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1999 Connecticut missing clad found in cash drawer
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<p>[QUOTE="Conder101, post: 2263283, member: 66"]The cladding isn't the result of a "dip", they are three layers of metal that are bonded together by high pressure rolling. (In the early years of the clad coins the three ingots of metal were bonded by explosive welding. They were literally packed in explosives and the force of the detonation welded the ingots together. Then they were rolled.)</p><p><br /></p><p>Missing clad layers can be cause by the layers not bonding properly. If a planchet is cut from an area that is not securely bonded the outer layer may fall away. This could happen either before or after striking.</p><p><br /></p><p>Another way to have a missing layer can happen during the rolling process, The layers may not "stretch" at the same rate and one of the outer layers may "run out" befor ehte others at the ends of the strip. A planchet cut from this area would be missing a layer. To prevent this the ends of the strip are typically cut off after rolling.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 2263283, member: 66"]The cladding isn't the result of a "dip", they are three layers of metal that are bonded together by high pressure rolling. (In the early years of the clad coins the three ingots of metal were bonded by explosive welding. They were literally packed in explosives and the force of the detonation welded the ingots together. Then they were rolled.) Missing clad layers can be cause by the layers not bonding properly. If a planchet is cut from an area that is not securely bonded the outer layer may fall away. This could happen either before or after striking. Another way to have a missing layer can happen during the rolling process, The layers may not "stretch" at the same rate and one of the outer layers may "run out" befor ehte others at the ends of the strip. A planchet cut from this area would be missing a layer. To prevent this the ends of the strip are typically cut off after rolling.[/QUOTE]
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1999 Connecticut missing clad found in cash drawer
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