Aluminum CNC Machining
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Aluminum is a lightweight, durable, and versatile material, making it ideal for industries such as aerospace, automotive, electronics, and more.
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What is Aluminum CNC Machining?
Aluminum CNC Machining is a highly efficient and precise manufacturing process that leverages the lightweight, durable, and corrosion-resistant properties of aluminum to produce complex, high-quality parts for industries such as aerospace, automotive, electronics, medical devices, and robotics.
Its excellent machinability, thermal conductivity, and strength-to-weight ratio make aluminum a preferred material for creating custom components, prototypes, and end-use parts with tight tolerances and smooth finishes.
Why Choose Aluminum CNC Machining?
Lightweight & Strong
Aluminum offers an excellent strength-to-weight ratio, perfect for applications requiring durability without added bulk.
Corrosion Resistance
Naturally resistant to corrosion, aluminum ensures long-lasting performance in demanding environments.
Machinability
Aluminum is easy to machine, allowing for complex geometries and tight tolerances with exceptional surface finishes.
Cost-Effective
Its availability and machinability make aluminum a cost-efficient choice for prototyping and production.
Types of Aluminum Alloy
Aluminum Subtypes
Tensile Strength, Yield (MPa)
Fatigue Strength (MPa)
Elongation at Break (%)
Hardness (Brinell)
Density (g/cm³)
Aluminum 2024
345
138
18
120
2.78
Aluminum 5052
193
117
12
60
2.68
Aluminum 6061
276
96.5
17
17
2.7
Aluminum 6063
214
68.9
12
73
2.7
Aluminum 7050
490
160
11
147
2.83
Aluminum 7075
503
159
11
150
2.83
Aluminum CNC Machining Parameter
Parameter
Typical Value
Description
Spindle Speed
10,000 - 20,000 RPM
High spindle speeds are typically required for aluminum machining to achieve good surface finish and efficiency.
Spindle Power
5 - 15 kW
Select appropriate power based on cutting depth and tool diameter.
Feed Rate
500 - 2,000 mm/min
Feed rate should match spindle speed to avoid tool wear or material overheating.
Cutting Depth
80.0 - 100
Use larger cutting depths for roughing and smaller depths for finishing to improve precision.
Cutting Width
0.5 - 5 mm
Cutting width is typically 50%-75% of the tool diameter to balance efficiency and tool life.
Machining Accuracy
±0.01 - ±0.05 mm
Aluminum machining offers high precision, making it suitable for precision parts.
Surface Roughness
Ra 0.8 - 3.2 μm
Optimize cutting parameters and tool selection to achieve a smooth surface finish.
Tool Type
Carbide End Mill, Ball Nose Mill, Drill Bit
Select the appropriate tool type based on machining needs, such as end mills, ball nose mills, or drill bits.
Tool Diameter
3 - 12 mm
Tool diameter affects machining accuracy and cutting force; choose based on part size.
Coolant Type
Water-soluble Coolant, Air Coolant
Use water-soluble coolant or air cooling to prevent chip adhesion and reduce temperature.
Chip Load
0.05 - 0.15 mm/tooth
Chip load affects cutting efficiency and tool life; adjust based on tool and material.
Ramp Angle
3° - 5°
Ramp angles reduce tool impact and extend tool life.
Stepover
30% - 70% of Tool Diameter
Stepover affects surface quality and machining efficiency; typically 30%-70% of tool diameter.
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