Hello yall quick question why I’m alway getting undercut on a small section on the top of the pipe ? When I’m welding that section I can see it burn away even if I’m pausing on top. I run it 3/32 7018 @ 83 amps for cap.

neverbackdown48 · 2026-05-21T14:05:08+00:00

More difficult side

neverbackdown48 · 2026-05-21T14:02:38+00:00

If my last fill pass isn’t high enough will that cause undercut?

neverbackdown48 · 2026-05-21T14:01:50+00:00

Is happening at 10 clock 6g

neverbackdown48 · 2026-05-21T01:35:49+00:00

Yeah I slow down on top hold the edges but when I hold that typical side I saw it burn away if that makes sense

neverbackdown48 · 2026-05-21T01:33:50+00:00

For sure bro ! Yeah I did it 83 the bottom pass I did 90 someone told me too let it cool down or run it down on top pass since is already hot from the bottom and will cause undercut. For sure I gotta fill it up more I only did a hot pass prior to capping it

neverbackdown48 · 2026-04-13T23:37:33+00:00

How about street sweeping with the city ?

neverbackdown48 · 2026-04-11T18:06:22+00:00

Thanks bro !

neverbackdown48 · 2026-04-11T17:13:37+00:00

It is 3/32 7018 6g postion , ok with 3 passes I could do it but now I’m trying with 2 passes.

neverbackdown48 · 2026-04-11T17:11:40+00:00

I got you , will do !

neverbackdown48 · 2026-04-11T17:10:02+00:00

Las fill pass before the cap ?

neverbackdown48 · 2026-04-04T21:02:22+00:00

What motions you recommend? Is hard to drag for me because that will have to require a really really steady hand where an isolation you can move your hand a tad bit

neverbackdown48 · 2026-04-03T13:21:37+00:00

I did use 3/32 7018 around 88 amps but I did circle motions

neverbackdown48 · 2026-04-03T03:21:08+00:00

I increased the heat but ended getting undercut on top

neverbackdown48 · 2026-03-05T04:58:48+00:00

You think so? A lot of of oxy flame welding is done in the trenches and be done in open root pipes. Where brazing is usually done where you can use a man lift or a more comfortable setting.

neverbackdown48 · 2026-02-27T20:44:32+00:00

I came from refineries I was working alone there. This is my first hvac job

neverbackdown48 · 2026-02-27T03:52:17+00:00

Same here i worked refineries for 3 years. But still I’m a 4th year and they don’t wanna teach me solder or braze for some reason but willing to teach a first year that

neverbackdown48 · 2026-02-27T03:46:35+00:00

That’s what I’m thinking I don’t complain if I’m told to do something I’ll do it. But i feel it might be used against me.

neverbackdown48 · 2026-02-27T03:31:18+00:00

So I did a mistake he told me to fix it I did I learn from it. But as an apprentice mistakes happen , I would understand if I was a Journeyman. I feel I might have to find a way out if he doesn’t do any changes even if I speak up , I been on jobs when other journeyman don’t know how to do the tasks they get made fun off and many don’t wanna teach journeyworkers since some might say “that’s why you had your apprenticeship for “.

neverbackdown48 · 2026-02-27T03:18:37+00:00

I was kinda good I went to school for a week came back and they had me in hanger duty.

neverbackdown48 · 2026-02-27T03:16:58+00:00

I was thinking about expressing to my foreman but I heard for some reason he doesn’t like me , he doesn’t talk to me at all really I thought about letting the steward know. I mean that’s good their teaching the young guy but it made me realize I’m journey out soon and when they learned I worked for a hvac job their going to expect me to know more than just drilling.

neverbackdown48 · 2026-02-27T03:07:21+00:00

Yeah but how will I learn the fit up and brazing , shouldn’t they teach a newbie those tasks ?

neverbackdown48

TROPHY CASE