Lamination vs Delamination

Discussion in 'Error Coins' started by masterswimmer, Oct 23, 2021.

  1. alurid

    alurid Well-Known Member

    I did not say the term are incorrect, I was just saying they are sometimes used incorrectly. As in misnomers.
    Please forgive me if my understanding of the conversation of the post was in some way different than yours..
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  3. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    What is funny is that you avoid the truth. Are you just pretending to be stupid or what!
    Insider likes this.
  4. masterswimmer

    masterswimmer Well-Known Member

    Come on guys. Can we return to our regularly scheduled programming and get back on topic?

    Lamination vs Delamination......Discuss.
    alurid and potty dollar 1878 like this.
  5. potty dollar 1878

    potty dollar 1878 Well-Known Member

    You know how these old grumps can get.
    CygnusCC, JCro57 and Insider like this.
  6. alurid

    alurid Well-Known Member

    Lamination Is a attribute that an object can have. It does not have to have two different types of material to be considered a Laminate.(like plywood)
    Delamination describe an action that has been done to a Lamination.
    Lamination error coin.
    error (19).JPG

    This is a delaminated error coin, or as calls it a 'loss after strike'.
    A de-lam, An Unretained lamination. a partial retained, a partial fold-over,
    A partial retained unretained delamination....

    What folks call thing is not as important as been understood by other people you are trying to communicate too. 2¢
    masterswimmer likes this.
  7. Insider

    Insider Talent on loan from...

    alurid, posted: "I do not believe there is any one person that can correct this [Collective misnomer].

    And there are a lot of them [Collective misnomers]. Hear are just a feww.

    Clipped planchet...
    Die polishing lines...
    double die...
    counter-stamped coin...

    :vomit: One out of three ain't bad!
  8. charley

    charley Well-Known Member

    Here here!!!
    I hear you, over here.

    (insert smiley face anywhere you like)
  9. alurid

    alurid Well-Known Member

    Last edited: Oct 26, 2021
  10. Insider

    Insider Talent on loan from...

    :yawn: Actually, I think the OP's question was answered and than a member threw a wrench into the machinery that needed to be fixed. While an attempt was being made to "fix" things, another member threw acid into the eyes of the mechanic. o_O

    Delamination is a mode of failure where a material fractures into layers. Processing can create layers in materials such as coin planchets formed by rolling due to things like impurities.

    So "delamination" appears to be the correct term for a split surface layer on a coin whether it is still attached or broken away leaving a void.

    Nevertheless, "lamination" (the split is still apart of the coin) and "delamination" (a part of the lamination [delamination ;)] is broken away) are solidly ingrained numismatic terms. :jawdrop::facepalm: I will continue to use those two incorrect terms out of habit.
    Oldhoopster, masterswimmer and JCro57 like this.
  11. Insider

    Insider Talent on loan from...

    There was a patch of black impurities rolled inside the planchet of this coin causing its surface to eventually delaminate. The rough area inside the void shows the impression made by the impurities.

    masterswimmer likes this.
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