A Couple Flux Core Welding Issues
Tue, 31 Aug 2021 15:26:27 GMT
Hi everyone,I am new to the forum here, this is my first post. I would eventually like to become a "welder man" as my name would suggest, but I am just a beginner now.I picked up a cheap flux core welder at Harbor Freight, used a spool of wire up, and then bought some (supposedly) better Lincoln Electric .030 wire at The Home Depot. I have a friend who welds steal and he have me some metal sheets to weld on.After looking at my welds, I think my wire speed might be to high. The voltage is low and my welds have spots on the bottom of the metal (see first picture). I tried a "test bead" on the metal and it burned right through (the second picture is the back of the metal it welded through).Uploaded with ImageShack.usUploaded with ImageShack.usIf I could get some opinions on what settings I need to change or techniques I need to change, that would be great, I would really appreciate it!Thanks in advance!
Reply:To critique the welds we really need to see them. Also give us as much info as possible, thickness of metal and so on so we are not guessing. Heat spots on the back of thin metal is common. So is burning thru the edge of thin material until you get the hang of it. I hate to tell you this but you will be fighting that little POS machine learning. It's underpowered for most things, and because it's FC it will burn too hot for thinner materials. It has a very narrow window it works "well" on, from about 16ga to 14ga roughly. Thinner and you will burn thru, thicker and you won't have enough heat to make acceptable welds. Add to that it has very little adjustments on the machine and they have a bad tendency to feed wire eratically which will complicate things as well.Not trying to discourage you, just trying to make you understand why some things will be difficult and frustrating as you try and learn..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Originally Posted by DSWTo critique the welds we really need to see them. Also give us as much info as possible, thickness of metal and so on so we are not guessing. Heat spots on the back of thin metal is common. So is burning thru the edge of thin material until you get the hang of it. I hate to tell you this but you will be fighting that little POS machine learning. It's underpowered for most things, and because it's FC it will burn too hot for thinner materials. It has a very narrow window it works "well" on, from about 16ga to 14ga roughly. Thinner and you will burn thru, thicker and you won't have enough heat to make acceptable welds. Add to that it has very little adjustments on the machine and they have a bad tendency to feed wire eratically which will complicate things as well.Not trying to discourage you, just trying to make you understand why some things will be difficult and frustrating as you try and learn.
Reply:just run a few flat welds and take a few pictures make sure to include what each weld was welded on settings wise that is and i always like to see the dials to
Reply:I've got the same welder...and I'm still learning mysefl. Good luck!
Reply:Originally Posted by DSWTo critique the welds we really need to see them. Also give us as much info as possible, thickness of metal and so on so we are not guessing. Heat spots on the back of thin metal is common. So is burning thru the edge of thin material until you get the hang of it. I hate to tell you this but you will be fighting that little POS machine learning. It's underpowered for most things, and because it's FC it will burn too hot for thinner materials. It has a very narrow window it works "well" on, from about 16ga to 14ga roughly. Thinner and you will burn thru, thicker and you won't have enough heat to make acceptable welds. Add to that it has very little adjustments on the machine and they have a bad tendency to feed wire eratically which will complicate things as well.Not trying to discourage you, just trying to make you understand why some things will be difficult and frustrating as you try and learn.
Reply:Thanks for all of your responses, everyone. I have taken pictures of my welding job using two different speeds. I have also taken a picture of my tip, could it be clogged and causing the welder to break the arc/feed the wire erratically?
Reply:You don't need the MIG gas nozzle when using gasless flux core wire.
Reply:Originally Posted by joedirt1966You don't need the MIG gas nozzle when using gasless flux core wire.
Reply:See pic. Attached Images
Reply:Thanks for your help joedirt1966. That's the piece I thought you were talking about. I will take it off as I thought I needed it. Should I replace/clean the tip, and could this cause erratic wire feeds/interrupted arcs (I can't tell which one it is)? Also, if someone wouldn't mind commenting about my wire feed speed 7 and 9 picture, I would appreciate. Any techniques on how to improve my welds (and I am sure there are thousands) would be appreciated.Thanks!
Reply:the lincoln flux core from home depot is good wirehere a weld with flux core on galv 1/16 with a old weldpak 100 Attached ImagesLast edited by ed mac; 06-21-2011 at 09:38 PM.
Spot Welder for
A Couple Flux Core Welding Issues,Spot Welding Machine for
A Couple Flux Core Welding Issues, Laser Welder for
A Couple Flux Core Welding Issues, Laser Welding Machine for
A Couple Flux Core Welding Issues,Spot Welder manufacturer in China,
A Couple Flux Core Welding Issues Laser Welder manufacturer from China
go to see
Welding Machine for A Couple Flux Core Welding Issues
