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Parent Category: Technical Articles from Journal Back Copies

Category: Technical Articles 2001

Dennis Davies

The puzzle in this case was why did copper bowls spun in Birmingham throw off an enormous quantity of fire-scale, while similar bowls bought in the USA did not? Also, why do some small copper blanks do it and others do not?

'Aspects of Copper for the Enamellist' by Dennis Davies (in the Guild library) was consulted, but it only described the effect of temperature and water quenching on the formation of scale. A letter of enquiry to Dennis produced the following enlightenment:

"Thank you for presenting me with a metallurgical puzzle which I will try to unravel. These sort of things do brighten up one's life!

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