What are the benefits of using aluminum alloys as components in the automotive manufacturing industry? Advantages of aluminum alloy
Aluminum alloy materials are currently widely used in the production of automotive components, as vehicles are becoming increasingly lightweight. Aluminum materials are lightweight, high-strength, and corrosion-resistant, so they are being used more and more. Below, we will briefly introduce its application characteristics.
The benefits of using aluminum alloys as components in the automotive manufacturing industry
1. During the extrusion process, the metal obtains a stronger and more uniform three-dimensional compressive stress state in the extrusion deformation zone than in rolling and forging. Therefore, extrusion can fully utilize the plasticity of the processed metal, and can be used for the processing of difficult to deform metals after rolling and forging, as well as for manufacturing various types of hollow or solid complex cross-section components.
2. Due to the variable geometric cross-section of aluminum alloy profiles, the stiffness of their components is relatively high, which can increase the stiffness of the vehicle body and improve the dynamic control characteristics of the vehicle.
3. Due to the ability to control the cross-section of aluminum alloy profiles, improve the functional integration of components, reduce the number of components, and achieve welding positioning through cross-section matching.
4. For products with extrusion benefits, the longitudinal strength performance (Rm, Rp0.2) after quenching and aging is much higher than that of similar products processed by other methods.
5. The surface of aluminum extruded products has good color and corrosion resistance, and no other anti-corrosion surface treatment is required.
6. Extrusion processing has high elasticity, low mold cost, and low design change cost.
Five common methods for processing aluminum alloy parts Processing characteristics of aluminum alloy parts
Aluminum alloy has the characteristics of low density, high strength, and corrosion resistance. Its lightweight and strength characteristics make it widely used in the processing and manufacturing of various parts. What are the five common methods for processing aluminum alloy accessories? Five methods for processing aluminum alloy accessories:
1. Stamping processing of aluminum alloy parts
Stamping is a method of forming and processing workpieces by applying external forces to plates, strips, pipes, and profiles through a press and mold based on the shape and size of the desired workpiece, resulting in plastic deformation or separation.
2. Mechanical processing of aluminum alloy parts
Mainly used in general machine tools such as vehicles, milling, planing, drilling, and grinding to process mold parts and assemble them into various molds. Mechanical processing of aluminum alloy parts can also be called CNC precision machining, automatic lathe machining, CNC lathe machining, etc.
3. Precision casting of aluminum alloy parts
The parts obtained using this method generally do not require further machining. Precision casting produces higher shapes and casting accuracy than traditional machining methods.
4. Powder metallurgy of aluminum alloy parts
Powder metallurgy is the technology of manufacturing materials or products using metal powder as raw material, through mixing, forming, and sintering.
5. Injection molding of aluminum alloy parts
Mix solid powder and organic binder evenly, after granulation, heat and plasticize it, inject it into the mold cavity using an injection molding machine for solidification and molding. Remove the binder from the formed billet using chemical or thermal decomposition methods, and obtain the final product through sintering and densification.
Three characteristics of aluminum alloy parts processing:
The aluminum profile processing process includes three complete processes: melting, extrusion, and coloring (coloring key includes oxidation, electrophoresis process, fluorocarbon spray painting, electrostatic powder spraying, wood grain transfer printing, etc.). Processing characteristics of aluminum alloy parts:
1. Low hardness during aluminum alloy processing
Compared to titanium alloys and quenched steel, aluminum alloys have lower hardness, and of course, heat treated or die cast aluminum alloys also have higher hardness. The HRC hardness of general aluminum plates is generally below HRC40 degrees. Therefore, in the case of processing aluminum alloy, the load of the tool is small. In addition, aluminum alloy has excellent thermal conductivity, so the cutting temperature of aluminum alloy milling is low, which can improve milling speed.
2. Low plasticity in aluminum alloy processing
Aluminum alloy has low plasticity and low melting point. When processing aluminum alloys, there are deep edge issues, poor chip removal performance, and high surface roughness. In fact, the main reason for processing aluminum alloy is that the effect of cutting and roughness is not good. If the two issues of fixed blade and machined surface quality are solved, the problem of aluminum alloy machining can be solved.
