多規模ハイブリッド添加物製造におけるインターフェース戦略の役割について
Alan Burl1, Zaky Hussein1, Venkata Surya Karthik Adapa1
1GW Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA USA.
まとめ
この研究では,指向されたエネルギー堆積 (DED) プロセスのインタフェース戦略を調査し,ワイヤベースのDED-arcの後,非同期的に適用すると,粉末ベースのDED-LPが平らさを改善し,多孔性を減少させることが判明しました. 耐震性は影響を受けなかった.
科学分野:
- 材料科学
- 製造エンジニアリング
- アディティブ製造
背景:
- マクロスケール向けエネルギー貯蔵 (DED) の産業採用は,異なるDEDプロセス間のインタフェース戦略を理解する必要があります.
- アシンクロンな堆積は,最終的な部品の特性に影響を与える異なるDED方法の連続的な適用を伴う.
研究 の 目的:
- ワイヤベースのDED-arcと粉末ベースのDED-LPプロセスの間のインターフェース戦略を調査する.
- 平さ,多孔性,硬さ,衝撃エネルギーなどの部品の特性に対する表面処理の影響を評価する.
主な方法:
- DED-arcを使用したワイヤーのコンポーネントの非同期沈殿,次に粉末ベースのDED-LPを使用します.
- 表面の平らさ,多孔性,硬さ,そして異なるインターフェース戦略のためのチャルピー衝撃エネルギーの評価.
- DED-LPの自己調節効果と除去されていない表面汚染物質の影響の分析.
主要な成果:
- DED-LPは自己調節効果を示し,DED-arcの表面と比較して表面の変動を最大55%減少させた.
- DED- LPの多孔性は,除去されていない表面汚染物質が障壁として作用するので,99. 5%から92. 4%に大幅に減少しました.
- 密度が低下したにもかかわらず,低相関係数 (-0.46) によって示される衝撃耐久性は悪影響を受けませんでした.
結論:
- DED-LPに続く非同期的なDED-arcは,表面の平らさを高め,多孔性を減らすことができます.
- 堆積段階の間の汚染物質の存在は,意外に材料の密度を向上させ,衝撃の強さを維持することができます.
- インターフェース戦略の選択には,製造コストと特定のアプリケーション要件を考慮する必要があります.
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