What Is Automotive Grade Sheet Metal
As a means of transportation that carries life safety, automobiles have almost stringent performance requirements for the automotive grade sheet metal.
First, there is a balance between high strength and light weight. Aluminum alloys need to reduce the weight of the vehicle body to reduce energy consumption while ensuring the structural strength and occupant safety during vehicle collisions.
Secondly, good processing performance is indispensable. Aluminum alloys must be able to adapt to complex molding processes, such as extrusion, die-casting, stamping, etc., to meet the diverse design requirements of automotive parts.
Furthermore, excellent corrosion resistance is also key. Automobiles are exposed to wind, sun, rain and snow for a long time. Aluminum alloys must have corrosion resistance to extend their service life.
Finally, recyclability is also increasingly valued. With the deepening of environmental protection concepts, automotive-grade aluminum alloys need to meet the requirements of recycling and reduce resource waste.
Aluminum alloys in automobile manufacturing
According to different performance characteristics and application scenarios, the aluminum alloys commonly used in automobile manufacturing are mainly 2 series, 5 series, 6 series and 7 series.
2 series aluminum alloy: copper is its main alloying element, with high strength and hardness. It is often used to manufacture parts that need to bear large loads, such as aircraft structural parts, automobile steering knuckles, etc.
5 series aluminum alloy: the main alloying element is magnesium, which is characterized by medium strength, good plasticity and corrosion resistance. It is often used to manufacture automobile body covers, trunk lids, etc., which can not only ensure a certain strength, but also meet the requirements of appearance parts for surface quality.
6 series aluminum alloy: With magnesium and silicon as the main alloying elements, it has excellent comprehensive performance, good strength, plasticity and processing performance. It is widely used in automobile body frames, doors, bumpers and other parts. While ensuring the strength and rigidity of the body, it is easy to form and process.
7 series aluminum alloy: It is a super-hard aluminum alloy with zinc as the main alloying element and magnesium, copper and other elements added to strengthen it. It has high strength and hardness and is often used in occasions with extremely high strength requirements.
Uses of 7075 aluminum
As a typical representative of 7 series aluminum alloy, 7075 aluminum alloy has unique applications in the automotive field with its excellent strength and hardness. In racing cars and high-performance sports cars, 7075 aluminum alloy is often used to manufacture suspension system components, such as control arms, steering knuckles, etc. These components need to withstand huge stress and impact. The high strength characteristics of 7075 aluminum alloy can ensure the stability and reliability of the vehicle during high-speed driving and intense control.
At the same time, al 7075 t651 is also used to manufacture some key parts of the engine, such as pistons and connecting rods, to help improve the performance and durability of the engine. In addition, in high-end passenger cars, 7075 aluminum alloy is sometimes used to manufacture some parts with extremely high safety requirements, such as seat frames, to ensure the safety of passengers in the event of a collision.
Original Source:https://www.autoaluminumsheet.com/a/what-is-automotive-grade-sheet-metal.html
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