Neumann TELDEC-DMM Kupferfolien-Schneidemaschine



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Deutsch: Kupferfolien-Schneidemaschine der Firma Neumann, Berlin. Speziell entwickelt für das Direct-Metal-Mastering-Verfahren (DMM) der Firma TELDEC zum Herstellen der Press-Matrizen von Vinyl-Schallplatten. Das Glas unten rechts neben dem Gerät enthält den Span, der beim Schneiden des gezeigten Kupfer-Masters anfiel (ein einzelner, ungebrochener Span! DIE besondere technische Herausforderung beim DMM-Schneideverfahren). Eigenes Foto eines Gerätes im TELDEC-Museum, Nortorf.

English: An early disc cutting lathe, probably and AM131 made by Neumann, Berlin in the early 1930s, shown here with a DMM master disc. TheDirect Metal Mastering process (DMM) was developed by TELDEC for manufacturing the master disk of vinyl records. The glass at the bottom right of this photo contains the chip or "swarf", which was cut off during the cutting process of copper masters (normally unbroken, finally with the complete length of the cut groove- the particular challenge of this special dmm-process). Own photograph of a device in the TelDec Museum, Nortorf.
(Note: TelDec is a joint company of Telefunken and Decca founded in 1950)
Date 17 February 2008(2008-02-17)
Source Own work
Author 32bitmaschine


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