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Cnc Machining Aluminum

At Pintejin aluminum machining china company, we accept aluminum (aluminum) processing and custom-made from one point. Unlike iron and stainless steel, aluminum has the greatest advantage of being extremely lightweight. If you often carry it around, you can take advantage of the characteristics of aluminum in particular.

Aluminum is not only light, but also has excellent corrosion resistance and is resistant to rust, and is often used in products used outdoors. In addition, because it has excellent thermal conductivity and heat dissipation, it is often used for fins that emit high temperatures and parts of various machines, making it one of the materials used in a wide range of industries regardless of industry. ..

The Type Of Aluminum

Aluminum is extremely lightweight and is used in a wide range of products due to its properties such as corrosion resistance, thermal conductivity, and high conductivity, and it is the highest production metal among non-ferrous metals.

Few products are made of pure aluminum, and aluminum alloys are often used, and the characteristics vary depending on the type. Aluminum alloys are divided into “wrought materials” that can be plastically worked and “castings” that are used by solidifying molten metal with a mold, and there are “heat treatment type” and “non-heat treatment type” respectively. The wrought material is divided into 1000 to 7000 series depending on the added element, and is represented by the material symbol starting with “A”.

1000 series -pure aluminum

The 1000 series is aluminum with a purity of 99.0% or higher, and is also called pure aluminum. Due to its high purity, it has excellent thermal conductivity, conductivity, workability, and corrosion resistance, but its weak strength makes it unsuitable for structural parts. It has a good appearance and is used for reflectors, decorations, containers, lighting equipment, etc.

Typical 1000 series aluminum A1070

A1070 is aluminum with a purity of 99.7% or higher, and although its strength is low, it is easily plastically deformed by bending and drawing, and has excellent corrosion resistance. In addition, the higher the purity of aluminum, the better the conductivity and thermal conductivity, so it is used in heat exchangers and piping. In addition, the gloss after alumite is very beautiful, so it is also used for decoration.

2000 series -Al-Cu-Mg series alloy

The 2000 series is aluminum with copper (Cu) added, and is characterized by its excellent mechanical strength and machinability. It is mainly used for aircraft, transportation machine parts, and structural materials. “Duralumin” corresponds to 2000 series alloy A2017, and “super duralumin” corresponds to A2024, and boasts strength comparable to steel materials.

Although the addition of copper increases the strength, it reduces the corrosion resistance, so it is not suitable for use in corrosive environments such as seawater.

Representative 2000 series aluminum A2017

A2017 is an aluminum alloy containing copper (Cu) and magnesium (Mg) and is called “duralumin”. It has high strength and tensile strength comparable to that of iron and steel, and is used for aerospace equipment, screws, marine materials, etc.

Typical 2000 series aluminum A2024

A2024 is even stronger than A2017 (duralumin) and is also called “super duralumin”. Since the corrosion resistance is slightly reduced by adding copper, A2024PC, which supplements the corrosion resistance by pasting pure aluminum A1230 with high corrosion resistance, is often used, mainly for aircraft, spindles, bolts, various structural materials, etc. It is a use.

3000 series -Al-Mn series alloy

The 3000 series is aluminum with manganese (Mn) added, and its strength is slightly increased without impairing workability and corrosion resistance. Generally, increasing the strength tends to affect the corrosion resistance and workability, but the 3000 series is not much different from pure aluminum and is used for aluminum can bodies, building materials, containers, etc.

Typical 3000 series aluminum A3003

A3003 is aluminum with excellent moldability, weldability, corrosion resistance, and a little higher strength. It is used for general equipment, building materials, marine materials, fin materials, various containers, etc. A3004, which is an alloy equivalent to 3003 with 1% magnesium (Mg) added, is even stronger and is widely used as a material for aluminum cans, roof boards, door panel boards, etc.

4000 series -Al-Si series alloy-

Silicon (Si) Silicon-added aluminum has a low coefficient of thermal expansion and improved wear resistance, and is mainly used for forged pistons, panels for building materials, and core wires for welding rods. It also has a lower melting point than other aluminum alloys, and is also used as a welding filler and brazing material.

Typical 4000 series aluminum A4032

A4032 is an aluminum whose thermal expansion coefficient is suppressed to about 80% of other aluminum. Due to its low coefficient of thermal expansion, it is used in brake master cylinders, valves, bearings, etc. By adding copper (Cu), magnesium (Mg), nickel (Ni), etc. to silicon (Si), heat resistance is also improved, and it is forged and used for pistons and cylinder heads.

5000 series -Al-Mg series alloy-

The 5000 series is aluminum with magnesium (Mg) added, and has improved corrosion resistance and strength, and is also excellent in workability. It has a wide range of magnesium content of 0.5% to 5%, and has various characteristics depending on the ratio, and has a wide range of uses. Low magnesium material has high brilliance by polishing and is used for decorative materials, and high magnesium material has high strength, so it is used as structural material and ship material.

Typical 5000 series aluminum A5052

A5052 is aluminum with improved weldability and strength by adding magnesium (Mg). The strength is about the middle of aluminum alloys, and it can be said that it is a material that has both workability and strength. It also has excellent seawater resistance (corrosion resistance) and is generally used for aluminum ships and vehicles.

6000 series -Al-Mg-Si series alloy-

Aluminum with magnesium (Mg) and silicon (Si) silicon added, it is a highly versatile material with better corrosion resistance and strength than the 5000 series. Welding joint efficiency is low, and rivets and bolts are often used for joining.

Typical 6000 series aluminum A6061

A6061 is an aluminum material with a small amount of copper (Cu) added in addition to magnesium (Mg) and silicon (Si), and has strength equivalent to that of steel structural material SS400. Due to its good extrudability, it is often used in building sashes.

7000 series-Al-Zn-Mg series alloy-

Aluminum with zinc (Zn) and magnesium (Mg) added, which is the strongest of all aluminum alloys due to heat treatment curing. Aluminum in the 7000 series is divided into Al-Zn-Mg-Cu alloys containing copper and Al-Zn-Mg alloys containing no copper. Al-Zn-Mg-Cu alloys include A7075 (extra super duralumin) and A7N01 (for Shinkansen vehicles), which are characterized by their extremely high strength. Al-Zn-Mg alloy is also called a welded structural material and is known as an excellent aluminum material for welding.

Typical 7000 series aluminum A7075

A7075, an Al-Zn-Mg-Cu based alloy, is also called “extra super duralumin” and is the strongest aluminum material among aluminum alloys. Taking advantage of its characteristics, it is used in aircraft, vehicles and sporting goods.

* Details of aluminum material are explained here.

How To cnc machining Aluminum

When cnc machining aluminum, there are mainly “cutting”, “drilling”, and “welding”. When cutting, aluminum is not as hard as iron or stainless steel, so it can be cut relatively easily. Products made by bending a thin aluminum plate (rails, pipes, etc.) can be easily cut with an electric tool such as a tipped saw.

When manufacturing precision parts, we also support manufacturing by “machinening”.