Hate to nit-pick, but it's an unstuck planchet, not a blank planchet. (and it might be a copper-plated over zinc planchet, but it's not clad) Blanks are those metal discs just punched out of the planchet strip; no upset rim. Planchets are those same metal discs that have gone thru the upsetting mill, which gives it the upset Rim (for striking and stacking purposes). When I started collecting errors 60 years ago, we called them 'blank planchets' for years - till the proper nomenclature took hold - since the '70's, in popular use, they are either Type 1 (no upset rim) Blanks, or Type 2 (w/upset rims) Planchets. Hope this helps.
This planchet weighs 2.5 grams, making it 97.5% zinc and 2.5% copper. Between 1935-40, the term "clad" was accepted as one metal placed atop another for the purpose of protection, so I think clad works? So if "blank planchet" worked for hundreds of years before 1970? Me, I think we should go back to the rotary telephone as no one ever crashed their car dialing a rotary phone.
Current Lincoln Cents are plated. An electric current is used to deposit copper from a solution onto the zinc blanks. Dimes through dollars are clad. 3 metal strips are joined together, rolled to the proper thickness, and blanks are punched from that strip. Just my pedantic addition to the Coin Talk body of knowledge
I knew someone would come along and explain it much better than I would! And that's why I gave you 'Best answer'
I prefer the rim, even though it's worth less, because then you can tell it was supposed to be a coin and not just some slug. I also have 1 copper planchet. (Type 2) People have called the zinc cents "clad" when they took the copper out. But as has been pointed out, "plated" coins are not considered clad.
My definition of the clad process makes no reference as to how the two metals are applied to one another, I suggest a "eutectic bond" of the materials. I got to use "eutectic". Also, rotary phones, while not easy, can be butt dialed.
