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Blakesley Effect

Started by Architecht,

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Architecht

Architecht

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Posted

Blatantly stolen from a post by TomB a member here, but I didn't want it to fade away as it seemed like an interesting defintion:

 

 

 

The Blakesley Effect is a term used to describe inefficient metal flow, opposite a clip on a coin, when the rim is formed and the subsequent imperfect or incomplete rim formed at that position after striking. -- TomB
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WoodenJefferson

WoodenJefferson

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Posted

I might add to clarify this effect. When TomB quoted "opposite a clip on a coin" it means the effect will be more or less 180 degrees around the rim, from the clipped area.

 

It still means the same thing, but being "180 degrees out" paints a picture, which I sometimes need.

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