| 摘要 |
The present invention relates to a method of providing an erosion resistant coating on the surface of a turbine blade having a desired profile. The method includes the step of providing a recess having a suitable shape and depth in the surface of the turbine blade. A laser deposition process is then used to deposit an erosion resistant coating material in the recess such that the outer surface of the resulting erosion resistant coating extends beyond the desired profile of the turbine blade. In a final stage in the method, the erosion resistant coating is machined to remove all parts of the erosion resistant coating that extend outside the desired profile of the turbine blade. The finished turbine blade is therefore provided with a coating with the desired profile having a sufficient thickness to protect it against water droplet erosion. |
