With the deepening of electrification and lightweight of automobile manufacturing, intelligence is moving towards integration and manufacturing is moving towards integration, which is becoming a new technical hotspot.
Following S-in motion ®, ArcelorMitaldo parts Integration solution (ArcelorMittal MPI) has further innovated, changing the way cars are manufactured and the supply chain model, and expanding the potential of automotive performance and environmental standards with its streamlined and efficient features.
On May 24, 2024, a grand event focusing on multi-part integration technology opened at Shanghai Fosun Art Center.
As the leader of domestic automotive steel solutions, VAMA&GONVVAMA is committed to promoting the reform and innovation of automotive manufacturing, bringing cutting-edge multi-part integration technology and solutions, and conducting in-depth dialogue and extensive exchanges with more than 30 domestic automobile manufacturing enterprises.
Under the guidance of the carbon peak carbon neutralization goal, the multi-part integration solution integrates multiple parts into one module through the ingenious combination of aluminum-silicon coated hot-formed steel, hot forming technology and laser welding technology.
the number of parts and assembly steps are greatly reduced, the production process is simplified, production efficiency is significantly improved, and carbon emissions are further reduced.
To provide ideas and help for the low-carbon, efficient and sustainable development of China’s automobile industry.
Aluminum-silicon coated hot-formed steel Usibor ®and Ductibor ®are known as the flagships of ultra-high strength steel.
Usibor ®provides a strong “hard zone” for the car body with excellent strength properties, while Ducibor ®is able to quickly absorb energy during a collision and effectively reduce the impact on passengers.
In addition to the first generation Usibor ®1500, Ducibor ®1000 and the second generation Usibor ®2000 and Ducibor ®1000, ArcelorMittal continues to break through the limits in the research and development of materials with both high strength and toughness, the third generation of aluminum-silicon coated hot-formed steel will also be available soon, providing a broader design space for automotive manufacturing.
The application of laser butt welding technology makes the design of parts more flexible.
According to the collision requirements, materials with different strength and toughness can be combined, so that a part can have high strength and high toughness at the same time.
At the same time, the use of laser butt welding technology can also weld the steel plates of different thickness together, reduce the local steel plate thickness, and reduce the weight of the coincident part of the sheet, so as to achieve a good weight loss effect.
In addition, the application of laser butt welding technology can also help the whole vehicle factory to simplify the process, improve the production beat, improve production efficiency, save site investment, personnel investment and equipment investment.
Since 2014, VAMA has introduced ArcelorMittal’s early supplier intervention mechanism, and in 2017, GONVVAMA has brought advanced laser butt welding solutions for hot formed steel.
Based on the ArcelorMitaldo parts integration solution, VAMA&GONVVAMA works closely with Chinese automakers in the critical stage of body research and development to develop a series of integrated solutions adapted to the Chinese local market.
The internal and external double door knockers and integrated rear body frame displayed on the spot are vivid examples of multi-part integration technology innovation.
Among them, the display sample of the internal and external double door ring, which appeared in the domestic public view for the first time, is further integrated into a four-ring structure on the basis of the unilateral double-ring structure of the previous generation of hot-formed laser welding of the inner and outer door ring and the front and rear door ring.
The side structure of the whole passenger cabin, that is, the enclosure area from A column to C column and threshold, is integrated into a super-large integrated structure.
It not only fundamentally simplifies the supply chain process of the body side assembly, but also provides all-round protection for drivers, so that safer vehicles can become a wider choice for users.
In addition to the multi-part integration of the car body structure, the battery pack integration scheme is undoubtedly the focus of the current industry’s attention in the electrified transformation.
The first domestic hot-formed tray successfully trial-produced by VAMA in early 2023 is also on display in this exhibition.
Compared with the cold-formed steel battery pack tray, it shows unparalleled high strength, and the better geometric accuracy of hot-formed steel also makes the closed parts connect more closely, and the cost can be greatly reduced compared with aluminum.
Bring more innovation and possibility to the integrated design of electric vehicles.
With the continuous updating and iteration of the concept of new materials and parts, the automobile manufacturing industry is also moving towards green and intelligent.
We can foresee that multi-part integration technology will play a more important role in automobile manufacturing in the future.
In this wave of green and intelligence, cars in the future will be lighter, safer and more environmentally friendly, bringing more possibilities for our travel life.
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