Quality assessment of welded 316L steel elements manufactured using direct energy deposition
ITSC – International Thermal Spray Conference and Exhibition, Bangkok, Tayland, 18 - 20 Mart 2026, (Yayınlanmadı)
- Yayın Türü: Bildiri / Yayınlanmadı
- Basıldığı Şehir: Bangkok
- Basıldığı Ülke: Tayland
- Gazi Üniversitesi Adresli: Evet
Özet
Direct Energy Deposition (DED) processes using wire feedstocks are gaining significant interest for large-scale industrial applications. Among them, Wire Arc Additive Manufacturing (WAAM) and Laser Wire Additive Manufacturing (LWAM) represent two distinct approaches to e.g. thermal management and deposition efficiency. WAAM utilizes an electric arc (GMAW/GTAW or plasma) as the heat source. It is characterized by exceptionally high deposition rates and lower capital investment. However, the high heat input often leads to a broad Heat Affected Zone (HAZ) and significant residual stresses, necessitating extensive post-processing. In contrast, LWAM employs a high-power laser beam, offering superior control over the melt pool dynamics. The concentrated energy density results in a narrower HAZ, refined microstructure, and near-net-shape accuracy. While LWAM provides higher geometric precision and reduced thermal distortion, it involves higher system complexity and lower throughput compared to arc-based systems.