MIG Welding Principles

Principles, procedures, and techniques. What happens at the MIG arc? Identifies weld equipment and setup before welding. For more information on Miller's line of MIG welders, visit http://bit.ly/nKuWGo

Category:

Howto & Style

Tags:

• MIG
• Welding
• Weld
• Welder
• Miller
• GMAW

[willystylee]

yeah u need to, the even looking at an arc on a computer screen will burn your eyes. Better hurry and go get one from the idiot store

[MilleniumYT1300]

that weld was beautiful it almost looked like tig!

[Koba4329]

@tar21gi alright, thx. will try that. was gettin conflicting stories here but that cleared it up. thx

[tar21gi]

@Koba4329 oh and also if you get porosity you might need to turn up the pressure on your shielding gas, btw I forgot to set my last response as a reply

[tar21gi]

When you pull/drag, where is your gun pointing? It's pointing back at the puddle/weld, which is where the argon/co2 gas is being sprayed at. So yes you can get adequate gas coverage either way, the problem is when your gun angle is too severe, but that can happen with either push or pull, and thats when you can get porosity. If you find yourself getting porosity often, you should straighten your angle a little bit, clean your gun and the metal you're welding on.

[Koba4329]

@tar21gi sorry perocity*

[Koba4329]

@tar21gi i was always told that when you pull the argon gas doesn't surround or get trapped around the weld which makes it less strong/less penetration and can cause verocity which isn't even a weld, just makes bubbles and just a completely hollow weld that isn't at all strong. is that true? or just bull?

[tar21gi]

@Koba4329 You can push or pull with a MIG welder. When you pull with MIG you get deeper penetration, however the weld profile isn't as nice. When you push you don't get quite as much penetration, but obviously you get a much better profile. So it all depends on the job, and the finish required, but either work.

[Koba4329]

k im getting conflicting stories here. im young and learning how to weld from a old pro. he tells me "push a wire, pull a rod" cause when you pull on a wire the gas doesn't stay long enough on the weld for it to seel properly so you get verosity. is that true or is this video true?

[lassehoei]

@willystylee we not have Idiot stores were i live but i got some from my friend

[terminator363]

That last weld was amazing.

[rottweilerdog10]

Nice looking weld at the end there