Additive Manufacturing (AM) is emerging as a mainstream manufacturing technology, and demand for large part manufacturing is getting stronger. Direct Metal Deposition (DMD) is a DED technology based on laser and powder metal application using a closed-loop-feedback control system.

This webinar focuses on additive manufacturing of NASA’s RS-25 engine nozzle liner using DMD technology. This liner (10ft in height and 8ft in diameter) is beyond the print capability of existing 3D printing processes. To print this part, significant advancements were made to the DMD technology by deploying two process heads in the machine and expanding the machine work envelop to allow manufacturing of such large parts in a safe and efficient environment.

A successful demonstration of the AM of the RS25 engine nozzle liner marks a new era in 3D printing and elevates the current 3D printing technology to a new level for affordable manufacturing of large metal parts.

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Bhaskar Dutta
President
DM3D Technology

Bhaskar has over 30 years of experience in the field of metallurgy and metal processing, including 17 years in the AM industry. He has multiple technical publications and presentations in the field of AM, as well as two co-authored books and several book chapters on AM. He also has five patents and five pending patents on metal AM. He is a member of ASM International and AMPM Program Committee.

Paul Gradl
Senior Propulsion Engineer at the NASA Marshall Space Flight Center (MSFC)
NASA

Paul Gradl is a Senior Propulsion Engineer at the NASA Marshall Space Flight Center (MSFC) in Huntsville, Alabama. Mr. Gradl serves as a Principal Investigator and leads several projects for additive manufacturing of liquid rocket engine combustion devices and supports a variety of development and flight programs over the last 17 years. He authored and co-authored over 70 journal articles and conference papers; publishing a book on Metal Additive Manufacturing for Propulsion Applications in 2022; holds four patents; and regularly teaches courses in additive manufacturing. Gradl is the recipient of numerous NASA and industry awards and medals; an Associate Fellow of American Institute of Aeronautics and Astronautics (AIAA), and serves on several additive manufacturing industry and government committees and as an advisor to industry. Gradl was named one of “The Most Influential Personalities of Additive Manufacturing in 2020” by 3Dnative.