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other:welding [2022/11/06 09:06] – [General] oscarother:welding [2022/11/06 09:10] (current) – [General] oscar
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   * You control slag deposition in 3 ways...travel speed, arc length, and angle of electrode. Experiment with all 3.    * You control slag deposition in 3 ways...travel speed, arc length, and angle of electrode. Experiment with all 3. 
   * 1.6mm: much flux in relation to metal in the rod, so you have a huge amount of slag and a small weld pool which makes it hard to maintain the arc length properly. 2.5mm are probably the best to learn on as there's a nice ratio of flux to metal in the rod, they burn down at a rate that's not too fast, and don't generate huge amounts of heat like 3.2 or 4.0mm rods do, meaning you don't need thick chunks of steel to practice on. 2.0mm are better than 1.6mm, but still more tricky   * 1.6mm: much flux in relation to metal in the rod, so you have a huge amount of slag and a small weld pool which makes it hard to maintain the arc length properly. 2.5mm are probably the best to learn on as there's a nice ratio of flux to metal in the rod, they burn down at a rate that's not too fast, and don't generate huge amounts of heat like 3.2 or 4.0mm rods do, meaning you don't need thick chunks of steel to practice on. 2.0mm are better than 1.6mm, but still more tricky
 +  * using 1.6mm rods too springy , difficult to control not enough deposition,to much slag , difficult to find the right current settings 2mm is way better but I still prefer 2.5mm, easily weld 1.5mm sheet metal with them using 60-70A DCEP.
   * **__Try DCEP__**, with DCEN the electron flow is from the rod into the fillet/joint the rod is about 2000°c and the metal about 4000°c which puts more heat into the parent metal being welded. If you use DCEP the electron flow is reversed as well as the heat bias, the filler material/rod also melts at approximately twice the rate thus the filler material deposit is approximately twice, which will produce a fillet fill easier. On 2mm steel you can easily run 2.5mm on DCEP with decent results.   * **__Try DCEP__**, with DCEN the electron flow is from the rod into the fillet/joint the rod is about 2000°c and the metal about 4000°c which puts more heat into the parent metal being welded. If you use DCEP the electron flow is reversed as well as the heat bias, the filler material/rod also melts at approximately twice the rate thus the filler material deposit is approximately twice, which will produce a fillet fill easier. On 2mm steel you can easily run 2.5mm on DCEP with decent results.
  
other/welding.1667725610.txt.gz · Last modified: by oscar