Pulse VS Short circuit MIG break test.

[yomax4]

Very good stuff..I am thrilled to see some Pulse talk on here. Although I have trained with it a lot over the years, ( twin pulse more) I have been enjoying a an RE: to Stick Welding. Never knew it could be so cool.. After all. Anyone can lay a perfect bead with Twin Pulse. Not so with Stick. Guess I like it all..

 

[mjncad]

I definitely like the looks of the pulsed better, and it appears to have penetrated better too.

 

[LD1]

Wow, if you consider them old school, after my statement that the younger crowd liked that fish scale look, in your eyes I'm really old school!:laughing:

Here that Tig thread.

http://www.tractorbynet.com/forums/welding/212234-tig-break-test.html

The guys I am refering to are 61 and 55:confused2: So for me, they are old school.

 

[Shield Arc]

The guys I am refering to are 61 and 55:confused2: So for me, they are old school.

Na, them boys are spring chickens!:laughing:

 

[ptexer]

What gas mixture are you using when mig pulsing. I called lincoln and they told me I had to use 90/10 argon co2.

 

[yomax4]

90/10 at least but many use 92/8 and 95/5. Stainless often is 98/2 or a little Helium in there. 90/10 will work fine. Actually, 75/25 will work in a non cometic application. You may get a small amount of spatter if gun angle is not perfect. Fun Stuff...Try it out if you ever get the chance.

 

[LD1]

Those welds were with 75/25.

All we have at work is the 75/25 and the 100% argon.

The miller chart does say that you can adjust the arc control setting to adjust for different gas mixes.

 

[ptexer]

Has anyone used a gas mixer. They are expensive, but would cut down on bottles and let you vary percentages to fine tune what you are doing.

 

[yomax4]

I have a mixer. It works pretty good. It is the Smith version. Needs to be calibrated every other year or so. I find these used for around $150.00. I guess you can save some money if you need several mixes. I use Argon, 75/25, 92/8 and 98/2 so makes sense to have a mixer. Most people wont need it. Thermal Arc is building a new 252 amp Mig ,Tig, Stick combo in New Hampshire that will run spatter free on CO2. Has a Wire Sharpening Circuit, Inductance Control and more on Mig, Hot Start and Arc Force on Stick, Slope and Trigger lock for TIG. Weighs 60#. Based off of the Thermal Dynamics Plasma Inverter technology I am told. This should be a big deal. They say it will be out in November. Cool looking too. I plan to stop and see it at Fab - Tech.

 

[ptexer]

yomax4 Where are you able to find them used?