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3g mig welding test reignite hope steve bunyard aws d9.1 sheet metal welding code
October 21, 2024 Jody Collier

3g MIG Weld Test & Reignite HOPE

This video shows a Simple 3G MIG welding test on 11ga steel.

Simple but not necessarily easy at first.

This test is based on AWS D9.1 sheet metal welding code and is one of the tests used by Reignite HOPE to help their students build a better life.

ReIGNITE Hope is a non profit that offers vocational welder training free of charge to former gang members, ex-offenders and the homeless.

Download our Free Fast Track MIG Course 

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Comments

jody - October 21, 2024

this is a reply to Martin RUBENSTEIN.

I figured this would pull some questions and rightly so.
Wire speed does control amperage and since not all machines read out amperage, I am also left wondering why its listed on the procedure and how would anyone enforce compliance to a WPS.

There are some generic formulas to figure different wire speeds for different diameters to achieve a certain amperage …for example there is a factor of 1 for .045" wire, and a factor of 1.6 for .035" , and a factor of 2 for .030" diameter wire

as an example, if I needed 100 amps, I would multiply by 1.6 and set the wire speed to 160 using .035" wire to get 100 amps.

the 144 inches per minute of wire speed used for the last weld in the video that read out at 85 amps ….according to the 1.6 factor should have read out 90 amps. I guess that is Pretty close but not accurate enough to enforce on a WPS.

Inductance tests coming soon…

Martin RUBENSTEIN - October 21, 2024

Superb, as usual, but all the more so for introducing us to Reignitehope. What a wonderful organisation. It’s that old adage of give a man a fish and you feed him for a day, but give him a fishing rod and you feed him for life.

Superb arc shots together with the superb commentary on what you’re try to achieve, and how you then aim to modify the settings based on what you see that needs tweaking to get the results you want. That’s invaluable.

One question: you mentioned the current – 80 amps was within the spec – and you mentioned not every set has a readout. But the current is determined by the wire feed speed and there is no direct control of amps, is that correct? So if you are following the WPS correctly, the amps automatically should be within the specified range and you shouldn’t even need to check or know the amps; is that correct?

Looking forwards to the future video discussing inductance.

Thanks, Jody.

Martin

Eddie Gomez - October 21, 2024

Just wanted to say thank you your videos have been very informative

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