Advancing Metal Additive Manufacturing to Enable Exploration

NASA Marshall Space Flight Center
Propulsion Department / Component Technology Development
Principal Engineer

Dr. Paul Gradl 日英同時通訳（同）

Dr. Paul Gradl, principal engineer at NASA MSFC, leads metal additive manufacturing for rocket engines. With 150 papers, five patents, major awards, and a textbook, he is a recognized leader in propulsion and AM.

NASA has advanced metal additive manufacturing (AM) for spaceflight for more than 20 years, maturing the technology from early process exploration to flight-qualified hardware. Efforts include new alloy development, characterization of process–structure–property relationships, standards creation, and fabrication and testing of complex demonstrator and engine components. Iterative test–fail–fix cycles have enabled AM integration into liquid rocket engines while revealing the process-sensitive nature of metal AM. These lessons have shaped robust design and certification approaches and demonstrate that AM must be applied methodically and intentionally. This talk summarizes key insights from NASA’s AM lifecycle and how these advances are enabling current and future propulsion systems.

ヤマハ発動機
生産技術本部 材料技術部
博士(工学)

栗田 洋敬氏

モノづくりのデジタル化について材料，構造，工法の観点からマテリアルズインフォマティクス，ラティス構造，ジェネレーティブデザイン，三次元積層造形等について現在の技術的状況を概観する．その上で当社の取り組みとして実用事例（ダイカスト金型），部品開発（エンジン部品ケーススタディ），研究開発（3次元積層造形品の造形品質）のトピックについて紹介し，最後に今後の課題等について述べる．