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   rec.crafts.metalworking      Metal working and metallurgy      215,319 messages   

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   Message 213,927 of 215,319   
   Clare Snyder to All   
   Re: Struck Coin Blanks ???   
   27 Nov 24 18:17:57   
   
   From: clare@snyder.on.ca   
      
   On Wed, 27 Nov 2024 15:55:48 -0700, Bob La Londe    
   wrote:   
      
   >On 11/27/2024 3:29 PM, Joe Gwinn wrote:   
   >> On Wed, 27 Nov 2024 13:57:58 -0700, Bob La Londe    
   >> wrote:   
   >>   
   >>> Every since watching a woman dressed in pirate garb at a renaissance   
   >>> fair (or faire if you prefer) place a blank in a set of dies and drop a   
   >>> heavy weight on it to strike a souvenir coin I have had in the back of   
   >>> my mind the idea to strike my own coins.  I can certainly make the dies.   
   >>>   4140 is relatively easy to machine if you know how, and it will harden   
   >>> "hard enough" for a low production number of from a few hundred to a   
   >>> couple thousand coins.  I also keep a bit of O1 and W1 on hand for those   
   >>> cutting tools I can't hand grind from HSS or carbide.  I even have a   
   >>> propane forge in the back along with a toaster oven for tempering   
   >>> (although it gets used more for powder coating).   
   >>>   
   >>> I started writing with two questions in mind.   
   >>>   
   >>> Where to buy/make coin blanks at the best price?  Not the 10-20 on Ebay   
   >>> or Amazon, but a couple hundred to a couple thousand at a more   
   >>> reasonable bulk price.   
   >>   
   >> Many country fair coins were made of soft aluminum.   
   >>   
   >> Maybe the brass sold for stamped dataplates or tags?   
   >>   
   >> .   
   >>   
   >   
   >That's not a bad start.  Unfortunately they also sell end product which   
   >usually means they don't sell for real wholesale pricing.  Its still a   
   >good idea.   
   >   
   >   
   >> Probably the alloy used for copper pennys can be got.   
   >   
   >Getting actual penny copper is not a horrible idea.  I could certainly   
   >do some experiments by going through my change bowl and sorting out the   
   >older real copper pennies to be restamped.  I suppose the zinc pennies   
   >stamp okay, but they may not re-stamp okay.  My end goal is mostly for a   
   >coin "about" the diameter and thickness of a regular classic silver   
   >dollar.   
   >   
   >Casting copper from old pennies, motors, etc could also be an option,   
   >but that would make it a whole different class of project.  A time and   
   >money thing, and I don't mean the pennies.  Also, my little propane   
   >forge probably isn't up to melting enough copper to be worth while.  Its   
   >fine for one off heat treating projects, but probably not for casting   
   >any quantity.   
   >   
   >   
   >> Hobby stores may have coin-making supplies.   
   >   
   >Hmmmmm... I suppose its worth a look to see if Michael's (are they still   
   >in business) or Hobby Lobby has anything.  At the very least I could   
   >read the packaging if they do to see if that generates an other leads.   
   >   
   >> Early Chinese coins were lost-wax cast from bronze.   
   >   
   >I don't think casting is really the way I want to go.   
   >   
   >>   
   >> Joe   
   >   
   >   
   >--   
   >Bob La Londe   
   >CNC Molds N Stuff   
    Do your own "fineblanking" - stamp your blanks from aluminum, copper,   
   or brass flat stock on a punch press.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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