the guy Posted December 10, 2009 Share Posted December 10, 2009 if one where to (hypothetically) take a cathode ray tube from a television set, remove the front, put it in the necessary vacuum etc etc and put a piece of metal in front of it, would this kind of cathode ray have the power to melt the metal, in the same way the electron beam welders do? Link to comment Share on other sites More sharing options...
John Cuthber Posted December 12, 2009 Share Posted December 12, 2009 Only if it was a very small bit of metal, or one that was very easy to melt. Having said that, because the metal is in a vacuum there's no way for it to lose heat by convection or conduction (throughh the vacuum) so it may take less heat to melt than you would normally expect. Link to comment Share on other sites More sharing options...
swansont Posted December 12, 2009 Share Posted December 12, 2009 The EBW power supply pulls a low current (usually less than 1 A), but provides a voltage as high as 60 kV in low-voltage machines, or 200 kV in high-voltage machines. http://en.wikipedia.org/wiki/Electron_beam_welding#Equipment TVs are generally lower energy, and probably don't focus the spot to as small of an area. Link to comment Share on other sites More sharing options...
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