starting again ...

[ross1993]

Decided my welds have got a bit sloppy . im going to buy some plate again and practice butt weld and fillets in flat horizontal and vertical.going to be doing this with mig and arc. question is what thickness metal should i practice on ? my welder is r-tech mig 180 thinking maybe 5mm ?

 

[pedrobedro]

3mm will be thick enough for you, 5mm is the top end of what your mig is capable of.

 

[ross1993]

ill get some 3mm then . was only thinking 5mm for arc welding

 

[ross1993]

jumping on the back of my original post , tried my mig today , when doing horizontal fillets , the toes of the weld arent tying in properly ? not sure what to do to correct this ? lower wire speed and lower welding speed ?
any help is greatly appreciated

 

[doubleboost]

Could You post some pictures of the welds
The 180 should burn through 3 mill plate no problem

 

[ross1993]

havent got any actual pictures of my weld but ive found something on the internet.
as for the 3mm yeah it goes through that no problem.

 

[doubleboost]

That weld needs way more power or less wire

 

[ross1993]

ill grind mine out tomorrow turn the juice up put another one down , see if its any better.

 

[Brad93]

Grinding that out is going to be a waste of time get yourself some more material and turn your welder up.

 

[ross1993]

I'll get some more material soon. Think I should get all 3mm or get some 5mm too. thinking a few meters of 50x3 flat bar and 50x5

 

[Brad93]

Grind the mill scale off as well.