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[YesAuto Technology] As a lightweight material originating from the aviation industry, aluminum alloy is no stranger to the modern automobile manufacturing industry. In the manufacturing process of an ordinary medium and large car, how far is the use of aluminum?

New features such as lighter weight, more corrosion resistance, and higher plasticity make aluminum alloy material highly loved by car companies. At present, you can definitely count Audi A8L, Cadillac CT6, Tesla MODEL S, etc. in the current models that particularly favor aluminum.

In view of the difference in aluminum alloy processing technology and use conditions, the more aluminum materials are used, the more they test the R&D and design capabilities of car companies. Among the many car companies, Jaguar Land Rover seems to have a soft spot for aluminum. From the beginning of the Jaguar XJ model to the use of aluminum alloy to now all models are using aluminum alloy body structure, it has become the most effective use of aluminum materials among car companies. One of the depot.

Ian Callum, Jaguar’s global design director, once said that the new Jaguar XF will be the most beautiful model in its class. In fact, I am afraid it is also the lightest model in its class.

Comparison of curb quality
Model Curb weight (kg)
Audi A6L 2016 TFSI Comfort 1750

BMW 5 Series 2014 520Li Elegant Type

1740
Jaguar XF 2016 2.0T two-wheel drive 1590

This high-strength composite material is mainly composed of 75% recycled aluminum (from stamping waste) and 25% of raw material aluminum. It belongs to 5000 series aluminum-magnesium alloy (5000 series aluminum-magnesium alloy is also used in the production of aircraft welding parts). The torsional rigidity of the new XF body will reach 22kNm/deg, while the torsional rigidity of the current XF body will be 16kNm/deg. (The rigidity of the new model is 28% higher than that of the old model.)

The craftsmanship of Jaguar XF all-aluminum body


One-piece stamping side panel, stamping a whole piece of high-strength 6000 series alloy sheet into a body side panel weighing less than 6kg. This can be regarded as one of Jaguar’s most technically challenging processes. It also combines aluminum in design and manufacturing. The limit is raised to a new height.

Self-piercing rivets and structural adhesives replace traditional welding processes with self-rivets and adhesives to connect aluminum alloys with other materials, such as steel and carbon fiber.

In addition to the overall body frame, aluminum is also used to make engine compartment covers and front fenders, while front-end supports and body beams are made of lighter magnesium alloys, and steel is used for rear floors, doors and luggage compartment covers. section.

Here we return to the beginning of the article, Jaguar Design Director Ian Callum said that the most beautiful model in its class, streamlined is a special interpretation of aesthetics, and the new XF reached 0.26Cd drag coefficient than the old XF model 0.29Cd drag coefficient reduced by 10 %. Jaguar claims that the new XF has ranked among the top three non-hybrid models with the smallest drag coefficient. It can be seen that XF is one step closer to perfection in the journey of design and technology.


● Summary

In fact, as an entry-level model, Jaguar XE has achieved 75% of the total aluminum alloy consumption, and the new generation of Jaguar XF will make the lightweight aluminum alloy frame more perfect, greatly reducing the body quality, achieving higher handling performance, improving fuel economy and Reduce carbon dioxide emissions. It has to be said that Jaguar has made extraordinary achievements in developing the maximum potential of aluminum, and it has also contributed to it.