Miller Electric

Welding Discussion Forums

Home » Resources » Communities » Welding Discussion Forums
 
Miller Welding Discussion Forums - Powered by vBulletin

Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 26
  1. #11
    Join Date
    Mar 2007
    Location
    Deltaville, VA
    Posts
    2,239

    Default

    SignWave,

    Try adjusting the Run-in speed for the 30A spoolgun. The procedure is described on page 20 of your owner's manual. Think this may go a good ways towards reducing your splatter.

    The run-in is factory preset for the Mig gun at 100% of wire speed. For the 30A the run-in is factory preset at 50%. These settings are individually setable at anywhere between 25-150% of wirespeed.

    This only applies to the MM251 not the MM250. The MM250, I don't believe, has a provision for setting run-in. Hard to tell from your post. In the post you refer to the MM250 and in your signature line you show a MM251 (different welders).

    What you're doing by pulling the trigger on the 30A is that you're telling the power supply that the spoolgun is being used. The normal default setting (wire speed display) is for the Mig gun. As you vary the wire speed, from the 30A, you should see the wirespeed display change on the power source.

    Hope this helps.
    Last edited by SundownIII; 12-04-2007 at 10:27 AM.

  2. #12
    Join Date
    Aug 2007
    Location
    Vancouver BC Canada
    Posts
    605

    Default

    Thanks Sundown,
    I have a 251. Sorry for the mix up. Ive got way too much on my mind right now and simple things are becoming hard to remember....

    I'll go read page 20 and see where i get.

    Thanks for dropping in.

    Rich.
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

  3. #13
    Join Date
    Aug 2007
    Location
    arkansas
    Posts
    781

    Default

    richard, i use about 22 -24.5 volts depending on position for .125 aluminum and the wire speed around 600 to 630 ipm. 1/4 and up i use 25 to 28 volts and 700 to 800 ipm. argon set to 27 cfh at the nozzle NOT at the regulator and put your running shoes on. the spatter will virtually begone, but the smoke is horrid. dont weave or use any torch manipulation. just straight line push gun, like a stringer bead pass. i think your gun angle is too great, your stick out too much and your voltage not high enough. i use 5 to 7 degree angle from 90 (just a very slight lead into the direction of weld). try that and get back to me.


    on a side note, i cant get the o.l.f. to you. 3-m no longer makes it and the plant is trying to hang on to every little piece of scrap.
    welder_one

    nothing fancy, just a few hot glue guns for metal
    www.sicfabrications.com

  4. #14
    Join Date
    Aug 2007
    Location
    Vancouver BC Canada
    Posts
    605

    Default

    Thanks W1,
    Before i try your suggestions on the real work, Im going to have to do some coupons first to make sure I get it down pat. I only have one chance to get it right.
    Do i need to worry about warpage with this kind of heat and speed? I'll have to pull out the supergloves for sure... I will be running a continuous bead about 16 inches long and i will be welding a flat or an angle to sheet so that i can square up the bow cabinet sides. This will then be where i mount the doors to button up the bow cab. Im just wondering if I should back stitch...
    have a look at the pic ive added. ITs a rough idea of what im going to be doing. the red is 3/16" flat bar or perhaps some fitted angle ( i like this idea better) The bulwarks is 1/8" thick and has been braked(broken??) around the perimeter of the opening.


    Dont worry about the OLF. No worries.
    Attached Images Attached Images
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

  5. #15
    Join Date
    Aug 2007
    Location
    arkansas
    Posts
    781

    Default

    if you tack it together very well and in several places, you wont have to worry about warpage much. i am not sure if it is a good idea to make a long continous weld, maybe weld it in stitches opposing sides and randomly until it is welded solid. this will help with blow outs. if you are unsure about the water tightness, clean the welds with ss brush and wash them in with the tig machine. or turn the wire speed up a little more and run back over the weldment in its entirety.

    the super gloves are a great idea. i use the miller hd mig glove on my left hand with a steiner backhand pad to boot. i use a tig glove for my trigger hand though. send me pics of your practice welds and i will help you critique them. best of luck.
    welder_one

    nothing fancy, just a few hot glue guns for metal
    www.sicfabrications.com

  6. #16
    Join Date
    Aug 2007
    Location
    Vancouver BC Canada
    Posts
    605

    Default

    Hi W1,
    the attached pics were from about teh time we had our conversation on the side with regards to your comments on "flat welds" and how to do them.
    I dont thing i used the setting you suggested on these because i hadnt practiced yet but anyways, have alook. these two are both 0.125 to 0.125 5300 series AL ( i think...)
    Attached Images Attached Images
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

  7. #17
    Join Date
    Aug 2007
    Location
    arkansas
    Posts
    781

    Default

    a little hard to tell, but mostly it looks like your'e not running hot enough. turn it up and burn it in. i welded aluminum for a while, and thought i was doing pretty good, an old timer in the shop (different place and a few years ago) came over and began turning the knobs on the machine to the point that i thought he was going to twist them off turning the machine up. he said now weld and move quickly. he wasnt playing, now i run even hotter than he suggested and way outside the wire manufacturers parameters that i use. the weld will get a slight v shaped ripple nothing round about it when its right. and you'll see the tell-tale grey streaking on both sides of the weld where the arc is burning the oxides just like the tig does.
    Last edited by welder_one; 12-05-2007 at 09:02 PM.
    welder_one

    nothing fancy, just a few hot glue guns for metal
    www.sicfabrications.com

  8. #18
    Join Date
    Aug 2007
    Location
    Vancouver BC Canada
    Posts
    605

    Default

    Okay W1,
    I'll try that. Most of the weldments on this boat do have that "v" shape to them and as i look at them all, i wonder how the welder managed to get that shape. I guess he knows the secret.
    Darcy Kellahan is the fellows name and he's been welding alumiunm for a long time. Mostly boats but he has since switched to makig truck racks. Less headache bettr profit margin he says...

    I'll be back with some more pics. I know that the last ones I posted sucked, but i had no real choice at the time. The camera batteries died and it was getting dim out there.

    I take it that this would now be spray transfer and it should hiss more than it crackles?

    ThanksW1.
    Rich
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

  9. #19
    Join Date
    Feb 2007
    Location
    Olive Branch Ms
    Posts
    129

    Default

    Signwave,
    I have been trying to figure out the same type of problem you are. I turned my current way up and it seemed to switch to a spray transfer like you said and I had pretty good results. It's still fairly smooty but the connections were strong. I have been setting my regulator at a flow rate of 25 for 1/4" plate but I am going to experiment with a lower flow rate soon. Adam
    Webb's Welding and Repair LLC
    MM210 w/a 3035 spoolgun
    Syncrowave 250
    Spectrum 625
    Trialbazer 302 w/HF
    http://webbsweldingandrepair.com/home

  10. #20
    Join Date
    Aug 2007
    Location
    Vancouver BC Canada
    Posts
    605

    Default

    Quote Originally Posted by Jetmekdc-10 View Post
    Signwave,
    I have been trying to figure out the same type of problem you are. I turned my current way up and it seemed to switch to a spray transfer like you said and I had pretty good results. It's still fairly smooty but the connections were strong. I have been setting my regulator at a flow rate of 25 for 1/4" plate but I am going to experiment with a lower flow rate soon. Adam
    Post a pic of your welds when you try this out. I'm curious and Im sure that W1, will be able to help us both out with suggestions or comments.

    I'll look forward to your posts Adam.

    Rich.

    hehehehehe... I'll race ya!
    Will it weld? I loooove electricity!

    Miller 251/30A spool
    Syncro200
    Spectrum 625
    O/A
    Precix 5x10 CNC Router12"Z
    Standard modern lathe
    Cheap Chinese mill that does the trick... sort of...
    horizontal 7x12 bandsaw
    Roland XC540 PRO III
    54" laminator
    hammer and screwdriver (most used)
    little dog
    pooper scooper (2nd most used...)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/footer.inc.php on line 62

Welding Projects

Special Offers: See the latest Miller deals and promotions.

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/footer.inc.php on line 137