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Weldability of a Soda pop Can


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Has anyone ever welded a Soda Pop can together?? If so, I want to see this and would like to know the procedure in which you had accomplished this. I am told that this can not be done, but on the other hand, I have been told that I CAN be done but have never seen this accomplished let alone seen the process myself. But I not only want confirmation, but PROOF and PROCEDURE.

-Hillbilly

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  • 2 weeks later...

I was working at one of our customers shops about two years ago. Pretty small shop, specialized in stainless and aluminum sheet metal fab. All high end cosmetic work. That was the weld test for that end of their shop. You would show up, they would hand you pop can cut in half and point you in the direction of one of their TIG welders and wait.
As a result, their weld shop was one of the best. I saw a bar top they made for a pub made of copper. Two 90 degree turns in it, absolutely perfect.

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A friend that worked in my brother's shop for a while is one of the top micro welders in the country, he specializes in repairing plastic injection molds by welding and machining what are sometimes multi-million dollar molds. He regularly tig welds under a 200 power microscope. I have watched him weld pop cans together and lay a bead along the edge of a razor blade. I have watched him heat treat(aneal) a 3000 lb mold made of h13 to prepare it for welding ,do a small weld, machine and re-heat treat. The weld took less than 15min to do, machining another 2 hrs with set up. But to heat treat the mold took a week bring it up to temp and cooling so the tool did not warp. For a guy like me who can barely stick two pieces of 1/4 inch stock together with the buz box it was a humbling experience.

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Sheesh.. All I know is that they melt nicely with my #0 OA tip. AHve not tried welding yet. I don't see how you can get a small and cold enough flame with OA.

The bottom of the can will be the thickest part.. no clue as to how much thicker.

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A friend that worked in my brother's shop for a while is one of the top micro welders in the country, he specializes in repairing plastic injection molds by welding and machining what are sometimes multi-million dollar molds. He regularly tig welds under a 200 power microscope. I have watched him weld pop cans together and lay a bead along the edge of a razor blade. I have watched him heat treat(aneal) a 3000 lb mold made of h13 to prepare it for welding ,do a small weld, machine and re-heat treat. The weld took less than 15min to do, machining another 2 hrs with set up. But to heat treat the mold took a week bring it up to temp and cooling so the tool did not warp. For a guy like me who can barely stick two pieces of 1/4 inch stock together with the buz box it was a humbling experience.


I used to work with a guy that specialised in microwelding. its absolutly amazing to see someone weld under a microscope. even more amazing is when its a 500lb mold thats preheated to about 600 degrees.

He later went off and started his own shop. some of his work can be seen here (New England Tool & Microweld
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The picture of the dew cans welded bottom to bottom... That's a completely different beast than cutting one in half then welding it together. I tig'd aluminum for a few years proffesionally, but all my Al was between .100 and .250 thick. I'm sure there's guys out there that can do it, and I'd love to watch them do it. Never heard of "Micro-welding" as a specialty. That sounds pretty cool to me.

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Welding two cans together like that isn't too hard. Cutting a can in half and welding it back together is a whole different story. First you have to cut the can in half and get it clean inside and out without deforming it. A perfect fitup is mandatory for welding thin materials like that.

My machine will not drop low enough in amperage, maybe 2-4 amps. If I get a chance at work monday I'll see what I can do. :) (probably make a mess)

BTW, it definately CAN be done. I've seen aluminum foil welded together before.

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After seeing all of the pics of the welds that everyone had put up on here, I tried to weld a pop can the other day at school. Well, I did it!! I not only welded a bead on the bottom edge, I welded a bead on the side material as well. I blew a couple of small holes in it, but this is the first ever piece of aluminum that I have ever welded before. No practice, just I just went for it. :cool: Not bad for a first aluminum weld, if I do say so myself. :P
Here's a couple of pics:

welded_pop_can-2.jpg welded_pop_can-1.jpg



What does everyone think? The next time I get to TIG weld, I'm going to weld two can together and, if successful, I'm going to try aluminum foil. When i finish, I'll post pics.

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I only get to weld at school. I am going to a vocational school to learn welding as a trade. That is my first ALUMINUM weld. I have MANY others. I do plan on practicing much more in the future on pop cans and hopefully aluminum foil. But so far, the class in general is still doing steel with MIG,stick,TIG. With Stick and MIG, we have done every position for plate in fillet and lap joints with E6010 and E7018. TIG, we are still on horizontal lap and fillet. But moving forward nonetheless!! :)

P.S.
If people here want to see my welds, I can put pictures up. Just let me know. Thanks for the inspiration to do more.

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Ok Hillbilly smith now that you have welded on the pop can without cheating (cheating is welding 2 together at the ends). How about welding 2 razor blades together by the sharp edge. I am going to admit that I've never tried it myself. I also don't have the equipment to weld aluminum.
Now that I've thrown out a new challenge good work! I've gotta go get some razor blades.

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