Jean-Mary Wattier

Title: Innovations of Jean-Mary Wattier

Introduction

Jean-Mary Wattier is a notable inventor based in Montreuil-Juigné, France. He has made significant contributions to the field of materials engineering, particularly in the extrusion of metals and alloys. With a total of 2 patents, his work has advanced the methods used in manufacturing composite hollow bodies.

Latest Patents

One of his latest patents is titled "Method and apparatus for lubricated forward extrusion with radial." This invention relates to a method and an apparatus for lubricated forward extrusion of metals and alloys, featuring a unique design that allows for the radial forward removal of an outer shell or sheath. The method involves forming a gap in the shape of a plane or slightly truncated cone-shaped circular outer ring, which is open to the atmosphere. This innovative approach facilitates the extraction of the outer shell by utilizing several knives that divide the shell into 'petals' during the extrusion process.

Another significant patent by Wattier is the "Method for the production of a composite hollow body." This method focuses on creating a composite hollow body made of aluminum alloys, consisting of two layers with differing structures. One layer is designed to operate in contact with a mobile surface and is produced by extruding a mixture of particles from a hypereutectic silicon alloy. The other layer is selected from alloys with specific properties and has a cast and wrought structure. The method includes coextrusion on a mandrel in an inverse extrusion press, resulting in composite hollow bodies that are particularly useful for linings in internal combustion engines or jacks.

Career Highlights

Jean-Mary Wattier is associated with Cegedur Société De Transformation De L'aluminium Pechiney, where he has applied his expertise in materials engineering. His work has been instrumental in advancing the technology used in aluminum processing and manufacturing.

Collaborations

Throughout his career, Wattier has collaborated with notable colleagues, including Albert Mastrot and Jean-Claude Kucza. These collaborations have contributed to the development of innovative solutions in the field of materials engineering.

Conclusion

Jean-Mary Wattier's contributions to the field of materials engineering through his patents and collaborations highlight his role as an influential inventor. His innovative methods for extrusion and composite body production continue to impact the industry positively.