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  2. Electrical discharge machining - Wikipedia

    en.wikipedia.org/wiki/Electrical_discharge_machining

    A wire-cut EDM machine using the CNC drawing plotter and optical line follower techniques was produced in 1974. Dulebohn later used the same plotter CNC program to directly control the EDM machine, and the first CNC EDM machine was produced in 1976. [10] Commercial wire EDM capability and use has advanced substantially during recent decades. [11]

  3. Digigraphics - Wikipedia

    en.wikipedia.org/wiki/Digigraphics

    Digigraphics was one of the first graphical computer aided design systems to go on sale. Originally developed at Itek on the PDP-1 as EDM (Electronic Drafting Machine), the efforts were purchased by Control Data Corporation and ported to their machines, along with a new graphics terminal to support it. Systems cost almost $500,000 and supported ...

  4. Rule-based DFM analysis for electric discharge machining

    en.wikipedia.org/wiki/Rule-based_DFM_analysis...

    Electrical discharge machining (or EDM) is one of the most accurate manufacturing processes available for creating complex or simple shapes and geometries within parts and assemblies. A machining method typically used for hard metals, EDM makes it possible to work with metals for which traditional machining techniques are ineffective.

  5. Plasma cutting - Wikipedia

    en.wikipedia.org/wiki/Plasma_cutting

    Plasma cutting is often used in fabrication shops, automotive repair and restoration, industrial construction, and salvage and scrapping operations. Due to the high speed and precision cuts combined with low cost, plasma cutting sees widespread use from large-scale industrial computer numerical control (CNC) applications down to small hobbyist ...

  6. Musk's role 'an unbelievable opportunity' for US government ...

    www.aol.com/news/musks-role-unbelievable...

    Republican Rep. Mike Turner on Sunday refuted claims that the massive overhaul of the federal government by Elon Musk's Department of Government Efficiency (DOGE) constitutes a federal crisis.

  7. Ampex - Wikipedia

    en.wikipedia.org/wiki/Ampex

    Ampex 601 playing a recording of "Les Paul's New Sound, Vol. II". Made in Redwood City, California, c. 1956. Internals of Ampex Fine Line F-44, a 3-head Ampex home-use audio tape recorder, c. 1965 AMPEX model 300 half-inch three-track recorder AMPEX 440 (2tr, 4tr) & 16-track MM 1000

  8. Muzak - Wikipedia

    en.wikipedia.org/wiki/Muzak

    Inventor George Owen Squier, credited with inventing telephone carrier multiplexing in 1910, developed the original technical basis for Muzak. [7] [8] [9] He was granted several US patents in the 1920s [9] related to transmission of information signals, among them U.S. patent 1,641,608 a system for the transmission and distribution of signals over electrical lines.

  9. Itek - Wikipedia

    en.wikipedia.org/wiki/Itek

    Leghorn contacted his long-time friend Theodore "Teddy" Walkowicz about forming a new company to build such a machine for the Air Force. Walkowicz was an associate of venture capitalist Laurance Rockefeller , and eventually secured a seed loan for $600,000 in exchange for a directorship.

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