Author Topic: GMAW Vertical Up  (Read 1184 times)

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Offline Stephenw

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GMAW Vertical Up
« on: June 12, 2011, 10:09:41 PM »
With a wire feed welder, vertical welds should generally start at the bottom and move upwards.

If you weld down, gravity will pull the puddle down with you. Travel speed must be fast to stay ahead of the puddle. There will also be very poor penetration.

I have been trying to master vertical up GMAW welding. I have tried an upside down V pattern and a triangle pattern but haven't been able to get either to work for me. I am using a sort of "climbing Z" pattern. I hold the gun on the left side of the joint and allow a good puddle to form. Then I make a quick move to the right and pause while another good puddle forms. Finally, I make a quick move up and left onto the top edge of the lower puddle and new steel. I again pause and allow a good puddle to form. Rinse and repeat.

Here is a picture of my latest practice piece...

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GMAW Vertical Up
« on: June 12, 2011, 10:09:41 PM »

Offline goodfellow

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Re: GMAW Vertical Up
« Reply #1 on: June 12, 2011, 10:31:53 PM »
Looks very good to me Steve. I don't think you have anything to worry about with that weld.

Offline Fins/413

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Re: GMAW Vertical Up
« Reply #2 on: June 13, 2011, 06:23:12 AM »
Looks so perfect at first glance I thought it was a piece of rebar laying there
Eric Corse
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Offline rusty

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Re: GMAW Vertical Up
« Reply #3 on: June 13, 2011, 09:37:22 AM »
Looks very nice.
Tool do job=Good tool

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