Aluminum 6063

Aluminum 6063 in CNC Machining

Aluminum 6063 is mainly composed of aluminum, magnesium, and silicon. Its excellent machinability makes it good for cutting, drilling, and shaping in CNC processes.

Typically used in its as-extruded state, it undergoes extrusion to create various profiles and structural components. The alloy is known for its anodization capability, enhancing corrosion resistance, and providing decorative finishes. It’s resistant to corrosion, particularly in outdoor settings. It can be welded using TIG (tungsten inert gas) or MIG (metal inert gas) methods but post-weld heat treatment may be needed for specific applications. CNC machining allows for tight tolerances and precision with Aluminum 6063 to produce intricate parts. The tooling and cutting speeds must be chosen carefully to prevent wear and ensure optimal surface finishes. Adequate cooling and lubrication during machining help manage heat and facilitate chip evacuation.

The composition of aluminum alloy 6063 is defined by specified ranges for various elements, presented as a percentage by weight. The alloy consists primarily of aluminum (Al) with a minimum content of 97.5% and a maximum of 99.35%. Other key constituents include magnesium (Mg) ranging from 0.45% to 0.90%, silicon (Si) from 0.20% to 0.60%, and iron (Fe) from 0% to 0.35%. Additionally, chromium (Cr), copper (Cu), manganese (Mn), titanium (Ti), and zinc (Zn) are present in minimal amounts, each ranging from 0% to 0.10%. The cumulative content of other miscellaneous elements is limited to 0.15% in total, with individual elements not exceeding 0.05%.

What is Aluminum 6063?

Aluminum 6063 is a versatile alloy known for its strength, corrosion resistance, and formability. Belonging to the 6000 series of aluminum alloys, it’s widely used in construction and architecture. The alloy’s standout feature is its high extrudability, allowing for easy shaping during manufacturing. These are why Aluminum 6063 is also called an architectural alloy or extrusion alloy.

Its corrosion resistance is important for outdoor applications. While not as heat-treatable as some other alloys, Aluminum 6063 can undergo processes like solution heat treatment and artificial aging to enhance its mechanical properties. Its weldability adds to its fabrication ease. Aluminum 6063 is adaptable to different manufacturing processes.