In the early days of AIXI, there was actually a period of time when our factory only provided CNC machining services for aluminum materials. The surface hardness of aluminum materials is low, and high-power machines and equipment are not required. We only need to have common three-axis and four-axis machines to provide complete processing for most CNC aluminum parts. Compared to steel materials, the tools used to process aluminum materials have a longer service life. Single aluminum material processing is a very good choice for start-up companies.
AIXI has been processing aluminum materials for a long time, and we have rich experience in producing higher quality custom aluminum parts. After all aluminum materials are CNC machined, we will process the surface separately to make the overall look consistent, without knife marks, and smoother.
The surface of aluminum materials is very fragile, and it is easy to leave scratches when it comes into contact with the waste residue left by processing. So every time a step is completed (for example, CNC Turning Machining -> CNC Milling Machining -> Anodizing -> Packaging), we must use soft materials for protection.
Now AIXI has become a mature CNC machining service supplier. We have a complete range of lathes, three-axis, four-axis, five-axis and other large equipment, we can not only process aluminum parts of a few millimeters, but also provide five-axis processing for products up to 800mm. Stainless steel, brass, plastic and other materials are now also our areas of expertise.
Aluminum is defined as various types of aluminum alloys due to the addition of different alloying elements. Common aluminum alloy models: Aluminum 2024-T3, Aluminum 5052-H32, Aluminum 5083-H111, Aluminum 6061-T6, Aluminum 6082-T6, Aluminum7075-T6/T7351.
AL 2024 has good processing performance and good fatigue resistance, and is often used in automotive parts, bolts, and aircraft parts. 2024-T3 is mainly composed of aluminum, copper, and magnesium. Although it is highly strong, its weldability and corrosion resistance are slightly worse than those of other models.
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AL5052 aluminum alloy does not contain copper and uses magnesium as its main alloying element. It has excellent corrosion resistance and saltwater resistance, so it is suitable for wet and harsh environments such as acids and alkalis. Aluminum 5052 has good weldability and is usually used to make metal sheet parts.
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AL 6061 is one of the most widely used aluminum alloys. It is generally considered a general-purpose aluminum alloy with excellent processing performance, good weldability, and natural corrosion resistance. It is often used to make electronic parts, chassis housings, pistons, bicycle, and motorcycle parts.
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AL7075 has very good fatigue resistance, high strength, high hardness, corrosion resistance, and high heat resistance. It mainly uses aluminum, zinc, magnesium, copper, etc., as alloying elements. 7075 aluminum alloy is one of the strongest aluminum alloys. It is often used in aerospace and high-load parts such as shafts and gears.
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The most common surface finishing for CNC aluminum machining is anodizing, which is divided into Type II and Type III, as well as anti-UV oxidation.
Anodizing Type II: This surface treatment is mainly used for decorative products. It can give products various colors to achieve beautiful effects. Anodizing Type II is also the most common oxidation.
Anodizing Type II: This is a hard oxidation, which can be 20um-60um thick. This treatment technology can improve the wear resistance and mechanical strength of aluminum parts.
Anti-UV oxidation: As the name suggests, this type of oxidation is mainly used to resist ultraviolet rays and increase service life. It is often used for aluminum products used outdoors, such as motorcycles, bicycles, and other aluminum alloy products.
If the structure of the custom aluminum parts is very complex, and a large number of dimensions do not require precise tolerances, or some parts are hollow, or even where the tool cannot be processed, we must consider other processes to complete aluminum processing, such as 3D printing, forging, casting, extrusion, etc. Finally, we combine CNC machining to complete some parts, such as precision holes.
Contact UsExtrusion is a manufacturing process that creates continuous and uniform cross-sections by pushing aluminum blocks into a die through pressure. Extrusion can be divided into metal extrusion, plastic extrusion, and rubber extrusion. During the process of extruding aluminum, the material is plastically deformed. With a fixed cross-section, aluminum materials can be formed into thin walls, hollow tubes, or special shapes.
Extrusion is usually combined with CNC to remove excess material, drill holes, tap, etc., to achieve the final state of the required parts.
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Forging is a process that changes the shape of a metal bar or block through high pressure. Through the forging die, we complete the appearance of the product and can improve certain mechanical properties of the product.
Aluminum forgings complete most of the appearance. This saves CNC material removal time and reduces CNC manufacturing costs. Compared with complete CNC machining, forging + CNC parts are stronger.
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3D printing aluminum is a process of additive manufacturing. This technology can make hollow parts to reduce the weight of the product. And it can manufacture complex and heterogeneous products.
However, 3D printing’s tolerance is not very stable. Therefore, it is usually necessary to combine CNC to complete some precise parts and parts that require smooth surfaces.
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Like other CNC machining materials, aluminum machining requires programming the computer and then debugging the machine to cut, turn, mill, drill, tap, and perform other processes on metal or plastic materials.
Aluminum materials are not only easy to process but also light in weight (therefore low transportation costs), durable, and cheap. This has great advantages for quickly confirming the use of prototypes and final products.
Aluminum alloy materials are a popular choice for processing. 50% of our company’s annual orders are completed through aluminum alloy processing.
AIXI provides one-stop CNC machining aluminum alloy services. We have complete equipment for turning, turning and milling, five-axis, drilling, etc. Aluminum alloy surface treatment types include sandblasting, alodin, anodizing type II and III, powder coating, chrome plating (IRIDITE NCP), nickel plating, silk screen, etc.
Aluminum is a metal element with the symbol Al. It is a ductile silvery-white light metal. In humid air, it can form an oxide film to prevent metal corrosion. Aluminum is easily soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide, and potassium hydroxide solutions but is insoluble in water. Relative density 2.70. Melting point 660℃. Boiling point 2327℃.
Aluminum alloys are often used in various industries, including audio, lamps, bicycles, motorcycles, and aerospace. It has always been a popular material for designers and engineers. There is no doubt that aluminum alloys have been proven to have too many advantages when making turning and milling products.
Easy to process: Aluminum alloys have stable processing performance and are easy to turn, mill, and drill. They are often used for bending, making chassis shells, etc.
Lightweight: For commonly used CNC machining metal materials, aluminum is almost the lightest metal, so it will have greater advantages in transportation costs.
Low cost/corrosion resistance / good conductivity
Aluminum is a popular material for machining and has excellent performance. Aluminum alloy metals are involved in almost every industry.
1. Extensive project experience
Since AIXI was founded, we have manufactured tens of thousands of different types of aluminum parts. We have rich experience in various aluminum grades and corresponding surface treatments.
2. Dynamic team
If you urgently need custom aluminum parts, AIXI can set up a temporary team to process and deliver your project quickly. We have sufficient capacity to cope with urgent large-scale production needs.
3. MOQ 1pcs
Most companies always have certain requirements for order quantities. AIXI is an expert in rapid prototyping, providing CNC machining services from prototype to mass production.
4. Competitive price
Professional engineers always save processing time by optimizing tool processing paths. Even with one programming, we can process multiple products. With the same material cost, we can achieve lower processing costs.
5. Complete surface treatment
AIXI can provide complete surface treatment services, such as anodizing, electroplating, painting, powder coating, and chromate passivation. Therefore, you can get the final parts directly from our factory.
6. Professional packaging
If it is a common small-volume part, we will pack it separately in blister boxes. If it is an irregular large-volume part, we will pack it separately in bubble cotton and anti-collision cotton.
Series 1 contains more than 99.00% aluminum and has good electrical conductivity, corrosion resistance, and welding performance; however, its strength is low, and it cannot be strengthened by heat treatment. High-purity aluminum (more than 99.9% aluminum content) is mainly used in scientific experiments, the chemical industry, and special purposes.
Aluminum alloys containing copper as the main alloying element also add elements such as manganese, magnesium, lead, and bismuth to enhance machinability. 2011 alloy, pay attention to safety protection during the melting process (hazardous gas will be produced). The 2014 alloy is used in the aviation industry and has high strength. The 2017 alloy has a lower strength than the 2014 alloy, but it is easier to process, and the 2014 alloy can be strengthened by heat treatment. It is often used in the aviation industry (2014 alloy), screws (2011 alloy), and industries with high service temperature (2017 alloy).
Aluminum alloys with manganese as the main alloying element cannot be strengthened by heat treatment. They have good corrosion resistance and welding performance. Their plasticity is close to that of super aluminum alloy. They are used in the oil guide seamless pipe (alloy 3003) and cans (alloy 3004) used in aircraft.
The 4 series of aluminum profiles are mainly made of silicon, and some can be strengthened by heat treatment. 4032 has good heat and friction resistance and a small thermal expansion coefficient. It is commonly used in pistons and cylinder heads. 4043 has less solidification shrinkage and naturally develops color after sulfuric acid anodizing treatment turns gray. It is commonly used in welding lines and building panels.
Series 5 aluminum profiles are mainly magnesium. They have good heat resistance, welding performance, and fatigue strength, but they cannot be strengthened by heat treatment and can only be improved by cold working. They are often used in lawn mower handles, ducts of aircraft fuel tanks, and body armor.
The strength of 5005 is the same as that of 3003. It has good processability, weldability, and corrosion resistance. It has good finishing and processing after anodizing. It is commensurate with the color of 6063 profiles. 5052 is the most representative alloy with medium strength. It has good corrosion resistance, weldability, and formability, especially high fatigue strength, and good seawater resistance. It is generally suitable for sheet metal, ships, vehicles, construction, bottle caps, and honeycomb plates.
Generally, the aluminum materials at the mid-range and above are basically 6 series. Aluminum-magnesium-silicon alloy is a composite material composed of three metals, aluminum, magnesium, and silicon, and is currently the most widely used alloy. 6063 and 6061 are the most used, followed by 6082, 6160, 6125, 6262, 6060, 6005, and 6463; 6063, 6060, and 6463 are relatively low in strength in 6 series. 6061 has medium strength, good corrosion resistance, good welding performance, good process performance (easy to extrude), and good oxidation coloring performance.
7072 electrode potential is low, mainly used for anti-corrosion covering leather, and also suitable for heat exchanger fins. 7075 is one of the alloys with the highest strength in aluminum alloys but poor corrosion resistance. 7075 hardenable alloy, Good resistance to stress corrosion cracking, suitable for thick plates, forgings, aircraft, and high-speed rotating bodies.
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