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Aluminum CNC Machining

5-Axis CNC Milling Machine
Aluminum Machining on 5-axis Milling Machine

We manufacture aluminum parts on CNC machines that are precision calibrated to your specifications. Besides CNC milling and turning aluminum, GTA offers stress relief and surface conditioning services. Our precision CNC machining capabilities include 2024, 6061, and 7075 aluminum grades to name just a few.

CNC Machining Aluminum Material

     Aluminum is an excellent choice for a material due to its low density, high strength-to-weight ratio,  excellent corrosion resistance, high conductive of electricity and offers lot more benefits. As a result of these excellent properties, CNC machined aluminum has become the metal of choice in various industries including automotive and aerospace. However, when using aluminum for building or manufacturing, it is imperative to ensure that the proper precautions are taken while machining to ensure that the material doesn’t warp or crack, otherwise the product will be less desirable.

Part Inspection During Machining
Part inspection during CNC Machining

Aluminum Parts

 In a wide range of industries, aluminum is a preferred material because of its excellent machineability and interesting thermal properties. The ease of machining aluminum is one of the main reasons engineers choose CNC aluminum machined parts. It is possible to anodize aluminum in a wide range of colours, and aluminum can also be recycled easily.
Aluminum is lightweight and has high strength to weight ratio, Also non-magnetic and non-flammable properties makes it perfect material for most industries. High electrical conductivity makes it perfect for electrical applications. As aluminum is lightweight, it is a great choice for parts in aerospace applications that need to be kept light. The ease of extruding aluminum makes it suitable for producing complicated shapes. Extrusions made of aluminum are used in a wide range of commercial, aviation and consumer products.

  Here are some of the most commonly used aluminum grades.


The 6061-aluminum grade is the most commonly used aluminum grade today. The 6061 alloy is corrosion resistant and easily machined. The 6061-t6 material is easy to weld and cast.

 This temper 6061 aluminum alloy has been treated to maximize precipitation hardening. A minimum ultimate tensile strength of 290MPa(42ksi) is required, as is a minimum yield strength of 240MPa (35ksi).


The ultimate tensile strength of T6 temper 7075 is 74,000–78,000 psi and the yield strength is 63,000–69,000 psi. Approximately 5–11% of its length is elongated when it fails.

Zinc is the primary alloying element in 7075 aluminium alloy. Good ductility, high strength, toughness, and resistance to fatigue are some of its outstanding mechanical properties. The alloy has been extensively used in aircraft structural parts since it is one of the most widely used aluminium alloys.


The 2024 aluminium alloy is an aluminum alloy containing copper as the primary alloying element. A good fatigue resistance and high strength-to-weight ratio make it an excellent choice for applications that require high strength to weight ratios. Only friction welding can be used to weld it, and it is very machinable. Since it has poor corrosion resistance, aluminum or Al-1Zn are often clad over it for protection. However, this may reduce the fatigue strength. 

Typically, 2024 is extruded, but it is also available in sheets and plates as well as alclad. The ultimate tensile strength of T3 temper 2024 sheet is 400–430 MPa (58–62 ksi), and the yield strength is 270–280 MPa (39–40 ksi). Ten to fifteen percent of its length is elongated.

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