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Constellium and Renault Group conclude R&D project advancing aluminum solutions for lighter vehicles and closed-loop recycling

Constellium announced the successful conclusion of the “ISA3” R&D project, initiated in 2021 to enhance lightweighting in automotive design. Conducted in partnership with Renault Group, ESI Group, the Institut de Soudure (Welding Institute), and the University of Lorraine, and supported by a grant from the France Relance investment program, the project has set a benchmark for designing next-generation aluminum automotive components that are lightweight, cost-efficient, and recyclable.

A major milestone of the project is a lightweight aluminum door, co-developed with Renault, using Constellium’s proprietary uni-alloy 6xxx rolled and extrusion-based solutions. This innovative design achieves a 14% weight reduction compared to a current aluminum door used in compact battery electric vehicles.

IMG_1228

The lightweight aluminum door, co-developed with Renault, using Constellium's proprietary 6xxx uni-alloy rolling and extrusion-based solutions.


By employing a single alloy series, the design streamlines closed-loop recycling throughout the door’s lifecycle, significantly reducing its carbon footprint. The new door solution delivers a 33% reduction in Global Warming Potential (GWP), underscoring the project’s focus on sustainable innovation. Additionally, the project identified more efficient, flexible production processes, while enhancing performance and optimizing costs.

Constellium is a full-service supplier of rolled and extrusion-based aluminum solutions for the global automotive market. Renault Group is supplied by Constellium’s ASI-certified facilities in Neuf-Brisach, France and in Nuits-Saint-Georges, France.

Comments

SJC

Tesla is aluminum it offsets the extra weight of the batteries they also have very good crash tests.

Nirmalkumar

There is a crying need to reduce weight of EVs by using advance composite materials esp in US. You cant have heavy trucks like F 150 , when we need small compact light weight crash 5 raing cars.

SJC

I'm a fan of aluminum space frames and carbon composite body panels strong light what we need.

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