Metal working question...

[Martinjmpr]

Sort of follow up on my earlier thread, I was able to find some 20 MM ammo cans. The next thing I need to do, is to remove this reinforcing brace from one side of the can. Any thoughts on the best way to do that? I tried using a chisel and wrecking bar, but it seems like that?s going to take a long time. The brace is just tack welded on, and I know others have taken them off. Besides the wrecking bar and chisel, I also have access to an angle grinder.

I also have a propane torch. Would it make sense to heat this before I try and pry it off?


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[Irving]

Do you have an oscillating tool? Metal cutting blades can be had. Doesn't look like much space to get it in there though. I bet it'd work.

I'm interested to see what you're making.

[ray1970]

I'm interested to see what you're making.

Same.

Also, the propane torch is going to be useless for what you are trying to do.

[Erni]

Angle grind over spot welds until they are thin, then chisel.
If you have a drill press and an end mill you could also drill them out. If you dont care about divits then use a regular 118 degree drill.

[Irving]

Angle grind over spot welds until they are thin, then chisel.

Yeah this.

[Martinjmpr]

Angle grind over spot welds until they are thin, then chisel.
If you have a drill press and an end mill you could also drill them out. If you dont care about divits then use a regular 118 degree drill.

So an end mill is like a drill bit but it's squared off on the bottom vs pointed?

[def90]

So an end mill is like a drill bit but it's squared off on the bottom vs pointed?

Yes.

[buffalobo]

As said, grind welds thin then chisel, clean remaining weld with grinder.

[Irving]

As said, grind welds thin then chisel, clean remaining weld with grinder.

A flap disc will take off less material at a time than a grinder, and with smaller stuff to clean up would probably be better, IMO.

[Martinjmpr]

A flap disc will take off less material at a time than a grinder, and with smaller stuff to clean up would probably be better, IMO.

So is a flap disc something I put on the angle grinder or does it go on another kind of tool?