Electronics > Mechanical & Automation Engineering

Welding - Stick, TIG and MIG

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Mechatrommer:

--- Quote from: Brumby on November 07, 2021, 05:23:04 am ---This topic just brought back a memory of frustration......

A few months ago I walked into the tool shop of my local Bunnings to see someone buying a highly marked down MIG/TIG/Stick welder for $200.  I asked the guy there (pointing to the one being purchased) if they had any more and he said they had 3 that were sitting around for ages and finally made the decision to just clear them out ... and that was the last one.  Normal price was in the $400-$500 range and while not the best you could get, it certainly comfortably covered anything I could envisage.

Now, whenever I go in, I ask ... but have not found anything close ever since.    :(

--- End quote ---
my mma/mig/tig arrived yesterday, its local brand for about $200+ rated 200A+ or whatever.. nowadays abundant of them can be had from china as cheap as $100 3 in 1 mma/mig (gasless)/tig but i dont want to be too cheap so i picked the one that can support gas mig.. it took me this long because of fear and frustration factor (solid state tech are not as durable as the dinasour age thick transformer type, and my bad experience with mig expecting it to behave like a stick welding, my bad actually) so i've been living with dinasour age transformer for 20+ years. recently i had a fucked up moment with filleted metal that i tried to assemble with the old machine, and electric bill skyrocketed for no good reason, that forced me to open my option to solid state igbt tech. i can see the one that i bought, has neat tricks like VRD, Arc Force, Hot Start, 2T/4T. so from the outside it seems to be an interesting machine with tech that i missed for years compared to the single mode fat heavy assed dinasour transformer.. hopefully the extra $100 tag compared to the cheapest hunglow is a worthy buy. lets see how many years (or months?) of gut it can has. finger crossed. ps: my tig torch,w accs are on their way, the struggle is actually on trying to find Argon/CO2 tank supplier near my secluded area here.

coppercone2:
you forgot acetylene

https://www.youtube.com/user/897473

Gas brazing is a wonderful technique. yes he is a artist but its extremely useful for physics objects. There are alot of things that naturally you would want to weld, but brazing is strong enough and easier to apply and makes for a quicker project... so its a worthwhile technique.. plus its extremely cost effective, especially if you want to stay brand-name with your welding purchases...

beanflying:

--- Quote from: beanflying on November 01, 2021, 04:03:29 am ---Catch all ramble of sticking metal together by electrical means. Can likely include Spot or Laser Welding too or whatever process you like apart from maybe Gas Torch which deserves its own thread.

snippity.....

--- End quote ---

No I didn't I suggested it deserves and needs its own as it is every bit as diverse and specialized as Electric welding.

wilfred:

--- Quote from: Brumby on November 07, 2021, 05:23:04 am ---This topic just brought back a memory of frustration......

A few months ago I walked into the tool shop of my local Bunnings to see someone buying a highly marked down MIG/TIG/Stick welder for $200.  I asked the guy there (pointing to the one being purchased) if they had any more and he said they had 3 that were sitting around for ages and finally made the decision to just clear them out ... and that was the last one.  Normal price was in the $400-$500 range and while not the best you could get, it certainly comfortably covered anything I could envisage.

Now, whenever I go in, I ask ... but have not found anything close ever since.    :(

--- End quote ---
I was in Bunnings a few weeks ago and saw a 140A stick welder for $99. I'd been wanting to try welding for a while and had seen someones YT video on one they bought (from Bunnings) for $50. It was on clearance and I just said that I'd seen some video on YT where it was $50 can I buy it for $50 too. They said yes. It was a Bossweld mini-arc 140. I'm hoping if you buy it from Bunnings it will at least meet the specs on the box.

I saw a few videos on YT tearing down cheap welders bought on Ebay and something I did notice was this one had two big input caps instead of just one. One clearly had space on the PCB for two but one was  unpopulated. And internally the Bossweld one had copper bussbars where the Ebay cheapies had aluminium (if that). Don't know if it makes a huge difference but it is clearly cheaping out.

Ed.Kloonk:

--- Quote from: wilfred on December 18, 2021, 06:19:28 am ---
--- Quote from: Brumby on November 07, 2021, 05:23:04 am ---This topic just brought back a memory of frustration......

A few months ago I walked into the tool shop of my local Bunnings to see someone buying a highly marked down MIG/TIG/Stick welder for $200.  I asked the guy there (pointing to the one being purchased) if they had any more and he said they had 3 that were sitting around for ages and finally made the decision to just clear them out ... and that was the last one.  Normal price was in the $400-$500 range and while not the best you could get, it certainly comfortably covered anything I could envisage.

Now, whenever I go in, I ask ... but have not found anything close ever since.    :(

--- End quote ---
I was in Bunnings a few weeks ago and saw a 140A stick welder for $99. I'd been wanting to try welding for a while and had seen someones YT video on one they bought (from Bunnings) for $50. It was on clearance and I just said that I'd seen some video on YT where it was $50 can I buy it for $50 too. They said yes. It was a Bossweld mini-arc 140. I'm hoping if you buy it from Bunnings it will at least meet the specs on the box.

I saw a few videos on YT tearing down cheap welders bought on Ebay and something I did notice was this one had two big input caps instead of just one. One clearly had space on the PCB for two but one was  unpopulated. And internally the Bossweld one had copper bussbars where the Ebay cheapies had aluminium (if that). Don't know if it makes a huge difference but it is clearly cheaping out.



--- End quote ---

Mate. Do yourself a favour and find a local men's shed. Identify the resident hermit there and they will get you going with technique and tool advice.

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