Gas Welding Joints & Beads

[erikmannie]

I do a lot of gas welding. I was putting some stuff in the Project of the Day thread, but I imagine that most people aren’t interested in gas welding. That being the case, I made a thread just for gas welding!

This is the *back side* side of a root pass on 1” plate wherein the top side of the root pass failed to achieve full penetration.

Of course, I never intended to weld the back side of the joint, but I had to do so because of the failed penetration.

I used a #5 tip for all this, but that is *way too small* for 1” plate. I don’t think that anybody could weld such thick plate with a #5 tip due to the amount of available BTUs for all of that steel.



Now I am setting this plate aside & switching to .125” wall sheet…

 

[benmychree]

I used to weld sched. 80 ammonia piping with an OX Acet torch, about 50 years ago, it was almost fun --- I have given up welding for the most part, my tremor makes it pretty much impossible.

 

[erikmannie]

I used to weld sched. 80 ammonia piping with an OX Acet torch, about 50 years ago, it was almost fun --- I have given up welding for the most part, my tremor makes it pretty much impossible.

I am really sorry about your tremor. It is definitely fun when you have an appropriate sized tip (“welding nozzle”).

The set up that I have now is working almost perfectly. Almost everything is pictured, except for the stool that I sit on.

 

[erikmannie]

I try to buy Victor equipment. I bought the no name 3/32” RG45 on eBay.

Today I have a #2 tip for the .125” sheet. Both acetylene and oxygen are set to 5 psi.

I very often watch oxyacetylene safety videos on YouTube, & I am very mindful about all the crucial safety tips.

 

[erikmannie]

The 300 Series (large) combination torch that I am using today is heavier than it needs to be. It is putting unnecessary strain on my neck & back. I should have grabbed the 100 Series (medium) torch.

If it is at all possible, I take the time to use a poly-strip disc to remove the mill scale, & then I use a lint free rag & acetone (or ***chlorine-free*** brake cleaner in an aerosol can) so that I can weld on bright shiny metal. I am unhappy if I am not welding on bright shiny metal.

 

[erikmannie]

Here are the first 4 tack welds executed in the horizontal position:

 

[erikmannie]

Examples of cold lap:





One of my many disgraceful welding habits is finishing up a weld by washing the weld. Hopefully with practice I can get those toes to tie in on the first pass.

Gas welding is fantastic practice for TIG!

 

[erikmannie]

One of the many reasons that I love gas welding is because it is retro. I love history, so why not step back into history & weld like they did?

 

[Nutfarmer]

Bright and shiny metal? We very seldom see that on the farm. One place that acetylene welding is still required is aircraft frames of chrome Molly tubing. Heavy plate is so much easier to do with stock arc.

 

[erikmannie]

Flat T-joint: