Hi.. 'Having a 'go'' since 2012... Potential Arc blunder..

[NinjaPower]

Hi all,

I'm Dale, joining up to learn a bit more about welding..

Iv got a Mig, Sealey Super Mig 190 I think.. It's pretty good for what I require of it, mainly small car repairs etc..

I'm more interested in Arc welding though. I have an Arc welder that was found in a old long abandoned land rover deep in woods, literally looks like its from the war.. Has 240v & 415v dial, only ever used it on 240, not cranked all the way up and it's blown holes in differential gears... So it's pretty powerful...lol

Iv recently welded what I thought was cast iron.. Think now that it's cast steel.
I used Ci-220 rods, the weld went down very well for my first attempt at welding anything cast, but I'm slightly worried that iv used the wrong rods...
I beat the crap out of it to test its structural integrity, but I'm not convinced my 'testing' was anywhere near close to real life conditions.

Here's a picture of the welding..

Any advise or tips would be greatly appreciated..

Thanks
Dale

 

[Wozzaaah]

The best person to advise on your choice of rods would be TechnicAl, I'm sure he'll be along to answer you but tell me you just welded that piece as an experiment, you're not actually going to be using it?

 

[Drains]

Ninja, yon weld is probably fine as regards structural integrity, although there's a bit of undercut which could weaken it in the long term (stress raiser). The weld material will, I imagine, be nickel based. The joint between the parent metal and the weld will probably be ok, the question is whether the weld material has the mechanical properties required for what that item has to do?

 

[NinjaPower]

They are front hubs for a car, these are the steering knuckles that I cut and shortened.
I made a deep V in it before welding it, did quite a few passes, cleaning it back up inbetween doing short beads.

 

[penfold]

Safety critical items are not a suitable subject for learning to weld on. Please tell me you will not use them on the road?

 

[wheresmejumper]

for extra lock?

 

[brightspark]

for extra lock?

quick steering we used to cut em down and weld them back together on the stock cars using general purpose stick rods its the only part of the steering that didnt snap after welding

 

[NinjaPower]

Yeah they are safety critical.. And yes, to increase the lock and quicken the steering for drifting.
I have used arc welder before to weld Diff's, never had to look any good, the welder jest melted the gears together so I knew if wasn't going to break.. Iv started to make another pair incase they do break, will use steel rods, any tips on which rod is best for cast steel??