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アルミニウム

高い切削性と延性、優れた強度対重量比。

Aluminum in CNC Machining

Aluminum is one of the most widely used materials in CNC machining because of its excellent machinability, lightweight design, corrosion resistance, and strong strength-to-weight ratio. It can be machined at high speeds while producing accurate features and smooth surface finishes.

Aluminum alloys are suitable for both prototypes and production parts across industries such as aerospace, automotive, electronics, robotics, medical equipment, and consumer products. Different aluminum grades offer varying levels of strength, hardness, machinability, and corrosion resistance, allowing manufacturers to select the right material for each application.

At Elite Mold Tech, aluminum CNC machining supports complex geometries, tight tolerances, and a range of surface finishing requirements.

価格

$$$

リードタイム：

< 10日以内

壁の厚さ：

0.75 mm

公差：

±0.125mm (±0.005″)

最大部品サイズ：

200 x 80 x 100 cm

対象学年：

6061, 7075, 2024

アルミニウム6061

Aluminum 6061 is one of the most commonly used aluminum alloys for CNC machining. It offers a good balance of strength, machinability, corrosion resistance, and weldability, making it suitable for a wide range of general-purpose and industrial components.

Tensile Strength, Yield (MPa) 276

Fatigue Strength (MPa) 96.5

Elongation at Break (%) 12

Hardness (Brinell) 95

Density (g/cm³) 2.70

アルミニウム 7075

Aluminum 7075 is a high-strength aluminum alloy commonly used when strength-to-weight performance is critical. It provides higher strength than 6061 and is widely used for aerospace, automotive, tooling, and high-performance components.

Tensile Strength, Yield (MPa) 503

Fatigue Strength (MPa) 159

Elongation at Break (%) 11

Hardness (Brinell) 150

Density (g/cm³) 2.81

Aluminum 2024

Aluminum 2024 is a high-strength aluminum alloy known for its excellent fatigue resistance and strength-to-weight ratio. It is commonly selected for aerospace and other applications where high mechanical performance and lightweight construction are required.

Tensile Strength, Yield (MPa) 324

Fatigue Strength (MPa) 138

Elongation at Break (%) 19

Hardness (Brinell) 75

Density (g/cm³) 2.78

Surface Finishing Options for Aluminum

Aluminum CNC machined parts can undergo different surface finishing processes to improve appearance, corrosion resistance, wear resistance, and overall performance.

機械加工
ビーズブラスト
Anodizing Type II & III
パウダーコーティング
Brushed Finish
研磨
電解研磨
絵画
タンブリング

Pros and Cons of Aluminum CNC Machining

Aluminum machining offers an excellent combination of lightweight construction, strength, machinability, and corrosion resistance. However, the right aluminum alloy and finishing process should be selected according to the requirements of the application.

Excellent Machinability: Aluminum is easy to machine at high cutting speeds, helping reduce machining time and production costs.
Lightweight: Its low density makes aluminum ideal for applications where weight reduction is important.
Good Strength-to-Weight Ratio: Aluminum alloys such as 6061 and 7075 provide strong mechanical performance while remaining lightweight.
Corrosion Resistance: Aluminum naturally forms a protective oxide layer that provides resistance to corrosion.
Versatility: Different aluminum grades and finishing options make the material suitable for a wide range of industries and applications.

Lower Hardness: Aluminum is generally softer than steel, which can make it less suitable for applications requiring extreme wear resistance.
Thermal Expansion: Aluminum expands and contracts more with temperature changes than many other engineering metals.
Surface Damage: Uncoated aluminum surfaces can be more susceptible to scratches, dents, and cosmetic damage.