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Aluminum 2014

aluminum 2014

Material Type

Metal

Material Name

Aluminum 2014

Alternative Names

3.1255 | 24345 | AlCu4SiMg | A92014

Process Compatibility

CNC Milling, CNC Turning

introduction

CNC Machining Aluminum 2014 

Aluminum 2014-metal part

Aluminum 2014 is a strong alloy widely used in aerospace. It's easily machinable in specific conditions and often formed into bars and profiles through extrusion.

It is a heat-treatable, high-strength material commonly used in CNC machining. Aluminum 2014 produces small, manageable chips during machining, easing chip evacuation. It responds well to heat treatment processes, with solution heat treatment followed by quenching and aging commonly employed to enhance its mechanical properties. However, its corrosion resistance is not as high as some other aluminum alloys, and precautions are needed during welding due to its copper content. For CNC machining, carbide tools are recommended, and proper cooling is important to dissipate heat and extend tool life. Optimal cutting speeds, feeds, and depths of cut, tailored to the specific machining operation, contribute to achieving high-quality surface finishes.

Aluminum makes up the majority of its composition. Copper is its primary alloying element, ranging from 3.9% to 5%. It has minor amounts of other elements such as the following: chromium not exceeding 0.1%, iron is limited to a maximum of 0.7%, magnesium between 0.2% and 0.8%, manganese spanning from 0.4% to 1.2%, silicon varying from 0.5% to 1.2%, titanium not surpassing 0.15%, and zinc capped at 0.25%. Additionally, each remaining element is limited to a maximum of 0.05%, and the total sum of all remaining elements combined is restricted to 0.15%. The combined percentage of titanium and zinc is set at a maximum of 0.2%.

Properties

Properties Table of Aluminum 2014

MECHANICAL PROPERTIES
Ultimate Tensile Strength  190-245 MPa
Yield Strength 100-125 MPa
Young's Modulus(Elasticity)  72-73.3 GPa
Elongation at Break 11-16 %
Physical Properties
Corrosion Resistance Poor
Magnetism Non-magnetic
Weldability Fair
Thermal Properties
Maximum Service Temperature 210°C
Thermal Expansion Coefficient 23-24.4 x 10^-6/°C
Thermal Conductivity 150-154 W/(m·°C)
Electrical Properties
Electrical Resistivity 4.32 μΩ*cm

TECHNOLOGY OVERVIEW

Basic Knowledge of Aluminum 2014

What is Aluminum 2014?

2014 aluminum alloy is widely used in the aerospace industry due to its strength and hardness. Before 1954, it was known by the industry designation "14S" before adopting The Aluminum Association alloy designations. It is easily machinable in certain conditions but challenging to weld as it tends to crack. Among the 2000-series aluminum alloys, it is the second most popular after 2024.

This alloy is commonly extruded and forged but has poor corrosion resistance. To address this issue, it is often coated with pure aluminum. If left uncoated and exposed to the elements, it is recommended to be painted for corrosion protection.

Advantages of Aluminum 2014

Excellent strength-to-weight ratio.

Suitable for efficient and precise machining.

Can undergo heat treatment for enhanced mechanical properties.

Good Formability

Can be welded using various techniques.

Retains strength at higher operating temperatures.

Commonly used in aircraft structures for weight reduction and strength.

Applications of Aluminum 2014

Aircraft components

Bicycle frames

High-pressure hydraulic pistons

Automotive suspension parts

Precision-machined parts

Electronic heat sinks

Marine structural elements

FAQ

Machining Aluminum 2014 Buying FAQ

Aluminum 2011 has better machinability but lower strength compared to 2014, which offers higher strength and better corrosion resistance. Additionally, 2011 is supplied in round bars while 2014 is supplied in bar and plate form.
The main distinctions between 2014 and 2024 aluminum lie in their copper content and properties. 2024 has higher copper, providing improved strength, while 2014 has better machinability and slightly lower strength.
Aluminum 2014 is soft and easy to weld with a lower melting point, while Aluminium 6061 is hard, difficult to weld, and has a higher melting point.

Other Materials

Aluminum-metal-Al 6063

Aluminum 6063

Aluminum 6063 is mainly composed of aluminum, magnesium, and silicon. Its excellent machinability makes it commonly used in CNC processes.

More info about Aluminum 6063

Aluminum 6061

Aluminum 6061 (CNC) is the most popular aluminum alloy. It has good strength-to-weight ratio, excellent machinability and natural corrosion resistance.

More info about Aluminum 6061
Aluminum 2024

Aluminum 2024

Aluminum 2024 is a widely used alloy known for its high strength-to-weight ratio and is popular in aerospace applications.

More info about Aluminum 2024

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