Hi,
Whenever I weld, I seem to have the same problem again and again:
The weld is perfect at the beginning (lets say 2cm or 5 seconds) but then the heat starts building up in front of the torch as I move along and continue welding. I feel I need to speed up moving my hand faster with the result that the bead becomes smaller - which basically is wrong. Ideally I would like a welding machine where it reduces the voltage and amperage a bit to take into account the preheated steel in front of the torch. Its very apparant, if I move with a constant speed that the heat affected zone becomes wider and wider towards the end of the weldment - ideally I want it to have the same HAZ width for the entire length.
I could also adjust the voltage/amperage from the beginning to take into account for the pre heated steel in front of the torch but then the first 2cm of welding are WAY too cold and dont really burn into the metal.
Are there welding machines on the market who can deal with this problem?
Lucas
Whenever I weld, I seem to have the same problem again and again:
The weld is perfect at the beginning (lets say 2cm or 5 seconds) but then the heat starts building up in front of the torch as I move along and continue welding. I feel I need to speed up moving my hand faster with the result that the bead becomes smaller - which basically is wrong. Ideally I would like a welding machine where it reduces the voltage and amperage a bit to take into account the preheated steel in front of the torch. Its very apparant, if I move with a constant speed that the heat affected zone becomes wider and wider towards the end of the weldment - ideally I want it to have the same HAZ width for the entire length.
I could also adjust the voltage/amperage from the beginning to take into account for the pre heated steel in front of the torch but then the first 2cm of welding are WAY too cold and dont really burn into the metal.
Are there welding machines on the market who can deal with this problem?
Lucas