Aluminium Grades Commonly Used
CNC aluminium parts are typically manufactured from the following alloys:
Aluminium 6061 / 6061-T6 – general structural and mechanical use
Aluminium 6063 – appearance parts requiring better surface finish
Aluminium 5052 – corrosion resistance and stability
Aluminium 7075 – high-strength and load-bearing applications
Material selection is based on strength, weight, surface requirements, and service conditions.
Machining Scope (Result-Oriented)
CNC aluminium parts may include one or more of the following finished features:
Flat reference surfaces
Precision holes and slots
Threads and tapped holes
Pockets and stepped geometries
Complex contours and profiles
The emphasis is on final geometry and functional performance.
Dimensional Capability
Typical tolerance range: ±0.02 – ±0.05 mm
Controlled flatness and perpendicularity
Stable positioning for assembly features
Actual tolerance depends on part geometry and aluminium grade.
Surface Treatment Options
Surface treatment is selected according to functional or aesthetic needs:
As-machined surface
Anodizing (natural / black / color)
Sandblasting
Brushed finish
Polished finish
Powder coating
Surface processes are applied after dimensional confirmation.
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