Eric G Hartnagle

Title: The Innovative Contributions of Eric G Hartnagle

Introduction

Eric G Hartnagle is a notable inventor based in Troy, MI (US), recognized for his contributions to the field of welding technology. With a total of 2 patents, he has made significant advancements that enhance the quality and efficiency of welding processes, particularly in battery cell manufacturing.

Latest Patents

Hartnagle's latest patents include a method and apparatus for welding foils. This invention describes a method and associated device for joining a battery cell tab to a plurality of foils associated with a plurality of electrodes of a battery cell. The process involves arranging the foils in a stack and utilizing a first joining device to define a joining region. A portion of the battery cell tab is then arranged on the foils and joined using a second joining device, which generates a weld joint within the defined joining region. This innovation aims to improve weld quality and strength by reducing the occurrence of porosities and cracks in the foil/tab weld joints.

Another significant patent by Hartnagle is focused on the elimination of tool adhesion in an ultrasonic welding process. This welding assembly includes a sonotrode, a cleaning station, and a controller. The controller periodically commands the clamping of the sonotrode onto a cleaning block and transmits ultrasonic energy into the cleaning block for a calibrated duration. This process effectively removes residual metal from the welding pads of the sonotrode, ensuring optimal performance during welding operations.

Career Highlights

Eric G Hartnagle is currently employed at GM Global Technology Operations LLC, where he continues to innovate and develop advanced welding technologies. His work has been instrumental in enhancing the manufacturing processes within the automotive industry, particularly in the production of battery cells.

Collaborations

Throughout his career, Hartnagle has collaborated with talented professionals, including Teresa J Rinker and Chih-chang Chen. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Eric G Hartnagle's contributions to welding technology demonstrate his commitment to innovation and excellence. His patents not only improve manufacturing processes but also pave the way for advancements in battery technology. His work continues to have a lasting impact on the industry.