Sandra Le Guillard

Title: Sandra Le Guillard and Steel Sheet Innovation.

Introduction

Sandra Le Guillard is an inventor associated with ArcelorMittal and based in Mars-la-Tour, France. Her patent work concerns steel sheet designed for processing before hot forming, with a focus on material properties that support multistep hot stamping.

Latest Patents

The provided information lists 1 patent associated with Le Guillard: “Method for producing a steel sheet having excellent processability before hot forming.” The invention describes a steel sheet suitable for a multistep hot-stamping process and an associated manufacturing process.

The steel composition includes specified ranges or limits for carbon, manganese, silicon, chromium, molybdenum, niobium, aluminum, titanium, boron, phosphorus, sulfur, nitrogen, nickel, calcium, tungsten, vanadium, and copper. It also defines a composition factor, Q, that must be below 20. The sheet’s microstructure includes 60% to 100% recrystallized ferrite by surface fraction, less than 40% combined martensite, bainite, and carbides, and less than 5% non-recrystallized ferrite.

Career Highlights

The available details connect Le Guillard’s inventive work with ArcelorMittal and steel development for hot-forming applications. The patent’s specified composition and microstructure address the processability of steel sheet before hot forming.

Collaborations

Fabrice Germain and Deborah Herry are identified as Le Guillard’s coworkers. The information provided does not specify their roles in the patent or the associated research.

Conclusion

Sandra Le Guillard’s listed patent focuses on steel composition and microstructure for producing sheet with excellent processability before hot forming, reflecting an application-oriented contribution to steel innovation.