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Aluminum

Contributors in Aluminum

Aluminum

Blister

Metals; Aluminum

A raised area on the surface of an extruded product due to subsurface gas expansion during extrusion or thermal treatment.

Chatter mark

Metals; Aluminum

Numerous intermittent lines or grooves that are usually full width and perpendicular to the extrusion direction.

Mandrel

Metals; Aluminum

The fixed or floating projection positioned in the die opening that forces metal to flow around it. The wall thickness of the extrusion is determined by the difference in the dimensions of the die ...

Mark

Metals; Aluminum

Damage in the surface of the product whose name is often described by source.

Arbour mark

Metals; Aluminum

Surface damage in the vicinity of a coil ID caused by contact with a roughened, damaged or non-circular arbour or by the end of the product.

Bearing mark

Metals; Aluminum

A depression in the extruded surface caused by a change in bearing length in the extrusion die.

Carbon mark

Metals; Aluminum

Grey or black surface marking caused by contact with carbon runout blocks.

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