Making volume from a flat sheet.
Explain hammered sheet forming and forging.
Raising sheet metal
Raising turns a flat sheet into a three-dimensional vessel by repeated hammering over stakes, anvils, or forms. The metal is gradually compressed and lifted; it hardens as it is worked and must be annealed by heating to restore workability. Basins, bowls, ewers, cups, trays, and lids can all involve raised sheet.
Forging and planishing
Forging shapes metal under hammer blows. Planishing smooths and regularizes a surface after heavier forming. Hammer marks may be visible inside vessels or under rims, while polished exteriors can hide labor. The website should show both diagram and close-up, because raising is difficult to understand from a finished photograph alone.
Why this matters for inlay
Inlay depends on a stable surface. A raised vessel may be shaped, annealed, planished, trimmed, rimmed, and only then engraved and inlaid. If the surface is distorted after inlay, the silver or gold can loosen. This is why understanding body formation helps visitors understand surface ornament.
Key Terms
Featured Museum Examples

Basin with Zodiac Signs and Royal Titles
late 13th–early 14th century, attributed to Egypt or Syria
The Metropolitan Museum of Art