Mini gantry crane

[jack707]

Jim you are starting to get on my nerves here! what are you a text book welder? I probably use more welding process then you so far in my life! Let me tell you so of the welding I done a few years ago I welded a seam that was about 100 feet or so with FC duel shield 75/25 mix and it was in the winter! I had to use a JLG you know what those are don't you Jim? Well It was a little windy so I manned up JIM I thought out side the text books I got visqueen you know what that is Jim? I use that as a wind break around the rails of the JLG warmed it up with the propane torch and laid BEADS!. You see Jim you have NO EXPERIANCE out side of the text books! but I do! that separate's me from you CLUELESS Jim!

 

[Jim Timber]

Yep, I'm clueless. So clueless, I'll post a pic of my current MIG rig that I've only had about 8 years.

 

[Jim Timber]

Jim you are starting to get on my nerves here! what are you a text book welder? I probably use more welding process then you so far in my life! Let me tell you so of the welding I done a few years ago I welded a seam that was about 100 feet or so with FC duel shield 75/25 mix and it was in the winter! I had to use a JLG you know what those are don't you Jim? Well It was a little windy so I manned up JIM I thought out side the text books I got visqueen you know what that is Jim? I use that as a wind break around the rails of the JLG warmed it up with the propane torch and laid BEADS!. You see Jim you have NO EXPERIANCE out side of the text books! but I do! that separate's me from you CLUELESS Jim!

Hey, wait a minute! You don't use MIG on job sites because FCAW is better... You just said that yesterday!

Please tell us how to use 7018 on aluminum. I'm all ears to learning new tricks dude.

 

[chim]

I did mention it. Hauling a power supply, feeder, bottle, and still having to run a power cord up to the work area. SMAW is by far the most portable method of arc welding, it also uses the fewest moving parts.

I stand (sit) corrected. Missed that.

 

[jack707]

Mig is HARDIRE JIM and FC has the flux inside or you can use it without the flux and you can run it hotter then MIG! so you get more penetration!. Your right I like Smaw and that's what I have in the pole barn! Like I said yesterday mig is ok for body shops and hobbyist but if you have a serious weld job that's need good bead appearance and penetration then you pick stick or FC GOT IT?. Also when you use FC with co2 that's also gives more penetration unlike argon and hardwire.

 

[s219]

Both textbooks and real world experience show that MIG can provide penetration equivalent to stick. You can choose whichever you prefer for the working conditions, but penetration is not the issue.

 

[LD1]

Mig is HARDIRE JIM and FC has the flux inside or you can use it without the flux and you can run it hotter then MIG! so you get more penetration!. Your right I like Smaw and that's what I have in the pole barn! Like I said yesterday mig is ok for body shops and hobbyist but if you have a serious weld job that's need good bead appearance and penetration then you pick stick or FC GOT IT?. Also when you use FC with co2 that's also gives more penetration unlike argon and hardwire.

Its comments like this that show you dont have a clue about mig. And make me think you only have experience with 110v machines

Never seen a bodyshop with a 450a mig welder. So just what are those made for?

Again, its NOT about the process, its about the proper welder and consumables.

A mig can run too hot or too cold. So can a stick. There are mig welders that will flat blow through a 1/2" plate as if it were 22 gauge steel.

If you are lacking penetration trying to weld thick metal with a mig, turn up the heat. If the heat is already all the way up, your welder is too small, get a bigger one. Same thing with stick. Would you attempt to weld structural iron 1"+ thick with a 90A inverter stick machine running on 110v? I would hope not. You would choose a machine large enough to do the job. Why can you not admit that you can ALSO choose a mig large enough as well?

 

[Jim Timber]

FCAW is a variant of MIG and I used the terms correctly in my previous posts. When I was referring to FCAW it was actually regarding dual shield FC, because that's where things get really interesting in the puddle and the heat can be ramped way up depending on shielding gas used.

 

[jack707]

Its comments like this that show you dont have a clue about mig. And make me think you only have experience with 110v machines

Never seen a bodyshop with a 450a mig welder. So just what are those made for?

Again, its NOT about the process, its about the proper welder and consumables.

A mig can run too hot or too cold. So can a stick. There are mig welders that will flat blow through a 1/2" plate as if it were 22 gauge steel.

If you are lacking penetration trying to weld thick metal with a mig, turn up the heat. If the heat is already all the way up, your welder is too small, get a bigger one. Same thing with stick. Would you attempt to weld structural iron 1"+ thick with a 90A inverter stick machine running on 110v? I would hope not. You would choose a machine large enough to do the job. Why can you not admit that you can ALSO choose a mig large enough as well?

Hey LD I was not talking you you ? so go sit in the truck and don't touch the radio

 

[Sodo]

Both textbooks and real world experience show that MIG can provide penetration equivalent to stick. You can choose whichever you prefer for the working conditions, but penetration is not the issue.

Basically the penetration must be sufficient. With more or less penetration you need to choose the appropriate weld prep, or configuration of your weld joint.

To assert that more penetration is better, or inevitably produces a stronger stronger weld seems like a rookie thing to say/write. It's too simplistic, almost ridiculous sometimes. It probably shouldn't enter the conversation without the specific joint type or joint prep included.

 

[4570Man]

I added these teeth which are 1/4 steel welded to 3/8 steel. The bottom ones drag the concrete when you are closing it. They have been bent back at 45%. My mig weld held and I am not a pro welder. I am not arguing that a stick penetrates better. I think if I welded two pieces with my mig and the other one with 7018 the mig would be stronger because I am a way better mig welder than a stick. The big advantage to my stick is it handles oil, rust, and paint better. I also have 100 foot leads and I can weld in the parking lot without dragging the mig around the shop.

 

[Sodo]

I think if I welded two pieces with my mig and the other one with 7018 the mig would be stronger because I am a way better mig welder than a stick.

I've said that before, that a rookie with a MIG may produce a stronger weld than birdpoop with a stick. The stick penetrating more here and there may not help much. And the MIG is better looking. Incidentally those are FINE welds. If those are welded both sides there is no way they will break off, ever.

 

[4570Man]

I've said that before, that a rookie with a MIG may produce a stronger weld than birdpoop with a stick. The stick penetrating more here and there may not help much. And the MIG is better looking. Incidentally those are FINE welds. If those are welded both sides there is no way they will break off, ever.

Yes, they are welded both sides. I'm not a bird poop stick welder, but I can still do better with a mig. I agree that a half way decent mig weld is stronger than a bird crap stick weld. Here is what my stick welds look like.

 

[jack707]

Basically the penetration must be sufficient. With more or less penetration you need to choose the appropriate weld prep, or configuration of your weld joint.

To assert that more penetration is better, or inevitably produces a stronger stronger weld seems like a rookie thing to say/write. It's too simplistic, almost ridiculous sometimes. It probably shouldn't enter the conversation without the specific joint type or joint prep included.

Your right it depends on what type of joint. A 6010 rod gives more penetration so you would use that on a bucket on your tractor or 7018 NOT MIG! with hard wire. A lot of people like the mig because its easy to learn and do not as easy as tig or stick.

 

[Shield Arc]

I worked heavy civil / marine construction all my life. In the early 1980s Lincoln came out with the LN-22 wire feeders, then later the LN-25 wire feeders. I ran an LN-22 in Alaska in 90-MPH wind. I went for years never seeing a stick electrode on a job site. Wire feeders were / are a game changer in construction.

Here's some pictures of penetration!

 

[LD1]

you guys have NO IDEA WHAT they have on a construction site! all you know is book theory no real world experience!.

Hey LD I was not talking you you ? so go sit in the truck and don't touch the radio

So when did you decide to stop talking to me? If you want to be childish and choose that route, I cannot force you to reply. But rest assured, I AM talking to you. And will to continue to call out Ignorant statements until you either educate yourself, or quit posting ridiculous comments for some other reason.

Your right it depends on what type of joint. A 6010 rod gives more penetration so you would use that on a bucket on your tractor or 7018 NOT MIG! with hard wire. A lot of people like the mig because its easy to learn and do not as easy as tig or stick.

Another ignorant comment. What proceess do you think is used at the factory to weld buckets together? I have welded lots of implements and modified buckets with mig. Also built a splitter that has to handle ~18 tons of force. Welded them 1" thick wedge, 1" thick anchor block, and 1" thick pusher all with mig. I am glad I didnt stick weld it. Would have taken a lot longer.

I worked heavy civil / marine construction all my life. In the early 1980s Lincoln came out with the LN-22 wire feeders, then later the LN-25 wire feeders. I ran an LN-22 in Alaska in 90-MPH wind. I went for years never seeing a stick electrode on a job site. Wire feeders were / are a game changer in construction.

Here's some pictures of penetration!

Wondering where you have been. Thanks for giving some real world heavy construction experience.

 

[Shield Arc]

In the 1970s construction got slow here in the Puget Sound area. So I went to work in a Fab shop building nuclear waste tanks. These tanks were 8-feet in diameter, and 8-feet tall. Some of the tanks had 7-inches of lead in the wall, floor, and ceiling. All of the tanks had a 4" X 8" square stock rolled, and welded at the top of the tanks for lifting. The square stock had a 1 7/8" fillet weld top and bottom. For the first 2-years we ran 1/16" Mig wire. The last year I worked there we switched to dual shield.
The NRC required us to retest every 3-months. 1-inch thick V-butt plate side bends.

 

[sandman2234]

I listen to all this good (and some not so good) advise and fondly remember something my welding shop instructor told me when I tired of practicing with a tig welder, and wanted to go try out a mig...
"Get your butt back in that tig booth, I can teach a monkey to run a mig gun"
Still laugh about that when somebody asks me why I don't own a mig...
David from jax

 

[Sodo]

That is funny, and true! But that's no reason to avoid a MIG. The only reason to NOT own a MIG, is to NOT have enough projects for it. And I wouldn't wish that on anybody.:thumbsup:

 

[Shield Arc]

Years ago when there was a lot of manufacturing work going on in this country. They called Mig welders, idiot welders.:laughing: