Stick welder recommendation ?

   / Stick welder recommendation ? #11  
I've been trolling for a "nice" used AC/DC Stick welder in my area and they are very rare.

Northern Tools occasionally has the Hobart Stickmate AC/DC unit on for under $400 with free shipping too. They are as cheap as I've seen anywhere for that unit.

PB
 
   / Stick welder recommendation ?
  • Thread Starter
#12  
Several recommendations I've been receiving say just go with a Hobart Stickmate 235 AC/DC or Lincoln Tombstone and be done with it.

But the DC maximum amps I'm seeing is maybe around 160-175 amps.

Is this enough when welding with DC for 3/8 - 1/2 inch plate ? Or would I have to use AC ?

I seem to recall mostly using a setting of about 200 when I was in welding class and for sure I needed a little more than that (210 amps I recall) when blowing holes through thick plate with an arc (which I really liked since it seemed to beat the heck out of drilling).

What are the limitations of having 175 max amps DC versus a 200 or 250 amp machine ?

I also got a response on one of the welding forums that you don't necessarily want to weld 3/8 or 1/2 inch in a single pass anyway due to "HAZ" (large 'heat affected zone') and an excessively large, overheated weld.

So maybe when welding the thick stuff 160-175 amps DC is enough.

Any opinions ?

(And thanks for all the helpful prior posts. Very helpful).

Bob
 
   / Stick welder recommendation ? #13  
You would use the higher AC Amps for the thick stuff. It's going splatter more but it will give you the penetration you need. You can always do one deep pass with AC for the penetration and then use DC to cover the weld with something more attractive. At least that's my understanding - I'm only book smart not experience smart and there is a big difference between the two. ;)
 
   / Stick welder recommendation ? #14  
Man,,some people just wanta give advise,,,number 1,,you get better penatration with dc than ac,,,number2,,you can weld some thing 8 inches thick with 120-130 amps,you just gotta prepare groove and make multipasses,,[how do you think they weld pipe thats an inch thick,,just one pass?,,you'd need an 1 1/2 dia rod,not to mention it wouldn't work],,,,funny,,,,thingy
 
   / Stick welder recommendation ? #15  
Thingy.. i think you are forgetting the amperage limitations we are discussing here. While DC may get better penetration vs AC.. The fellow is comparing 160a DC with 235AC. I'm not omnipitant and an expert at everything like you are... but.. i'm guessing 235ac and a big 6011 rod is going to get more penetration than 160a dc...and whatever rod.. etc.

Soundguy
 
   / Stick welder recommendation ? #16  
Soundguy,I know you don't know as much about welding as me,no need for you to say that,so,,listen.
Basics,,,you don't try and weld something in one pass unless its thin,,,like I've said,,how do you all think they weld a 1 inch thick piece of pipe or plate that needs to be a full penatration weld?,,by using a 2 inch rod at 500 amps??? no,,they make multiple passes,,using 1/8 rod and 5/32 rod,,[maybe even some 3/16 rod],,they use the bigger rod for speed,,,but you can weld up 1 inch plate and have it pass x-ray and a bend test with 1/8 rod at about 125 amps or so,,you make multiple passes,[look at it like a whole bunch of little welds tied into each other],,,,just telling you all the facts.
Some welding salesman started this stuff of this mig machine will weld this thick a steel in one pass stuff,,makes no since to a welder however,,cause thats not how you go about welding something,,,,maybe sheetmetal.
And when you start using dc current ep,,you don't want anymore of them 6011,,you use 6010,,and 7018,,,get some 3/32 for thin stuff,,get some 1/8 for thicker stuff,,like I said,,,a 1/8 rod uses about 125 amps of dc power,,,but the way the duty cycle works out on these machines is you need about a 180-200 amp machine to use that 1/8 rod for any length of time,,,this is why you need a bigger machine,duty cycle,,,,not to run a 3/16 rod,,,,plus with a machine thats about a 200 amp,,you can use 5/32 rods,when you want to fill up something faster,,,plus you could do some carbon arc gouging with it,if you ever had some old nasty welds to remove,,,thingy
 
   / Stick welder recommendation ? #17  
thingy said:
Soundguy,I know you don't know as much about welding as me,no need for you to say that,so,,listen.

happy001.gif
happy102.gif
 
   / Stick welder recommendation ? #18  
Soundguy,I know you don't know as much about welding as me,no need for you to say that,so,,listen.

Thingy, how about putting the Know It All comments on a shelf instead of filling up TBN with the Bovine Scatology. The comments are rude, not needed and I sure don't think they are funny. If you have something to say you don't have to slap down other TBNers in the process.

Later,
Dan
 
   / Stick welder recommendation ? #19  
Now that is funny,,how do you get them little men to roll around like that anyways? thingy
 
   / Stick welder recommendation ? #20  
Dan,you got some funny words there,,,I guess you didn't read soundguys post to me? [right above mine],he called me a know it all,I just agreed,in this topic anyways.
Since me and you's talking now,what do you think about the subject? thingy
 

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