Ally sump welding quote......

[AshG]

Originally Posted by baz-r

maybe if its preheated my zetec sump i welded at 140-180a 20% cleaning but my tig is fixed freq @ 75Hz (i think)

crumbs thats a lot of current for that. what welder are you using its not a Chinese one is it?

on the sump for my saab engine it was 4mm thick cast and it welded up lovely using around 90-100 amps, can never know exactly as i just give it more pedal if i need it. cast ali is always a strange thing to weld some times it melts like butter and other times it is a pain to get heat into, just depends on the composition.

[RAYLEE29]

Hi, do you actually need to weld the plugs in? you could make the plugs with o ring grooves and a tight clearance fit and use a bolt and washer to hold in or make them top hatted and bolt in.
no welding also means no distortion no grit blasting no chemical cleaning etc
just a plain simple engineering solution.
Ray

[baz-r]

thats the settings for pritty much any make or model of tig i would be using ash as long as its square wave form even more for sine wave old tigs.
dont want to be there all day welding the thing or trying to make it hot

but yes its defo not made on this side of the world but not even the big names are made anywhere near europe thease days (trust me i have been inside them)
unless your spending real big money or realy know what your buying (ewm would be my choice btw)
i just need somthing that works and does my hobby bits not worth spending more than my build and i dont have 3ph so cheap s/h ac/dc tigs are like flying pigs
god i see sets selling more s/h on ebad than i sold new a couple years ago!

[AshG]

mine is a cemont ac/dc inverter made in italy. but as you said lovely bit of kit the size of a sewing machine with options galore but new they cost more than the car lol.

[Eternal]

Wow thanks for all the advice guys! Started clearing space in the garage and will try and do some test bits on offcuts and see how that goes. If i turn out to be totaly crap will get it sent off to mikemph! Yet again thanks a load guys its really great to have the community support.

[baz-r]

Originally Posted by AshG

mine is a cemont ac/dc inverter made in italy. but as you said lovely bit of kit the size of a sewing machine with options galore but new they cost more than the car lol.

150a one? cemont are simmular as saf/oerlikon made in france units citotig i think it was called
and yes i do think thay cost more than some builds ash
one bit of advise keep the matalic dust well away when it gets in all tigs with hf seem to go wrong for some reason
whip off the cover and blow it out every once in a while (make sure its been off for a while big caps inside and thay bite)