| 摘要 |
<p>A method for heating an irregularly shaped target surface (28, 36) with an energy beam (12, 48) with a controlled power density as the beam progresses across the surface in order to control a cladding process. In one embodiment, widths (y) of respective rectangular diode laser beam images (22, 24, 26) are controlled in response to a local width of a gas turbine blade tip (20), and a power level of the diode laser is linearly controlled in response to the width of the respective image in order to maintain an essentially constant power density across the blade tip. In another embodiment, the width and power level of a continuous laser beam image (34) are controlled in response to changes in the local surface shape in order to produce a predetermined power density as the image is swept across the surface.</p> |
