welder rule of thumb

[cslimfu]

I got a newer welder(lincoln dc-250 with a Ln9 squirt feed with 035 wire and 92%argon 8% Co2) and it has a digital display. My old one didnt. I am having trouble getting a baseline for wire speed and voltage settings. It makes good welds but, I cant dail it in so it will stop splattering. Working on 1/4'' I have gone from 16.5 volts and 150-220 wire speed to 28 volts and 250 to 325 on the wire speed. When its way too slow you can see it in the weld as with too fast. Either way, it pops and splatters. Like I said, I have never had #'s to look at. The old one just had a knob and a crank. Turn the knob to about there and give it a few cranks up, thats how it was ran. All you had to do was get close. I have tried wire tension, driver wheel adjustment,and checked the liner.

[affende]

Originally Posted by cslimfu

I got a newer welder(lincoln dc-250 with a Ln9 squirt feed with 035 wire and 92%argon 8% Co2) and it has a digital display. My old one didnt. I am having trouble getting a baseline for wire speed and voltage settings. It makes good welds but, I cant dail it in so it will stop splattering. Working on 1/4'' I have gone from 16.5 volts and 150-220 wire speed to 28 volts and 250 to 325 on the wire speed. When its way too slow you can see it in the weld as with too fast. Either way, it pops and splatters. Like I said, I have never had #'s to look at. The old one just had a knob and a crank. Turn the knob to about there and give it a few cranks up, thats how it was ran. All you had to do was get close. I have tried wire tension, driver wheel adjustment,and checked the liner.

it seems you are setting your WFS incorrectly (from the numbers you posted) based on your voltage ....

for 1/4" ... try the 24V range with 350 IPM ....

here is a scan i made for you ... it give random starting points NOT RELATED TO ANY MATERIAL THICKNESS, so you will have to adjust for material thickness.

[affende]

Alos, C8 (the gas you are using) is suggested for Spray Transfer. is this what you are trying to achieve?

if you want Short Circuit transfer, change to C25 (its cheaper too).

and browing the Miller site ...

here are there suggested ranges for 035 wire on 1/4" material

C8 (spray transfer) ....24-25V and 400 - 420 IPM

C25 (Short Circuit Transfer) ..... 21-22V and 360-380 IPM


do yourself a favor and buy a MIG calculator from miller ... they are super expensive ($1.50 each )

http://www.millerwelds.com/resources/tools/#calculators

[cslimfu]

[QUOTE=affende;10604379]Alos, C8 (the gas you are using) is suggested for Spray Transfer. is this what you are trying to achieve?

if you want Short Circuit transfer, change to C25 (its cheaper too).

and browing the Miller site ...

here are there suggested ranges for 035 wire on 1/4" material

C8 (spray transfer) ....24-25V and 400 - 420 IPM

C25 (Short Circuit Transfer) ..... 21-22V and 360-380 IPM


I learned how to weld on the farm so, things like spray, squirt,short circuit are terms that were not explained to me. on the farm you just weld it. I imagine thats probably the problem. i guess its time to study.

[affende]

[QUOTE=cslimfu;10604442]

Originally Posted by affende

Alos, C8 (the gas you are using) is suggested for Spray Transfer. is this what you are trying to achieve?

if you want Short Circuit transfer, change to C25 (its cheaper too).

and browing the Miller site ...

here are there suggested ranges for 035 wire on 1/4" material

C8 (spray transfer) ....24-25V and 400 - 420 IPM

C25 (Short Circuit Transfer) ..... 21-22V and 360-380 IPM


I learned how to weld on the farm so, things like spray, squirt,short circuit are terms that were not explained to me. on the farm you just weld it. I imagine thats probably the problem. i guess its time to study.

lol ... some mroe scans for you to peruse ....

[cslimfu]

ok, next question. on the front of my welder there is adjustments for cv arc control. where do i put that for spray as well as short circut? they can be seen on the bigger pic. there are a bunch of adjustments on it cause its a multi process welder. i only have the mig and arc leads now. carbon air would be nice and i have no clue how to tig so, those will wait. i am almost out of gas, should i get 75%25% or 90%10%? I called industrial welding and they said they are almost the same cost. they said 75,25 will work even spray welding to around 3/8'' and i can short circut weld on thinner stuff too.

[Wyoming9]

Well if you are used to setting up your welder by sound and feel put some tape over the display and you will be good to go.

Someone said let me have a display so my lead welder can set up all the machines and the welds will be perfect.

Then we went to having a programs and welders needing software updates remote output viewing on the foremans computer with the option to change the settings and view the ipm/ in any given time period

[affende]

arc ocntrol is also called "pinch Effect" ... to my knowledge (and i could be completely wrong) it is used primarily for stick welding to better control the bead profile ...

but again, i could be completely wrong.

[cslimfu]

the grey settings are labled as CC for stick and tig, the red are CV for gmaw and fcaw. i am guessing its for constsnt current and constant voltage. i really wish i had a manual. i have searched lincoln's site with no luck. the funny thing all of this probably doesnt matter for the junk i am working on.

[Brad]

Um......squirt welding is also called submerged arc welding. How is this thing set up for .035 wire?? Was it an automated spray welder when you got it?? We have them at work but we only use them for sub arc.

[cslimfu]

on the wire feed control box it says LN9 squirt welder. there is a box that flips open and there is two sets of controls inside. wire speed and voltage. you can set them each differently and use the switch at the bottom to go between them. i can snap a few more pics if you want, better pics.

[Brad]

Yep. We just take the doors off. Ive never heard of a squirt welding with a trigger gun though

[cslimfu]

hers some big pics.

[sn0border88]

Whats the chance your running DC-? This might cause spatter no matter where your parameters are.

[cslimfu]

in the last and third from last you can see the switches to be + or -. they are both positive. i have traced the leads and they are right too.

[Brad]

Set the voltage and play with the wire sped while you are welding. That gas mix is set for spray so it probably wont short arc very well

[cslimfu]

I got a bottle of 75% 25% on it now( it just sorta came to me) Is it possible to short arc and spray with it? I know its not ideal but, will it work for my junk?

[Brad]

Originally Posted by cslimfu

I got a bottle of 75% 25% on it now( it just sorta came to me) Is it possible to short arc and spray with it? I know its not ideal but, will it work for my junk?

Somewhat, but it wont be pretty. Short arc is up to about 20 volts. Ive set it at about 26 and cranked the wire speed up while welding it and I dont remember what it ended up at but it was pretty high up there. Like, I said, pick a voltage and mess with the wire speed while welding. Take notes

[sn0border88]

Originally Posted by affende

arc ocntrol is also called "pinch Effect" ... to my knowledge (and i could be completely wrong) it is used primarily for stick welding to better control the bead profile ...

but again, i could be completely wrong.

I think you have 2 different settings mixed up. Pinch effect only applys to MIG welding as far as I know, it has to do with how the wire balls up on the end and breaks off, flying into the puddle. This is controlled by an inductance knob, which will either increase or decrease the resistance between the end of the wire and the work.

An increase in resistance (inductance) will cause a bigger ball to form, making the open arc time longer and increasing the heat in the weld. A lower inductance is exactly the opposite.

Arc control is usually for stick welders on a CC power source.

[cslimfu]

on post #6, in the second pic down. you dan see it says arc control with 3 different settings, all of wich are in red. then on post 13, third pic down, you can see mode and it shows for arc its the grey settings and mig is red. now you see why i am not too sure how to set this friggin thing.

[Goostoff]

Originally Posted by Brad

Um......squirt welding is also called submerged arc welding. How is this thing set up for .035 wire?? Was it an automated spray welder when you got it?? We have them at work but we only use them for sub arc.

MIG welders from Lincoln were known as "squirt welders" from way back in the first days of wire feed welders. The Lincoln Squirt Welders were a "brand" thing they used because they would "squirt" the filler rod out of the end of a gun. The term wasn't used as a type of welding until later on, but Lincoln continued to call wire feed welders "squirt welders"