COATING METHOD FOR COMPONENT WITH PARTIALLY CLOSED HOLES AND METHOD FOR OPENING THE COATED HOLE

摘要

PROBLEM TO BE SOLVED: To obtain a correct array position of a cooling air hole array in re-machining covered cooling air holes when a part with cooling air holes is covered.

SOLUTION: According to this method, at least two cooling air holes are coated with masking material in a coating process, and the array position of the cooling air hole array (10) is obtained based on two cooling air holes 13', 13" not coated.

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