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ANALISIS ALIRAN SERBUK PADA PROSES DIRECT LASER METAL DEPOSITION (DLMD) TERHADAP SUDUT LUARAN MENGGUNAKAN METODE COMPUTATIONAL FLUID DYNAMICS (CFD).

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Direct Laser Metal Deposition (DLMD) is an additive manufacturing process that forms metallic components through layer-by-layer deposition of powder melted by a high-power laser. Powder flow behavior plays a critical role in determining deposition quality, and the nozzle outlet angle directly affects powder concentration, spot size, and capture efficiency. This study analyzes powder flow characteristics at outlet angles of 15°, 17°, and 19° using Computational Fluid Dynamics (CFD). A Co–Cr–Mo alloy powder is used, and key parameters evaluated include velocity magnitude, working distance, and spot size. Simulation results indicate that smaller outlet angles produce wider powder dispersion and lower focusing efficiency. The 17° configuration improves flow convergence but remains less optimal. The 19° outlet angle provides the most concentrated powder stream, higher local velocity magnitude, and the smallest spot size, resulting in improved powder utilization. The analysis demonstrates that nozzle geometry significantly influences powder behavior in DLMD. The 19° configuration is identified as the most effective for achieving stable, focused deposition and minimizing powder loss.

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Detail Information

Series Title

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Call Number

T1884302025

Publisher

Indralaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xxxiii, 149 hlm.; ilus.; tab.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

621.988 07

Content Type

Text

Media Type

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Carrier Type

-

Edition

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Subject(s)

Prodi Teknik Mesin
Direct Laser Metal Deposition (DLMD)

Specific Detail Info

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Statement of Responsibility

MI

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