Electrical machining method and apparatus for forming a 3D surfa

Details Electrical machining method and apparatus for forming a 3D surfa Electrical machining method and apparatus for forming a 3D surfa

1980-09-10

1983-05-31

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, B23P 112

Patent

active

043862489

ABSTRACT:
A method of and apparatus for electroerosively forming a 3D contour in a workpiece with a continuous elongate electrode axially transported continuously from a supply unit to a takeup unit to continuously renew a machining surface of the electrode juxtaposed in an electroerosion machining relationship with the workpiece is disclosed in which the continuous elongate electrode traveling between the supply and takeup unit is supported with guide unit carried by a tool head and having an arcuate guide surface juxtaposed with the workpiece to guide the traveling elongate electrode over at least a portion of the arcuate guide surface thereby constituting the machining surface at least in part with at least a portion of the elongate electrode traveling and guided over the guide surface. The tool head is translationally displaced relative to the workpiece so that the aforementioned portion of the elongate electrode moves along a predetermined continuous path in the workpiece while the guide unit carried on the tool head is rotated relative to the workpiece about a rotary axis intersecting the machining surface in a plane defined by the elongate electrode traveling and guided over the guide surface, thereby forming the contour in the workpiece.

REFERENCES:
patent: 2974216 (1961-03-01), Inoue
patent: 3366771 (1968-01-01), Jackson et al.
patent: 4242556 (1980-12-01), Ullmann et al.
patent: 4307279 (1981-12-01), Inoue et al.

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