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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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What is a "Chill Mark"?

1996

Dear sirs,

Could anyone explain to me what is a "Chill mark" ?

Best Regards,

Ricks Lam
- Hong Kong

Don't know what material you're dealing with, but chill marks are usually where two metal fronts meet and do not re-fuse completely.

Greg Utterback
light metal products
1996

Dear Rick, We encounter "chill marks" in die castings or tin/lead castings from rubber molds. It is when the metal is cast too cold and doesn't flow properly leaving usually a cylindrical mark with an almost rough surface. David

David Guleserian
- Rhode Island
1996

Hi, gentlemen. From Greg and David's description, this sounds like what diecasters often call a "cold shut".

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
January 3, 2009

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