Glossary

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Many information can be found in aluminum-manual, which is being completely revised and will soon be available. In the meantime, please use our glossary for useful word explanations.

Deep drawing

Sheet metal forming process in which a sheet metal blank is radially drawn into a forming die without altering the sheet thickness.

Degreasing

Removing lubricants such as rolling oils coolant fluids, e.g. through hot steam or immersion, or rinsing in warm soap solutions

Die block

Tool that narrows in direction of pull, which shapes the metal that passes through it; also known as the matrix.

Die-cast alloy

Casting alloy that is forced under high pressure into a mould cavity.

Doubling

Error in semi-finished rolled products in the shape of a middle split.

Drop forging

Process in which a metal is hammered (forged) between the stationary part and the moving (dropping) part of a two-piece hollow metal die.

Ductility

Property of a material to deform under tensile stress before it breaks.