 Weld porosity HELP... |
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| ONTHEGRIND |
 Dec 16 2013, 09:15 PM
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Member  Group: Members Posts: 286 Joined: 10-November 08 From: California Member No.: 9,738 Region Association: None  |
So I have a Lincoln hd 3200 mig that hasn't been used in a year or so.. I went and got a bottle filled last week argon co2 mix using solid .025 wire with the correct brand new tip welded on brand new steel tried the l/min from very low to very high always welds the same. I can here gas exiting the gun ground is clean here is a photo of what im working with.. The welds are very black be a wire brush on a die grinder makes a pass over them..
The top weld is c 5 settting what it recommends bottom is b5 (IMG:http://www.914world.com/bbs2/uploads_offsite/img.photobucket.com-9738-1387250279.1.jpg) |
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Replies
| Bartlett 914 |
Dec 17 2013, 09:23 AM
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#2
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Advanced Member Group: Members Posts: 2,218 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
I would agree that it appears to be bad gas. Are all the lines tight? A loose hose connection could be allowing atmosphere gas to enter the system. Another thought is something happened to the rectifier in your welder and you are putting out AC instead of DC
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Posts in this topic
ONTHEGRIND Weld porosity HELP... Dec 16 2013, 09:15 PM
gothspeed Looks terrible :( ..... Can you hear / feel the sh... Dec 16 2013, 09:18 PM ONTHEGRIND I can here gas.. Think it was a bad tank the gu... Dec 16 2013, 09:22 PM rick 918-S Check the regulator and the hose. What do you have... Dec 16 2013, 09:23 PM McMark :agree: with gas flow. What about polarity? Doub... Dec 16 2013, 09:23 PM ONTHEGRIND Blows out a lighter Dec 16 2013, 09:26 PM ONTHEGRIND Yup checked polarity and even replaced the spo... Dec 16 2013, 09:27 PM injunmort the row on the bottom definitely looks like flux c... Dec 16 2013, 09:27 PM stugray Could be too much flow.
Are you using a FLOW mete... Dec 16 2013, 09:28 PM ONTHEGRIND Just a pressure meter.. I tried high and low... Dec 16 2013, 09:32 PM gothspeed Sounds like it may be contaminated gas ...... mayb... Dec 16 2013, 09:36 PM 914_teener You are using a high pressure regulator instead of... Dec 16 2013, 09:42 PM ONTHEGRIND Its the reg that came with the unit.. It reads ... Dec 16 2013, 09:51 PM gothspeed I think 75% Argon/ 25% Co2 ...... is what I have u... Dec 16 2013, 10:00 PM 914_teener My bad sorry.....
tri mix is for stainless...
Ar... Dec 16 2013, 10:06 PM 914_teener That puddle is cold too..... Dec 16 2013, 10:07 PM rick 918-S Is your wire rusty? How old is the wire spool? It ... Dec 16 2013, 10:09 PM toolguy Bad ground connection. . . rusty wire. . not hot ... Dec 16 2013, 10:27 PM ONTHEGRIND Wire is new just unpackaged today tried differen... Dec 16 2013, 10:42 PM McMark Perhaps clean the main connections in the box. Dec 16 2013, 10:49 PM ONTHEGRIND I will also checked that.. Looked good when I chec... Dec 16 2013, 10:59 PM Dr Evil Great pointers here for us amateurs :popcorn: Dec 16 2013, 11:14 PM Jeff Hail Oh boy! So much for aiming for a stack of dime... Dec 17 2013, 01:24 AM bulitt correct liner for .025?
Using an extension cord? ... Dec 17 2013, 01:57 AM MMW Start at beginning. Did the welder work fine when... Dec 17 2013, 08:39 AM ONTHEGRIND The only thing the changes was the bottle since it... Dec 17 2013, 09:02 AM falcor75 Whats your power supply? I'm not familliar wit... Dec 17 2013, 09:03 AM toolguy For what it's worth, for mig / steel, I use st... Dec 17 2013, 10:20 AM MMW I would try a different bottle of gas to eliminate... Dec 17 2013, 12:35 PM Downunderman I see your flow meter is metric. 5 to 7 L per min... Dec 17 2013, 12:48 PM Jon H. I once bought some budget wire from Tractor Supply... Dec 17 2013, 04:45 PM 76-914 :agree: I had some flux core from HF that was :st... Dec 17 2013, 06:19 PM Travis Neff What kind of wire are you using? ERS70-6 would be... Dec 17 2013, 09:50 PM walterolin Ditto on the cheap flux core. I pay for the Lincol... Dec 17 2013, 10:22 PM toolguy
What kind of wire are you using? ERS70-6 would b... Dec 17 2013, 11:54 PM bulitt Forget to ask, are you welding outside in the bree... Dec 18 2013, 08:05 AM ONTHEGRIND It was bad gas...swapped bottle and look at the di... Dec 18 2013, 03:30 PM gothspeed Congrats!!! :beer2:
Now that is a ... Dec 18 2013, 03:35 PM Jeff Hail I admit when I am wrong. :D
Glad you got it sort... Dec 18 2013, 04:52 PM stugray Sounds like your gas guy turned the wrong knob whi... Dec 18 2013, 05:32 PM
bulitt Nice! Good thing you didn't go up like th... Dec 18 2013, 05:42 PM |
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