I have used gasless flux core to do 20 gauge floors up to 24 gauge quarter panels.
Welding 18 gauge sheet metal with flux core.
1 16 i will be welding on the low 1 setting with the wire speed set to 7.
The settings for flux core wire and non ferrous metals will be completely different.
To weld mild steel choose an american welding society classification wire such as er70s 6 which has a weld puddle that wets out nicely.
Metal thickness amperage settings.
Since the sheet metal for our container is a fairly thin gauge approx.
This guide will teach you how to weld steel with a flux core welder.
When welding mild steel a good rule of thumb is to set the amperage level at 1 amp for every 0 001 of thickness.
All butt joints no lap.
For sheet metal i use ine welding wire and it is just as good as their flux cored wire if you want you can grab one here.
It s recommended to use a 023 or 024 inch wire for most light gauge sheet metal work.
So if you are welding 12 gauge mild steel with a thickness of 0 100 you would set the machine at 100 amps.
Benefits of welding galvanized steel with flux core wire.
Although gas metal arc welding gmaw with a solid mild steel wire is popular easy to use and effective for many applications it does have limitations and drawbacks.
It is essential that you are already familiar with working with metal such as cutting it and are aware of the safety.
When the material is 18 gauge and thicker you may be able to use a 030 inch wire.
Im installing floor pans in my 86 cutlass and i have to add some metal to the pan.
As the metal you are welding increases in thickness you will want to increase the voltage and wire speed as you see fit.
For many welding applications like vertical up welding flat welding welding over galvanized or welding hard to weld steels a flux cored wire can do it better and faster.
I have the the 024 wire and c25 also it is higher quality but when just doing spots the flux core was acceptable if set up properly.
Single spot weld move etc.
Till panel welded in.
I have a fuller explanation on the uses of flux core wire and welding galvanized steel is just one of them.
It is the process of choice for welding galvanized steel.
How to weld steel with a flux cored welder.
While wire feed welding sheet metal go for short bursts of welding instead of a going on a long bead.
Short bursts or tacks will help.
You can weld outdoors which should solve the ventilation question.
So while i was at it i thought i show you some ways of spot welding and bu.