116 / 2025-05-15 16:38:41

The Influence of Process Parameters on the Geometric Characteristics of Laser Wire Additive Manufacturing Cladding Tracks.

Laser wire additive manufacturing, Nickel-based high-temperature alloys, Process parameters, Cladding quality

The cladding quality in Laser Wire Additive Manufacturing (LWAM) is closely correlated with multiple physical signals, making it challenging to ensure consistent part quality. Therefore, it is crucial to investigate the influence of process parameters on the geometric characteristics of the deposited tracks. In this study, GH4169 nickel-based superalloy was selected as the experimental material. Three key geometric parameters—Width-to-Height Ratio (WHR), Dilution Ratio (DR), and Wetting Angle (WA)—were identified as primary indicators for evaluating cladding quality. By measuring the cross-sectional geometry of stably formed single-track deposits, the effects of laser power (P), scanning speed (V), and wire feed rate (F) on the geometrical features of the clad tracks were systematically analyzed. The results show that both laser power and scanning speed exhibit a positive correlation with WHR and DR, and a negative correlation with WA. Conversely, wire feed rate is negatively correlated with WHR and DR, while positively correlated with WA. This study provides foundational insights and valuable data to support future data-driven approaches for cladding quality prediction in LWAM processes.