How to removed welded/attached old receiver?

[nightwolf0215]

Hi everyone, I am trying to remove the part of the cut receiver on the PE-57 kit that I have. It seems that it was welded into place with the front and rear trunion. I have no idea how to get it out clean. I have thought of grinding and dremeling my way through, but thats just messy and not very good for new receiver installment.



If you can see the part of the front trunion has a little tab that extends out. That is the old receiver that needs to be removed.

[IW378]

if it is spot welded. then go get yourself a spot weld cutter from any auto body supply store. you just centerpunch the spot weld, put the pin of the spot weld cutter in the punch mark and drill slow. this will cut a circle around the spot weld and you will be able to separate the pieces just grind off the plug after separation

[nightwolf0215]

I do see a spot of welding near the bottom of the trunion. Is there a way to tell if its spot weld or not? It seems the receiver is almost like 1 piece with the trunions.

Here is the close up pic

[kcstott]

Yeah thats a spot weld but I don't think a spot weld cutter is going to work. You wouldn't happen to know someone with a mill near by would you??

I'd set it up in a mill (from what I can see) and try to mill off the piece from the inside.

[nightwolf0215]

How come a spot weld cutter would no work here? is it because there are 3 spot welds that are too close to the important slot?

[kcstott]

The part that you want to save is the piece we are looking at. you would have to get at it from the back side. If that is possible sure a spot weld cutter would work. But I would not want to cut through the good part to remove the bad one.

Although that could be fixed later with a welder and a delicate touch.

[nightwolf0215]

Oh I see. I received advice from someone who built this in the past also to mill it out. Milling it out it is!