Aluminum alloy is an alloy material formed by adding copper, silicon, magnesium, zinc, manganese and other elements on aluminum matrix. aluminum alloy has the characteristics of low density, high strength, good plasticity, excellent electrical and thermal conductivity, strong corrosion resistance, etc., so it is also commonly used in CNC machining.
CNC processing and die casting production is not the same, CNC can only process aluminum alloy sheet, die-casting aluminum ingot, not suitable for CNC processing, because die-casting aluminum ingot too many bubbles, resulting in processed parts, there are many pores/lack of material, not good repair/polishing.
One of the advantages of CNC processing aluminum parts is that parts can be anodized, anodizing can make parts beautiful, corrosion resistance, wear resistance, resistance to electricity, oxidation resistance, increase hardness and other advantages, the current die-cast aluminum alloy model, there is no suitable for oxidation of materials, which is also one of the reasons why most designers choose CNC processing aluminum parts.
If you just need to use CNC to process aluminum alloy parts, then we collate this information, I believe that can help you better choose the model of aluminum alloy. The table clearly lists the different physical properties and application scenarios of different aluminum alloy models.
| Material | Type | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation （%） | Hardness | Suitable parts | Post-processing |
|---|---|---|---|---|---|---|---|
| Aluminium alloy | AL6061-T6 | >290 | >240 | >9 | HB90-HB110 | Industrial structural parts, such as trucks, tower buildings, ships, trams, railway vehicles, furniture mechanical parts, precision machining, molds, etc . | Anodizing, Painting,Spray powder,Electroplating, Vacuum plating,Brushed,Teflon coating,Welding etc. |
| AL5052-H32 | 210-260 | >130 | ≥6 | 8.5-11.5 | Automobile engine outer plate, bus trunk plate, bus anti-slip decorative plate and automobile oil tank aluminum plate, etc Traffic vehicles, ships sheet metal parts, meters, street lamp brackets and rivets, hardware products, electrical shell, etc Mailboxes, gasoline or lubricant conduits, various liquid containers, and other low-load parts for deep drawing | ||
| AL7075-T6 | >538 | >475 | >7 | HB140-HB165 | High strength, high stress structural parts, especially in aerospace, transportation and mold manufacturing and other fields have a wide range of applications. Manufactures aircraft components such as load bearing components, landing gear and propellers. | ||
| AL6082-T6 | ≥310 | ≥260 | ≥10 | HB95 | Used in construction profiles, irrigation pipes, tubes, rods, profiles for vehicles, benches, furniture, lifts, fences, etc. Aircraft parts, camera lenses, couplers, Marine fittings and hardware, electronic fittings and joints, decorative or various hardware, hinge heads, magnetic heads, brake pistons, hydraulic pistons, electrical fittings, valves and valve parts. | ||
| AL6063-T5 | ≥250 | ≥110 | ≥7 | 60-75 HB | Manufacturing aircraft materials, daily life products, construction Windows and so on. | ||
| AL5083-H112 | ≥275 | 288 ≥125 | ≥12 | 65 HB | Construction industry, Transportation, aerospace, etc . Manufacture plate welding parts for automobiles and aircraft, sheet metal parts for ships and naval vessels, fuel tanks and oil pipes . Aircraft fuel tank, oil pipe, instrument, street lamp bracket, etc | ||
| A2017-T6 | ≥370 | ≥215 | ≥12 | 150HB | Rivets, general machinery parts, aircraft, ships, traffic, building structures, transport structures, propeller components and accessories, etc | ||
| MIC-6 | ≥172 | ≥138 | ≥5 | 65 HB | Precision machinery, semiconductor equipment, optical instruments, mold manufacturing and other fields. Specific applications include, but are not limited to: Precision machinery: Used to manufacture precision machinery parts such as plates, bases and fixtures. Semiconductor equipment: used to manufacture semiconductor coolers, packaging bases, etc. Optical instruments: used to manufacture optical platforms, mirror bases, etc. Mold manufacturing: Used to manufacture mold substrate, die casting mold, etc. |