Lightweight materials for bodywork mainly include high-strength steel, aluminum alloy, magnesium alloy, and composite materials. At present, advanced high-strength steel is widely used in car body structure due to its high cost performance, high technological maturity and complete industrial system. Due to its advantages of low density and high specific strength, the amount of light alloy used in the car body is increasing year by year. Taking into account the performance, cost and recycling potential of the material, aluminum alloy is undoubtedly the most advantageous light alloy material at present.
Aluminum tube fitting for Vehicle
Application of aluminum tube fitting profile on vehicle body
Low cost extrusion die for aluminum tube fitting profile
1.1 Aluminum alloy
With its advantages of high specific strength, high specific strong plastic product and excellent anti-corrosion performance, Aluminium air pipe fitting has been used in automobiles to increase year by year. Aluminum alloy is undoubtedly the most advantageous lightweight alloy material at present.
1.1.1 Application of aluminum alloy sheet on car body
At present, aluminum plates for bodywork mainly include 5-series and 6-series aluminum alloys. The 5 series aluminum alloy has excellent deep-drawing performance, because it is easy to produce Lüdes band on the surface during the forming process, and this surface defect cannot be completely concealed after coating, and it is mainly used for the inner panel structure of the car body. Although 6-series Aluminium pipe fitting is not as good as 5-series aluminum alloy, its appearance quality is good after molding and its strength can be improved by baking hardening in the painting stage. It is widely used in car body inner and outer covering parts. The highest strength of the industrial aluminum alloy family is the 7 series aluminum alloy, which is mainly used in the aerospace field. It has been applied in the body structure. For example, some structural parts of the ES6 model use AA7075 aluminum sheet, and the ES8 model uses AA7075 aluminum. Profile.
1.1.2 Application of Aluminum air pipe fitting profile on the car body
In addition to the common advantages of aluminum alloy materials, aluminum profiles also have some unique excellent characteristics, such as low cost of Aluminium pipe filting profile extrusion die, flexible cross-sectional shape design to meet different rigidity requirements, strong airtightness and sound insulation The effect is good and so on. Currently applicable to auto parts manufactured with Aluminum structural pipe fitting profiles mainly include: front and rear bumpers, door anti-collision beams, energy-absorbing boxes, instrument panel brackets, new energy battery pack shells, guide rails, luggage racks, chassis parts and body Structural parts, etc.
