Features of restoration the geometry of gas-turbine engine’s blade stylus by method of laser powder cladding

In the article the process of restoration the height of a blade stylus of turbostarter at turbo-propeller aviation NK-12MP engine is described. On the basis of carried-out comparative analysis of blade’s geometry restoration methods it is offered to use a pulse laser powder cladding for this purpose. According to experimental data, the most effective in this case is cladding in a powder bathtub by combination of the built-up blade stylus’s end-face at one level with the surface of a powder bathtub, that excludes waste of powder at cladding and provides the high efficiency of the process. The influence of pulse laser radiation parameters on the process of powder cladding at restoration of turbostarter’s blade stylus’s height has been researched.