Welding question

[Britt_Askew]

I have a piece of 1045 tgp 1" in diameter about 8" long and I want to weld a piece of 1 1/2" angle iron to it then another piece to stiffen it up.
Do I just go ahead and weld it or should I preheat something?

 

[weo]

If your welder is powerful enough, you should be fine just welding without preheating.

 

[Hubert S.]

I can't help with the welding, but I am curious what you are building from a pillow block, a shaft, some angle iron and what looks like a compressed air quick disconnect stuck in a pool noodle attached to the angle iron with a hose clamp?

 

[Britt_Askew]

If your welder is powerful enough, you should be fine just welding without preheating.

Thanks I tried google and didnt really get an answer.

I can't help with the welding, but I am curious what you are building from a pillow block, a shaft, some angle iron and what looks like a compressed air quick disconnect stuck in a pool noodle attached to the angle iron with a hose clamp?

A while back I tried an experiment for a dedicated setup to cut a nail nick but it had to much play so I tossed it aside and havnt thought about it until tonight I was moving some stuff in the shop and came across these bearings and had one of those light bulb moments on how to make it more rigid. The pool noodle is actually an air cut off tool. First attempt I just used a bolt as a pivot and it had to much play and that caused the corners of the nail nick to not be sharp , I think if I can make it rigid I can keep the corners sharp.... we will see soon if it works ? Also I just used a ceramic belt on my grinder to cut the bevel on the wheel.

I have tried a couple times to upload pictures and it says they are to big.

 

[Hubert S.]

Thanks I tried google and didnt really get an answer.


A while back I tried an experiment for a dedicated setup to cut a nail nick but it had to much play so I tossed it aside and havnt thought about it until tonight I was moving some stuff in the shop and came across these bearings and had one of those light bulb moments on how to make it more rigid. The pool noodle is actually an air cut off tool. First attempt I just used a bolt as a pivot and it had to much play and that caused the corners of the nail nick to not be sharp , I think if I can make it rigid I can keep the corners sharp.... we will see soon if it works ? Also I just used a carbide belt on my grinder to cut the bevel on the wheel.

That's neat. I'd like to know how it turns out. Good luck with it, I hope it works.

 

[Britt_Askew]

This is my first attempt and its not acceptable but I think it has potential if I can make things rigid

 

[Britt_Askew]

 

[weo]

Thanks I tried google and didnt really get an answer.

Now that we know what you are doing, all you need is for the parts to stick together, right? There's really no large stresses on the weld, correct? If so, then you could probably use the cheapest 110V flux core welder and it'll stick good enough for what you are doing. One of the main reasons for pre-heat is to make sure the weld puddle penetrates deep enough to provide maximum strength to the weld.