Electro discharge machining

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Several years' development of procedure for the production of micro drillings by means of laser technology and spark erosion (EDM) assures the GFH a big know-how.

On the one hand we work hard materials and hardly to be worked on materials like hardened steel, hard metal, ceramics and diamond. Just as well standard materials can be bored very exactly like high-grade steel, copper alloys and plastics.
There is a great amount of hole forms: from circularly towards elliptically and polygon up to free forms. The depth of the bore can be cylindrical, or dilate conical or narrow.

Possible drilling specification
Drilling diameter: 0,005…2 mm
Aspective ratio l/d: < 15
Positiv tapering: Depending on the diameter
Negative tapering: 0…40µm/mm
Circularity accuracy: +/-5%
Diameter allowance: +/-3µm
Max. component size (1) l*w*h ca. 150*150*200 mm
(1) depending on the required device

 

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D - 94469 Deggendorf - Großwalding 5 - tel. +49 991 290 92-0 - Fax: + 49 991 290 92-290 - info@gfh-gmbh.de