Aluminum CNC machining generally refers to CNC machining aluminum alloy, not pure aluminum. The aluminum content of pure aluminum is at least 99.0%, and the hardness is not enough, so it is not suitable for CNC machining aluminum parts.

Aluminum alloy is a material that adds a certain amount of other alloying elements based on aluminum, and is one of the light metal materials. In addition to the general characteristics of aluminum, aluminum alloys also have specific characteristics of some alloys due to the different types and quantities of alloying elements added. The density of aluminum alloy is 2.63-2.85g/cm3, it has high strength (σb is 110-650MPa), its specific strength is close to that of high-alloy steel, its specific stiffness exceeds that of steel, it has good casting performance and plastic processing performance, and good electrical conductivity , thermal conductivity, good corrosion resistance and weldability, can be used as structural materials, and has a wide range of applications in aerospace, aviation, transportation, construction, electromechanical, light and daily necessities.

Aluminum alloy has the characteristics of low density, good mechanical properties, good processing performance, non-toxic, easy to recycle, good electrical conductivity, heat transfer and corrosion resistance, etc. It is widely used in marine industry, chemical industry, aerospace, metal packaging, transportation, etc. Widely used in the field

As with other metals, the most important standards for aluminum are the European EN (European Standard), the American SAE and ASTM, the Japanese JIS, the international ISO and the BRIC standards: Chinese GB and YB, Indian IS, Brazilian NBR and Russian GOST.

Then the following lists the aluminum alloy models, properties and applications commonly used in our CNC machining industry according to European standards (EN):

Aluminum ModelMachinabilityAdded ElementsApplication
5052 aluminumGood formability, corrosion resistance, weldability, medium strengthmagnesiumUsed in the manufacture of aircraft fuel tanks, oil pipes, and sheet metal parts for transportation vehicles and ships, instruments, street lamp brackets and rivets, hardware products, electrical shells, etc.
6061 aluminumExcellent processing performance, good electroplating, corrosion resistance, high toughness and no deformation after processing, dense material without defects and easy to polish, easy color film, excellent oxidation effectmagnesium and siliconAerospace fixtures, electrical fixtures, communication fields, automated mechanical parts, precision machining, mold manufacturing, electronics and precision instruments, SMT, PC board solder carriers, etc.
6063 aluminumDepending on the added trace elements, different material properties will be obtainedMg and SiFrames of architectural aluminum doors, windows and curtain walls
7075 aluminumHigh-strength heat-treatable alloy, good mechanical properties, easy to process, good wear resistance, good corrosion resistance and oxidation resistance.Zinc, magnesium, silicon, othersAerospace industry, blow molding (bottle) mold, ultrasonic plastic welding mold, golf head, shoe mold, paper mold, foam molding mold, dewaxing mold, template, fixture, mechanical equipment, mold processing, used to make high-end Aluminum alloy bicycle frame
Machinable aluminum alloy material list

There is no aluminum alloy material you want in the above table? Don’t worry, tell us the aluminum alloy model you want to process and get a quote for CNC machining aluminum through the contact form below: