Yes, at full current this machine has 20% intermittence factor, at 75A or less this machine can weld continiously. 75A is fine for what I do. For TIG I think you do not need long continious weld times. Might be different if you CNC it though.
I am not a professional welder and I work mostly in stainless or mild steel, so I have to take it easy and let the work piece cool down. Stainless moves around a lot with heat. Weld a centimetre in one place, move to another part of the joint and weld some there etc. The CNC thing I tried was to automate pipe welding by putting the pipes on a rotating axis and then rigidly place the torch over the joint to be. The result was not very exciting so I put this project aside. (Like most of my projects) > Hi > someone say that all welders - can work - continuously only 1-2-3 minute > and than need about 10 minute to cool down. > is this right? > also when deposit part with welding - should it have cool down time ? > because it will get super hot and it may result in warping -deformation? > did you find those problem? > > > > > On Tue, Jul 29, 2014 at 12:16 PM, Lars Andersson <[email protected]> > wrote: > >> In this case I did blindly control the weld current via the PWM output. >> The TIG machine is a current regulating controller, it keeps the current >> to what is commanded. >> The unit I controlled was an Kemppi Mastertig 1500 >> >> I did initially measure the current with a clamp on toroidal DC probe on >> the return lead. You might think that the arc-start spark voltage is a >> problem, but it worked quite well for me. >>> Hi >>> Lars >>> ---I am doing something similar with a TIG welder where 0 - 5V >> corresponds >>> ---to 0 - 160A welding current. >>> >>> >>> what kind sensor-device do you use to read 160A current ? >>> >>> thanks >>> aram >>> >>> >> >> >> ------------------------------------------------------------------------------ >> Infragistics Professional >> Build stunning WinForms apps today! >> Reboot your WinForms applications with our WinForms controls. >> Build a bridge from your legacy apps to the future. >> >> http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Infragistics Professional > Build stunning WinForms apps today! > Reboot your WinForms applications with our WinForms controls. > Build a bridge from your legacy apps to the future. > http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Infragistics Professional Build stunning WinForms apps today! Reboot your WinForms applications with our WinForms controls. Build a bridge from your legacy apps to the future. http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
