Apparatus for electro-chemical milling of turbine blade edges

Details Apparatus for electro-chemical milling of turbine blade edges Apparatus for electro-chemical milling of turbine blade edges

1975-03-19

1976-07-20

Tufariello, T. M.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

20412935, 2041296, C25F 302, C25F 314, C25F 700

Patent

active

039705382

ABSTRACT:
Apparatus is described which enables close tolerance electro-chemical milling of the leading and trailing edges of blades used in gas turbine engines. Using turbine blades formed with the edges slightly oversize in the as-cast condition, electro-chemical milling is used to properly shape the leading and trailing edges. The apparatus comprises an insulated body having a slot shaped to accept the turbine blade. The two outer edges of the slot are fitted with lengthwise slotted metallic tubing which receives the edges of a blade and which forms a channel for a supply of electrolyte for milling the blade edges. Means are provided for accurately positioning the blade within the body.

REFERENCES:
patent: 3268434 (1966-08-01), Weingartner
patent: 3309294 (1967-03-01), Goodwin
patent: 3326785 (1967-06-01), Williams
patent: 3849273 (1974-11-01), Johnson

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