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can you weld coins together

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25K views 18 replies 15 participants last post by  dugndeep  
A
#1 ·
Just wondering..I was bored, with the tig machine, tried welding 2 pennies together in a lap joint...Very low amps.A small puddle formed on the bottom one and the top one just burned away
 
S
#4 ·
Most of the pennies out there are copper coated zinc. Zinc has a pretty low melting point. Scrape one with a knife hold it to a flap wheel/grinder, it'll be silvery under the copper.
 
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D
#5 ·
Yeah to have any luck you'd probably have to look for some older pennies. I forget exactly when they changed over to the zinc cored/copper coated ones, but I think it was in the mid70's at some point. Definately by the early 80's.
 
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B
#6 ·
Last year for a copper penny was 82, but that was also the first year the zinc one was introduced. Hehe I used to remember using a pair of scissors to cut them in half and mess with people having them try cutting the same year penny but the copper one....
 
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K
#17 ·
Shox Dr said:
Mate brought his van key around the other day, stealers wanted 275GBP to cut a new one:realmad::realmad:

So I brazed a Two pence (British Coin) to the shaft.
Click to expand...
Wow, that's a CAR KEY? Pretty darned simple key! Gimme a nail and a file and a hammer and I bet I could make one in about a minute!
 
Z
#11 ·
To a whole nother level...

:laugh::laugh::laugh::laugh:

You do realize you wasted 40 cents...

...zap!
 
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U
#15 ·
you didnt deface anything just made the new 40 cent piece dam dime wont buy much buy itself these days
 
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S
#16 ·
He gave up hope and now it's soo bad he's giving up change!:D

Sorry, I couldn't resist.
 
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