Welding

Conorh123 · 24-05-2015 8:30pm #1

Can anyone tell me if these welds are any good ? If not how do I improve them ?

Sam Kade · 24-05-2015 8:31pm

Where are they?

Conorh123 · 24-05-2015 8:59pm

Conorh123 wrote: »

Can anyone tell me if these welds are any good ? If not how do I improve them ?

There

arthur daly · 25-05-2015 12:15am

Yours or your sons

arthur daly · 25-05-2015 12:15am

Yours or your sons

Conorh123 · 25-05-2015 7:41am

arthur daly wrote: »

Yours or your sons

Sons - he is 15

Sam Kade · 25-05-2015 9:36am

Conorh123 wrote: »

There

They are a bit on the blobby side, he's getting there though just plenty more practice.

CJhaughey · 25-05-2015 2:29pm

He is getting better, but still not great on the fillet weld.
Make multiple passes on the flat plate and keep repeating.
Also have a look at this tutorial.
http://www.mig-welding.co.uk/arc-tutorial.htm

SuperTortoise · 28-05-2015 1:08am

. Double post

SuperTortoise · 28-05-2015 1:13am

practice running beads on the flat and pay special attention to arc length it's massively important in running consistently good welds,

Conorh123 · 29-05-2015 10:23pm

SuperTortoise wrote: »

practice running beads on the flat and pay special attention to arc length it's massively important in running consistently good welds,

Is this one good

antiskeptic · 30-05-2015 8:48pm

Conorh123 wrote: »

Is this one good

It's not possible to tell from this photo. Welding aims to connect two pieces which necessarily involves penetration into both pieces of the work and sufficient amount of material in the weld capping the join.

If you cut this piece and pictured a cross section you could tell something about the weld in that section.

dpofloinn · 30-05-2015 8:50pm

Getting better weld is a little flat and still has some slag inclusion

Conorh123 · 01-06-2015 10:52am

antiskeptic wrote: »

It's not possible to tell from this photo. Welding aims to connect two pieces which necessarily involves penetration into both pieces of the work and sufficient amount of material in the weld capping the join.

If you cut this piece and pictured a cross section you could tell something about the weld in that section.

I'll attach a picture of the cross section later

Conorh123 · 01-06-2015 2:24pm

Conorh123 wrote: »

I'll attach a picture of the cross section later

That's the section of weld in half

SuperTortoise · 01-06-2015 6:15pm

It's getting there, you can usually tell how well it's penetrated by looking at the toes(where the bead meets parent metal) without cutting it, you are looking for it to blend nicely with parent metal without leaving undercut(goughing of the toes) or without leaving a lack of penetration( it'll look like it's sitting on top of the parent metal instead of blending in with it)

Having said that it's no harm to cut the odd one as previous poster said, that will confirm how sound the weld is.

Going back to my previous advice, great practice to get a piece of scrap plate clean it well and just fill the whole plate with weld(overlay is the correct term), so run the first bead along one edge, then run the next one paralell to it with a 50% overlap on the previous bead and continue stacking the beads until you fill the whole plate, from there continue practice as you have done on various joints, it's improving keep at it!

Conorh123 · 01-06-2015 7:16pm

SuperTortoise wrote: »

It's getting there, you can usually tell how well it's penetrated by looking at the toes(where the bead meets parent metal) without cutting it, you are looking for it to blend nicely with parent metal without leaving undercut(goughing of the toes) or without leaving a lack of penetration( it'll look like it's sitting on top of the parent metal instead of blending in with it)

Having said that it's no harm to cut the odd one as previous poster said, that will confirm how sound the weld is.

Going back to my previous advice, great practice to get a piece of scrap plate clean it well and just fill the whole plate with weld(overlay is the correct term), so run the first bead along one edge, then run the next one paralell to it with a 50% overlap on the previous bead and continue stacking the beads until you fill the whole plate, from there continue practice as you have done on various joints, it's improving keep at it!

I'll tell him to do that thanks

Welding

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