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  #21  
Old 12-31-2019, 01:22 PM
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Shade Tree Welder Shade Tree Welder is offline
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Originally Posted by Ironman View Post
I sure can't argue with that. Last time for me was 2005.

I threw 2-40 pound rolls into the scrap after cutting a weld to check for porosity. I was welding bucket cutting edges in a remote location and flying gas bottles was a problem. But I went back to a stick, it works and gives a solid weld.
I bet you were running DCEP and not DCEN.
I have diagnosed that problem more than a
few times.
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  #22  
Old 12-31-2019, 01:22 PM
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https://www.hobartbrothers.com/uploa...bshield21B.pdf
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  #23  
Old 12-31-2019, 03:35 PM
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Originally Posted by Stickrunner76 View Post
Greywynd will a John Deere 648G2 meet your standards of HEAVY EQUIPMENT ? OR how about cat d6h or better yet old school cats like D8 with the pony ? I happen to know a lil bit bout equipment hoss ! Been around all my life and usually working on some of it daily !


Well, two weeks ago I was working on a D11 in one bay, and had two more, one each side of me in adjacent bays. Down a few more there were two 797 haul trucks on opposite sides of the aisle.

I enjoy all equipment, owned a little two ton mini ex for almost 20 years, still have a 15 ton excavator, I’ve just found myself working on this stuff the last few months.


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  #24  
Old 01-01-2020, 09:29 AM
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Originally Posted by greywynd View Post
Well, two weeks ago I was working on a D11 in one bay, and had two more, one each side of me in adjacent bays. Down a few more there were two 797 haul trucks on opposite sides of the aisle.

I enjoy all equipment, owned a little two ton mini ex for almost 20 years, still have a 15 ton excavator, I’ve just found myself working on this stuff the last few months.


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32 years ago, I had to dig broken taps from a 788 wheel (motorized wheel)

I simply laid it down with the crane, placed my fat ass on the edge, leaned back, and sat upright inside it, the tap was above my head.....
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  #25  
Old 01-01-2020, 12:22 PM
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Haven’t had the opportunity to work on any of the ‘shovels’ here yet. Something that loads 100+ tons per bucket is massive! Apparently the company ends up working on them 2-3x a year.


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  #26  
Old 01-02-2020, 02:02 AM
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Why not buy some 70S wire and a bottle of C25 gas and do some MIG-ing? Doesn't that machine come with a gas regulator/gauge?
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  #27  
Old 01-02-2020, 03:43 AM
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May also want to check if it is a flux gun or MIG gun.
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  #28  
Old 01-03-2020, 06:30 PM
JBFab JBFab is offline
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I would recommend using .045 dualshield and pick up a bottle of co2. It's fairly inexpensive as far as shielding gas, and you can get it in small bottles if portability is a concern.

NR211 (gasless) fluxcore has become more prevalent in professional settings, but in my opinion you can't beat dualshield with consumer/prosumer grade machines. Be sure to make sure your machine has enough amperage to run the .045. I recommend esab dualshield 9100, and if you can't get that lincoln 71m.

Follow the suggested settings from the wire manufacturer. The only negative I have noticed is with dualshield is the presence of "worm tracks" on the surface of the weld if you are running outside the recommended voltage.

If you go this route you may as well get a roll of solid wire for MIG welding on thinner materials. .030 or .035 are good sizes. You can run these with CO2, an Ar mix is nicer but certainly not necessary. I would recommend ER70-S6 if you are welding anything that is not pristine, new steel with not much milk scale. If you are blessed to work with clean new material with little scale (like HRPO) go with ER70-S2.

I almost forgot - !!! (For Doug)

Also, use u-groove rollers for flux core and v groove for solid for the reasons Brian mentioned and others.

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Last edited by JBFab; 01-03-2020 at 08:24 PM.
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  #29  
Old 01-03-2020, 09:33 PM
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Quote:
Originally Posted by digger doug View Post
1" fillet straight up in the corner, in one pass.
Damn skippy!!!

Must have run that TSC Premium Wire...
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  #30  
Old 01-05-2020, 11:01 PM
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I run.035 flux core. Have for years. I can make some pretty welds, and I've made welds I've been so embarrassed by I ground them out and redid them.
Flux core isnt just for your crappy 110 volt harbor freight machine... i run it in my CP250/S52 100% duty cycle Miller, and it makes a HUGE difference. I'm no professional, but i can pretend.
Bottom line, i run it because I'm CHEAP. Its about 1/3 the price. I have also been running without the shielding nozzle (just bare tip) for several years now. Its cleaner, and you can get into spots you cant when running it.

In no way am i endorsing to abandon shielding gas, I'm just saying you can do it with success. It's like any process. The more you practice it, the better you get.
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