Hood
I am obsessed.
- Messages
- 16,936
- Location
- Carnoustie, Scotland
I decided to start a new thread as the discussion about Frequency of AC welding was discussed in @dazza topic and it was going way OT from its original subject.
Ok so today I had a bit of time whilst waiting for the Chiron to do a job, I cut up 6 pieces of 4mm 5083 Alu approx 50mm x 100mm and tacked them in a T and let sit for 20mins to make sure the heat from the tack had no effect.
I did a fillet weld at three different settings on one side of each then left them to cool for an hour and then repeated on the other side with the same settings.
I then chopped off then ends at exactly the same spot in each which was 15mm in from the end that I did the first run on, so the left side of each pic is a start of a run and the right side is an end of a run I quickly skimmed over with the mill and etched, it is not great as they were not polished enough but here are the results.
First is the welds
Cut and etched in the same order as above
140A 74Hz
140A 160Hz
170Amps 110Hz
Ok so today I had a bit of time whilst waiting for the Chiron to do a job, I cut up 6 pieces of 4mm 5083 Alu approx 50mm x 100mm and tacked them in a T and let sit for 20mins to make sure the heat from the tack had no effect.
I did a fillet weld at three different settings on one side of each then left them to cool for an hour and then repeated on the other side with the same settings.
I then chopped off then ends at exactly the same spot in each which was 15mm in from the end that I did the first run on, so the left side of each pic is a start of a run and the right side is an end of a run I quickly skimmed over with the mill and etched, it is not great as they were not polished enough but here are the results.
First is the welds
Cut and etched in the same order as above
140A 74Hz
140A 160Hz
170Amps 110Hz