Additive Manufacturing: Making Things and Breaking Things

Speaker: Dr. Joy Gockel
Department of Mechanical Engineering Colorado School of Mines

Abstract

Additive manufacturing (AM) is unique because the material is created at the same time as the component and the performance is connected back to the manufacturing parameters. This creates challenges in ensuring part quality and predicting mechanical properties, but also provides opportunities for novel materials processing, such as the fabrication of multi-material structures. In metal AM, the formation of defects, the effect on fatigue performance and the detection of these defects while the part is being built are critical challenges impacting the quality of AM parts and repairs. Multi-material structures can be achieved through novel machine technology designed to place location specific material composition in laser powder bed fusion AM. Intentional compositional changes along with unintentional variations from the AM processing results in spatial differences impacting the material structure and the resulting properties. Through a fundamental understanding of the composition-processing-structure-properties-performance relationships, AM processes can be confidently applied for critical applications.

Speaker Biography

Joy Gockel is an associate professor in Mechanical Engineering at Colorado School of Mines. She joined Mines in 2021 from Wright State University where she was an assistant professor in the Mechanical and Materials Engineering Department. Prior to her faculty positions, she was a lead engineer at GE Aviation’s Additive Technology Center. Dr. Gockel earned her PhD in Mechanical Engineering from Carnegie Mellon University in 2014. Her research spans several aspects of additive manufacturing by connecting the composition-processing-structure-properties-performance relationships using modeling, in-situ monitoring, materials characterization and mechanical testing. For her professional contributions, she has been awarded the 2020 ASTM International Additive Manufacturing Young Professional Award, the 2021 TMS Young Leaders Professional Development Award, and the 2021 International Outstanding Young Researcher in Freeform and Additive Manufacturing (FAME Jr.) Award.