alloy Investment Castings?
Aluminum alloy casting is a highly versatile process that provides a range of additional benefits, including:
1.High strength-to-weight ratio
2.Excellent chemical stability
3.Superior corrosion resistance
4.Resistance to high temperatures
5.Outstanding thermal and electrical conductivity.
Smooth as-cast surface finish
4: What is the process of Aluminum alloy investment casting?
- Create wax pattern: A pattern that replicates the finished part geometry is made using one of two primary methods:
- Wax Assembly: Next, the wax patterns are assembled onto runners and into a finished tree which is ready to be dipped.
- Slurry Coating: The assembly is then dipped into a high-grade ceramic slurry to build a ceramic shell around the wax tree.
- Stuccoing: After the slurry coating is done, particles of sand are dropped onto the surface of the wet tree assembly. This helps to thicken and strengthen the layer of coating on the wax assembly surface.
- Repeat Steps 5 and 6: Repeat steps 5 and 6 until the assembly achieves the desired shell thickness. The assembly is then allowed to set and dry.
- Dewaxing: The wax inside the newly built shell is now removed. Dewaxing is done using a steam-dewaxing autoclave or flash fire furnace.
- Casting: Now the desired molten metal is poured into the pre-heated mold cavity.
- Cooling: The mold then sits to allow the molten metal to cool and solidify which then becomes the final casting.
- Shell Removal: The shell material is then removed through processes hammer knockout, vibration, and steel grit blasting.
- Cut Off: The finished parts are then cut free from the gating and runner system.
- Finishing: Various finishing techniques are then employed including grinding, sand blasting and coating to achieve the final surface needed.
- Testing: Once the finishing operations are done, the parts are inspected for surface and sub-surface defects. Visual and fluorescent penetrant inspection is done for surfaces and X-ray is employed for sub-surface defect identification.
5: How about the Aluminum Alloy A356 Casting?
A356 and 356 aluminum alloy castings are for aerospace and industrial applications. Aluminum A356 provides moderate strength, excellent castability,
weldability and pressure tightness and is categorized as Cast Aluminum Alloy with the following composition:
Alloy A356 Composition:
92.05% Aluminum (Al)
7.00% Silicon (Si)
0.35% Magnesium (Mg)
0.20% Iron (Fe)
0.20% Copper (Cu)
0.10% Manganese (Mn)
0.10% Zinc (Zn)