welding axle tubes

so ive seen some guys have their axle tubes welded to the center section. is it as simple as just welding them in or is there some fancy alignment pressing in thing that has to be done?
thanks for any input

Make sure nothings bent and burn 'em in, something I always do when I weld cast is heat it cherry red then weld it and just let it cool naturally don't douse it.

Dont worry about the tubes warping cause they already are... Every single 10bolt on the NBS trucks are. When I weld them usually I consentrate the heat on the center section. X2 on letting it cool slowly..

are the housing weldable cast steel? i thought they might be cast iron.

What type of welding process and filler metal?

im having someone do it for me. he literally has the prettiest welds ive ever seen so im sure he would use whatever is right, but i personally dont know what he would use

I always thought you have to weld with a high nickle content, and use a stick welder.

You can make a pretty weld with an arc welder but you have to be good.

just mig them im assuming?

the guy called me and wasnt 100% sure on how exactly to do it, so whats the real play by play of how you guys do this?

I've done it with arc (can't remember which rod) and mig, but since every one I've done had had a cast iron pumpkin, I heat it up cherry red, do my weld in one solid bead, then beat the bejesus out of the weld until its cooled enough that its lost it's color then just let it sit. That's how I was taught how to weld cast and it's worked every time, likely other ways to do it to