FIELD: process engineering.
SUBSTANCE: invention relates to repair of turbine blades. Proposed process comprises preparation of blade surface. Coating is applied with the help of laser radiation with simultaneous feed of additive powder to melt belt. At hard-facing, radiation power P is varied from 300 to 2500 W, and/or as radiation source feed rate V from 0.1-0.01 m/s, and/or amount of powder fed from 3 to 15 g/min.
EFFECT: accelerated process, higher hard-facing quality.
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Authors
Dates
2015-04-10—Published
2013-05-16—Filed