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Additional recommended knowledge
Sinking, also known as doming, dishing or dapping, is a metalworking technique whereby two-dimensional sheet metal is formed into a three-dimensional object by hammering it into a concave indentation. While sinking is a relatively fast method, it results in stretching and therefore thinning the metal, risking failure of the metal if it is 'sunk' too far.
Sinking is used in the manufacture of many items, from jewelery to plate armour.
Sinking is performed by using a curved hammer or mallet-driven punch to force sheet metal into an indentation. The exact nature of these tools will vary greatly depending on the scale and nature of the work. Fine work will typically require a small doming punch and a doming block. Larger work may involve a special sinking hammer and sinking stump. The forming indentation need not be permanent; metal can be sunk into sandbags or lead blocks.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sinking". A list of authors is available in Wikipedia.|