I want to purchase a welder however I do not have a clear vision of what type I would need.
My first use would be to replace body panels and patches.
It would also be helpful it was multi function but I don't understand the different needs for welding different substrates.
Lastly, cutting, if that was possible that would be a bonus.
Is acetylene and O2 an option or are machines better?
Does anyone know anything about the YesWelder?
I'll comment as someone who did a LOT of research last year in preparation for beginning my welding journey this spring. I'm an ME by day and obsessively analytical.
You say that body work is your "first use" but will it be your primary use? Only use?
Here's a couple questions I'd ask yourself to help you narrow things down a bit:
1) How important is speed vs quality?
2) What percentage of the time will you weld on material < 1/8" thick? 3/16"? 1/4"?
3) Do you expect to weld aluminum with any regularity?
Personally, I think you'd want to be in the realm of a 180amp wire feeder with thin wire (0.024) and C25 gas. I also think you'd be glad you got "pulse mig" ability as the pulse feature really helps reduce heat input on thin panels.
There are mig wires now designed
specifically for panel work that leave soft, easy grinding beads behind. No need to mess with oxyfuel to get nice ductile welds.
As for brands, you can go blind on all the pop-up Chinese welder companies that have saturated the market with Youtubers and forum monkey shills. You'll get a million recommendations for Primeweld, YesWelder, Everlast, etc.
Miller and Lincoln are the two big dogs that have basically captured the local welding stores completely. I feel like they overpriced for what they are in many cases-- too much like "Tool truck" for my blood.
Almost by process of elimination, I ended up looking at welders that weren't that cheap but were neither blue nor red. Esab has some exciting stuff now as does HTP.
HTP has a Pro Pulse that is really sort of tuned to be amazing at panel work. It's not super expensive either for an advanced 220 amp class machine at $2200. Also NOT made in china.
I have no affiliation with any welding company and only shill for Sanrex because I'm super happy with my two Sanrex machines. But they are more industrial and emphasize durability and duty cycle over features. The HTP machines, on the other hand, have a LOT of features. The only ding I'd put on the HTPs is the lack of power factor correction, but since they are more of a dedicated 240V shop-kept machine, this is mostly moot.
If you have any concept of ever wanting useful 120V output, Power Factor Correction (PFC) is in my opinion an absolute MUST have, not a luxury.
The HTP® Pro Pulse® 220 MTS—a multi-process machine capable of MIG, synergic MIG, synergic pulsed MIG, DC TIG, and Stick—offers a manual mode as well as 22 synergic programs, both with and without pulse, giving you the advantage of a virtually spatter free weld! Parameter selection on pulsed...
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