These are pictures of a t joint i welded today. I used a miller 252 with 75/25 and lincoln 0.045 flux cored wire. Both plate were cold rolled 1/2". The machine settings were 300 ipm and 30 volts.
After welding all 3 passes on each sides i let it cool then sectioned twice and polished them. I'm concerned with the penetration.
Help and advice welcome
mig and flux core tips and techniques, equipment, filler metal
exnailpounder
- exnailpounder
-
Weldmonger
-
Posts:
-
Joined:Thu Dec 25, 2014 9:25 am
-
Location:near Chicago
Did you go off the chart on the door or your own settings? That looks like a braze rather than a weld. Could you see the bead burning in while welding? I have a 252 and she welds great so I am curious.
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
I dont have a ton of experience with flux so i was just playing around. I was more concerned with keeping the vertical plate vertical and then decided to see what the penetration looked like. what settings would you have used for that material using .045 flux?
exnailpounder
- exnailpounder
-
Weldmonger
-
Posts:
-
Joined:Thu Dec 25, 2014 9:25 am
-
Location:near Chicago
Big worm...sorry I thought you were using MIG. I have almost no experience with FCAW. Bill Beauregard has a 252..he could probably help you.
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
- weldin mike 27
-
Weldmonger
-
Posts:
-
Joined:Fri Apr 01, 2011 10:59 pm
-
Location:Australia; Victoria
Are you dragging the torch or pushing it? Typically, flux core of that size should have very good penetration characteristics.
- MinnesotaDave
-
Weldmonger
-
Posts:
-
Joined:Sun Oct 27, 2013 10:57 pm
-
Location:Big Lake/Monticello MN, U.S.A.
We're you using a dual shield wire or a self-shielded wire?bigworm40 wrote:These are pictures of a t joint i welded today. I used a miller 252 with 75/25 and lincoln 0.045 flux cored wire. Both plate were cold rolled 1/2". The machine settings were 300 ipm and 30 volts.
After welding all 3 passes on each sides i let it cool then sectioned twice and polished them. I'm concerned with the penetration.
Help and advice welcome
Dave J.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
This is a single pass I just made changing the machine settings to the welders recommend specs for 1/2 material but this was hot rolled.
- Attachments
-
- 20150415_070928.jpg (39.83 KiB) Viewed 1494 times
-
- 20150415_070832.jpg (16.92 KiB) Viewed 1494 times
- MinnesotaDave
-
Weldmonger
-
Posts:
-
Joined:Sun Oct 27, 2013 10:57 pm
-
Location:Big Lake/Monticello MN, U.S.A.
I agree, something looks off. Should not have that lack of fusion in the root and it barely fused that bottom part.
Specifically which Lincoln wire are you using?
There are several dual shield wires to choose from and some have a little different wfs and voltage settings.
Specifically which Lincoln wire are you using?
There are several dual shield wires to choose from and some have a little different wfs and voltage settings.
Dave J.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
- MinnesotaDave
-
Weldmonger
-
Posts:
-
Joined:Sun Oct 27, 2013 10:57 pm
-
Location:Big Lake/Monticello MN, U.S.A.
Volts might be a little high for that WFS, but the listing says 150-180 amps - which should be enough to make a pass
(maybe too low actually)
Have you tried higher settings, like in the 200+ amp range?
What technique are you using?
(maybe too low actually)
Have you tried higher settings, like in the 200+ amp range?
What technique are you using?
- lincoln 71A85 ultracore.GIF (43.53 KiB) Viewed 1118 times
Dave J.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
- AKweldshop
-
Weldmonger
-
Posts:
-
Joined:Wed Oct 23, 2013 3:30 pm
-
Location:Palmer AK
I run 25v, 300ipm on my 1/2" plate.
Try running it in the 25-27v range.
That is poor penetration.
Try running it in the 25-27v range.
That is poor penetration.
Just a couple welders and a couple of big hammers and torches.
Men in dirty jeans built this country, while men in clean suits have destroyed it.
Trump/Carson 2016-2024
Men in dirty jeans built this country, while men in clean suits have destroyed it.
Trump/Carson 2016-2024
- Otto Nobedder
-
Weldmonger
-
Posts:
-
Joined:Thu Jan 06, 2011 11:40 pm
-
Location:Near New Orleans
Those are clearly in the ballpark for the proper spray-arc settings for that joint, with .045 dual-shield. I would think a 90/10 mix would suit those settings better, but a gas change is not needed. I would suggest dropping to 275-280 ipm, and being careful to hold a dead-square wire angle (no push, no drag) with no more than 1/2" stick-out (almost [or even actually] dragging the nozzle on the metal), and checking it again.bigworm40 wrote:These are pictures of a t joint i welded today. I used a miller 252 with 75/25 and lincoln 0.045 flux cored wire. Both plate were cold rolled 1/2". The machine settings were 300 ipm and 30 volts.
Dual-shield is so much like stick-welding that it's easy to under-fill due to the challenge distinguishing the puddle from the flux, so be sure you're focusing on the puddle and not the arc.
Steve S
- timothymass
-
New Member
-
Posts:
-
Joined:Mon Apr 20, 2015 3:16 am
-
Location:springfield, mo
did you try lowering your wire speed with mig the more wire you run the colder it will in turn be as there is so much more material going in and also make sure that your staying in the leading edge of the puddle very important on thicker material especially when ones worried about proper fusion
Return to “Mig and Flux Core - gas metal arc welding & flux cored arc welding”
Jump to
- Introductions & How to Use the Forum
- ↳ Welcome!
- ↳ Member Introductions
- ↳ How to Use the Forum
- ↳ Moderator Applications
- Welding Discussion
- ↳ Metal Cutting
- ↳ Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
- ↳ Mig and Flux Core - gas metal arc welding & flux cored arc welding
- ↳ Stick Welding/Arc Welding - Shielded Metal Arc Welding
- ↳ Welding Forum General Shop Talk
- ↳ Welding Certification - Stick/Arc Welding, Tig Welding, Mig Welding Certification tests - Welding Tests of all kinds
- ↳ Welding Projects - Welding project Ideas - Welding project plans
- ↳ Product Reviews
- ↳ Fuel Gas Heating
- Welding Tips & Tricks
- ↳ Video Discussion
- ↳ Wish List
- Announcements & Feedback
- ↳ Forum News
- ↳ Suggestions, Feedback and Support
- Welding Marketplace
- ↳ Welding Jobs - Industrial Welding Jobs - Pipe Welding Jobs - Tig Welding Jobs
- ↳ Classifieds - Buy, Sell, Trade Used Welding Equipment
- Welding Resources
- ↳ Tradeshows, Seminars and Events
- ↳ The Welding Library
- ↳ Education Opportunities