研究目的
Investigating the influence of substrate tilt angle on the morphology of laser cladding layer.
研究成果
The study successfully established a theoretical model to predict the geometric parameters of laser cladding on tilted substrates, verified by experimental data. The model's predictions were consistent with actual results within an acceptable error range, demonstrating its potential for optimizing process parameters and reducing test costs in industrial applications.
研究不足
The theoretical model assumes simplified conditions such as uniform powder distribution and neglects certain physical interactions like powder interaction and gravity effects, which may lead to prediction errors.
1：Experimental Design and Method Selection:
A single track orthogonal experiment was conducted to study the influence of tilt angle on the morphology of laser cladding. The experimental scheme included varying tilt angles, laser power, scanning speed, and powder feeding rate.
2：Sample Selection and Data Sources:
The substrate and powder used in the experiment were 17CrNiMo6 and Ni60, respectively. The size of the substrate was 30 × 10 × 10 mm3 and the size of the powder particle was 70–126 μm.
3：List of Experimental Equipment and Materials:
RS-LCD-4000 (power)-D-R semiconductor laser cladding system, LDF-4000-100 semiconductor laser, KUKA-KE30HA six-axis industrial robot, YC52-laser cladding head, RC-PF-01B-2 double silo negative pressure airborne powder feeding system.
4：Experimental Procedures and Operational Workflow:
The substrate was prepared by grinding the oxide layer and rinsing with alcohol. Powder was dried to remove moisture. The cladding path and feeding nozzles arrangement were specified.
5：Data Analysis Methods:
Geometric characteristics of the laser cladding were analyzed, including width, height, peak shift, elevation side width, and reduction side width. A theoretical model was established for prediction.
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