Method and apparatus for making diffused cooling holes in an air

Details Method and apparatus for making diffused cooling holes in an air Method and apparatus for making diffused cooling holes in an air

1988-04-21

1989-02-28

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

21912167, 21912172, 21912182, 219 69G, B23H 910, B23H 500, B23K 2602

Patent

active

048087858

ABSTRACT:
A two step process for laser drilling a hole in an airfoil and subsequently performing an EDM step to form the diffuser shaped part of the hole. Alternatively, the process may be performed by laser drilling after EDM formation of the diffuser shape. The laser drilling apparatus and the EDM apparatus each have their own computer that uses a coordinate position data base that is in common for both computers.

REFERENCES:
patent: 3538289 (1970-11-01), Burnet et al.
patent: 3696504 (1972-10-01), Cupler, II
patent: 3816272 (1974-06-01), Joslin
patent: 3981786 (1976-09-01), Andrews
patent: 4197443 (1980-04-01), Sidenstick
patent: 4628170 (1986-12-01), Furukawa
patent: 4650949 (1987-03-01), Field
patent: 4653983 (1987-03-01), Vehr
patent: 4664597 (1987-05-01), Auxier et al.

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