Mind the gap

[arc4arc]

As i am new to all this caper thought i would ask this.
How much gap/space if any should i have to join two pieces of metal

 

[madkayaker]

what material are you welding what thickness?

 

[arc4arc]

what material are you welding what thickness?

Hi well im not at the moment but i was asking in a general senseor should that be in a idiot sense

 

[madkayaker]

as far as i can tell small gap for thin stuff bit more for thicker stuff! some one who know what there doing will no doubt tell of some kind of way of working out!

 

[arc4arc]

I am making a steel door frame out of old bed angle iron using 2.5mm rods and 80amps so do i need my joints tight up or leave a gap

 

[madkayaker]

leave a bit of a gap or if grind a bit of an angle on the edges

 

[3Rs]

Prob no need for a gap then, But if you do find a gap lower your juice a wee bit.

In the General sense of a "gap"

ball point figure 2.5 of a gap. If your welding anything over 6MM plate then a bevel of 30 degree, (ie included angle of 60) with a 2.5 landing edge.
On the other hand if your welding below 6mm but not below 4MM then a 2.5 gap
Anything below 4mm have a gap of about 1.5 to about 2mm general speaking you want to be welding with a gap the same size as your rod.

 

[arc4arc]

Prob no need for a gap then, But if you do find a gap lower your juice a wee bit.

In the General sense of a "gap"

ball point figure 2.5 of a gap. If your welding anything over 6MM plate then a bevel of 30 degree, (ie included angle of 60) with a 2.5 landing edge.
On the other hand if your welding below 6mm but not below 4MM then a 2.5 gap
Anything below 4mm have a gap of about 1.5 to about 2mm general speaking you want to be welding with a gap the same size as your rod.

thanks for the info

 

[asmeix6g]

if its angle you shouldnt need a gap unless your doing a butt i.e 2 pieces of angle welded end to end. BUT for your application i would just put a chamfer on each end so you have a V to weld into.