mig and flux core tips and techniques, equipment, filler metal
electrince
  • Posts:
  • Joined:
    Mon Feb 17, 2020 4:04 am

I am trying to learn how to mig weld. My main interest is car body work. I am trying to learn to weld 1.1mm steel (about 19 gauge).

I am using an SIP HG2300mp mig/tig/arc combo welder with 0.8mm (about 20 gauge) flux core wire (trying to avoid gas cost). Wire feed setting ranges 1 - 10 and voltage 13 - 24v. I have been trying mostly @ minimum wire speed & 14v. Have ranged between 1-3 wire speed and 13-16v, none of which produced anything better. Have been trying some sort of stitch method as an attempt to run constant eeee's would put too much heat in this thin metal and burn holes.

So here are some front and back photos of my practice welds and a photo of the car floor patch I am trying to weld on this project..

1) Thoughts on my weld attempts, 1 out of 10 (I won't be offended I think it's 2/10), anything obvious I have done wrong?
2) Is the gap too large? am I stupid for trying to weld a 'gap' as opposed to butt or lap joint
3) Any other advice?

Image
Image
Image
User avatar
  • Posts:
  • Joined:
    Sun Oct 27, 2013 10:57 pm
  • Location:
    Big Lake/Monticello MN, U.S.A.

I can't see the images - but you are not going to get really nice body panel results with flux core.

Just go ahead and use solid wire and gas. I use 100% co2 to save money. I rarely use mixed gas.

Here is my '89 f150 plow truck I saved (and sold to my brother).

All welding was with 0.035" wire and 100% co2.
(smaller wire would have been better, but it's what was in the machine ;) )
89 ford plow truck rocker.jpg
89 ford plow truck rocker.jpg (41.61 KiB) Viewed 1357 times
89 ford plow truck floor gone.jpg
89 ford plow truck floor gone.jpg (44.12 KiB) Viewed 1357 times
89 ford plow truck floor done.jpg
89 ford plow truck floor done.jpg (33.74 KiB) Viewed 1357 times
Perfect color match - LOL ;)
89 ford plow truck done.jpg
89 ford plow truck done.jpg (40.12 KiB) Viewed 1356 times
Dave J.

Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
Eloza777
  • Posts:
  • Joined:
    Sun Feb 09, 2020 10:00 pm

Take your time sheet metal took me a long time to learn To get it where I feel proud of my workbut it’s not too hard
Attachments
1BC14A2E-9456-465B-89B0-1D67056BC4B6.jpeg
1BC14A2E-9456-465B-89B0-1D67056BC4B6.jpeg (71.75 KiB) Viewed 1337 times
Eloza777
  • Posts:
  • Joined:
    Sun Feb 09, 2020 10:00 pm

If you’re trying to metal finish the grinding process is as important as the welding process I would get perfect fitment and wells and I would mess up my panels on the granting process If it’s not done correctly it will warp the panels as much as the welding
Attachments
04A667CF-D1CE-454C-B0DB-B52D4A864403.jpeg
04A667CF-D1CE-454C-B0DB-B52D4A864403.jpeg (51.35 KiB) Viewed 1336 times
Floyd9181
  • Posts:
  • Joined:
    Thu Feb 20, 2020 2:42 pm
  • Location:
    Groves Texas

MinnesotaDave wrote:I can't see the images - but you are not going to get really nice body panel results with flux core.

Just go ahead and use solid wire and gas. I use 100% co2 to save money. I rarely use mixed gas.

Here is my '89 f150 plow truck I saved (and sold to my brother).

All welding was with 0.035" wire and 100% co2.
(smaller wire would have been better, but it's what was in the machine ;) )
89 ford plow truck rocker.jpg
89 ford plow truck floor gone.jpg
89 ford plow truck floor done.jpg
Perfect color match - LOL ;)
89 ford plow truck done.jpg

That's some nice work there! I plan to learn as well on some body panels in the near future. I've heard lots of spot welds as you go
Post Reply