Laser cladding technology has been increasingly used in processes of mechanical part and component repairing and remanufacturing. However, current research on the morphology of laser cladding is carried out on the premise of substrate level, it cannot be directly applied to the inclined substrate for laser cladding. This paper studied the influence law of tilt angle on the morphology of laser cladding through geometric parameters and profile of the laser cladding. Results show that substrate tilt angle mainly affects five geometric parameters such as the width and height of the layer cladding, peak shift, elevation side width and reduction side width. And a theoretical model for these geometrical parameters has been established for prediction in this paper. Meanwhile experimental profiles of laser cladding results verified the consistency between the laboratory data and model predictions, which is developed for tilted substrates. It will greatly expand the application range of laser cladding technology on complex parts such as gears.

激光熔覆技术已越来越多地用于机械零件和组件的修复和再制造过程中。但是，目前对激光熔覆层的形貌研究是在基板水平的前提下进行的，不能直接应用于倾斜的激光熔覆基片上。通过几何参数和激光熔覆层的轮廓，研究了倾斜角对激光熔覆层形态的影响规律。结果表明，衬底倾斜角主要影响五个几何参数，例如包层的宽度和高度，峰位移，高程侧宽度和缩小侧宽度。并针对这些几何参数建立了理论模型进行预测。同时，激光熔覆结果的实验​​曲线验证了实验室数据和模型预测之间的一致性，该预测是针对倾斜基板开发的。它将大大扩展激光熔覆技术在齿轮等复杂零件上的应用范围。