- Thread starter Rishi
- Start date
I agree, but it is hard to tell because the angles are hard to see.
The stickout is too much but the arc length might be OK. The shielding gas may not be making to to where the action is.
A video of the welding would be very helpful.
Here is another frame where it looks like the arc length is OK but the stickout is too great. It also looks like the torch needs to move to the right.
Jack
Thank you
Request feedback on how to reduce spatter based on details shared thus far
Erie Fred
Member
- Messages
- 4,791
- Location
- Erie, Pa USofA
We would if we could, but need more imformation
Again you don't upload the video, you post it on u-tube, and simply post a link here to said video.
Erie Fred
Member
- Messages
- 4,791
- Location
- Erie, Pa USofA
Need to see and hear the arc, and the resultant puddle.
skotl
Forum Supporter
- Messages
- 9,865
- Location
- Edinburgh, UK
Nearly
You have the video marked "private" so we can't view it - can you please change it to "unlisted"?
Munkul
Jack of some trades, Master of none
- Messages
- 7,520
- Location
- Cumbria
Firstly, stop using anti spatter like that. It will not be helping anything and quite possibly be part of the problem. It's FAR FAR too thickly brushed on.
Next, get the nozzle and tip a lot closer to the workpiece. That stickout is excessive and it causes it to drop current (meaning the voltage will be too high for the current and therefore create globular spatter)
After that, start tweaking the voltage (if it's inverter based) and/or wirefeed to get a spray transfer with no spatter at all - easily done on a quality machine with clean workpieces.
What gas mix are you running?
Next, get the nozzle and tip a lot closer to the workpiece. That stickout is excessive and it causes it to drop current (meaning the voltage will be too high for the current and therefore create globular spatter)
After that, start tweaking the voltage (if it's inverter based) and/or wirefeed to get a spray transfer with no spatter at all - easily done on a quality machine with clean workpieces.
What gas mix are you running?
Sorry due to welding fumes, unable to take a video from Close
Thanks for your response. We will minimize usage of anti spatter. When we bring nozzle and tip closer to the workpiece, then there are challenges with regard to bending of torch head because currently gap between torch and workpiece is about 15m , moreover workpiece to be welded is semicirular so torch fouls with workpiece if brought closer than existing. We are using Argon with CO2 at 80:20 ratio
skotl
Forum Supporter
- Messages
- 9,865
- Location
- Edinburgh, UK
Well, honestly, something is going to have to give...
A few of us have suggested that the spatter is due to the torch being too far away, and you're saying you can't get it closer, so the spatter isn't going to improve. That kinda means you either need to live with it or change your physical approach / layout / torch.
I'd also be worried about porosity if your gap is too large as that would suggest you're not getting enough gas around the puddle as well. Perhaps also suffering from some stop/start imperfections in the weld, too.
You asked for advice and it's been pretty much "get closer" so it's your call what to do next...
henry Kadzielski
Member
- Messages
- 1,208
- Location
- Australia Wollongong
My two cents worth. One thing that struck me is the noise. Boy what a noise that sound ugly. Can we get a picture of the completed weld, as the vid ends there is no pic of the welded sections, just the brake shoe drops on the bench and vid ends. If you are saying that the torch is only 15mm away, at that voltage you should be in spray transfer mode which is quiet. So change the gas type and or supplier and change the wire that you are using to a different supplier. I have had 'very rare' issues with gas and wire. Do a weld by hand and see the result that you are getting. I use 52 gas (97% argon, 5%co2, 2%O2) for everything and gives a beautiful clean weld, no spatter. You have to try something different, make a big change or nothing will improve
That is a finished weld no cleanup and no anti spatter. Just as welded, this is what you should be getting. The bottom plate is 10mm and the weld is a 10mm leg length fillet, welded at 380amps, my machine absolutely maxed out, using 52 gas and 1.2mm solid wire ER70-06.
That is a finished weld no cleanup and no anti spatter. Just as welded, this is what you should be getting. The bottom plate is 10mm and the weld is a 10mm leg length fillet, welded at 380amps, my machine absolutely maxed out, using 52 gas and 1.2mm solid wire ER70-06.
Erie Fred
Member
- Messages
- 4,791
- Location
- Erie, Pa USofA
Time to pay for a visit by a certified welding engineer ?
