Stefan Keller

Title: The Innovative Contributions of Stefan Keller

Introduction

Stefan Keller is a notable inventor based in Bonn, Germany. He has made significant contributions to the field of materials science, particularly in the development of aluminum composite materials. With a total of 3 patents to his name, Keller's work has the potential to impact various industries.

Latest Patents

One of Keller's latest patents is focused on an aluminum composite material and forming method. This invention relates to a method for forming an aluminum composite material that features a core alloy made from an aluminum alloy of type AA5xxx or AA6xxx. The composite material includes at least one outer aluminum alloy layer on one or both sides, which has a yield strength ranging from 25 MPa to 60 MPa in the soft or solution-annealed state. This method enables the production of large-surface, heavily formed aluminum alloy sheet metal parts, particularly in outer skin quality.

Another significant patent is a device for performing a bending test. This device includes a base plate, counter bearings connected via the base plate, and bearing blocks that each comprise a support for applying a bending sample. The design allows for precise and force-resistant adjustments of the supports by abutting the counter bearings and bearing blocks against each other via inclined contact surfaces. The method for performing a bending test using this device involves applying a bending sample on the supports and exerting a force between the supports on the bending sample.

Career Highlights

Stefan Keller is currently employed at Hydro Aluminium Rolled Products GmbH, where he continues to innovate and develop new technologies in aluminum processing. His work has been instrumental in advancing the capabilities of aluminum materials in various applications.

Collaborations

Keller has collaborated with notable colleagues such as Olaf Engler and Dietmar Schröder, contributing to a dynamic and innovative work environment.

Conclusion

Stefan Keller's contributions to the field of aluminum materials and testing devices highlight his role as a significant inventor. His patents reflect a commitment to innovation and the advancement of technology in materials science.