A fluid dynamic computation scheme was used to solve the solidification problem for 304 stainless steel wires cladding on round tubes in laser wire cladding. In a series of tests, the formation of the clad profile of the wire cladding was photographed in the side view by a high speed charge coupled device camera at various time steps. Clad temperature was simultaneously measured by an infrared spectrometer. Clad profiles were photographed in the top view at different velocities. Thinning was induced when the wire velocity was less than the tube velocity. Conversely, thickening was induced when the wire velocity was larger than the tube velocity. A wave-like thickness resulted when the wire velocity was much larger than the tube velocity. Furthermore, the wave-like thickness of the clad profile was significantly affected by the melting area during clad solidification. Reductions in both the clad height and the clad width were strongly dependent on the substrate velocity, with the effect on the former significantly greater.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Biomedical Engineering