Aluminum

Aluminum

Industry: Metals

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Aluminum

section number

Metals; Aluminum

The number assigned to an extruded or drawn profile for identification and cataloging purposes, usually the same number assigned for the same purpose to the die from which the profile is made.

section

Metals; Aluminum

(1) A drawing showing an imaginary view through an item as though it had been cut by a plane (2) To cut through a piece of metal to expose an internal area for metallurgical examination.

secondary aluminum

Metals; Aluminum

Aluminum recovered primarily from scrap, segregated by alloy, and resmelted. Aluminum scrap is widely recycled and supports a large secondary aluminum production industry.

seamless

Metals; Aluminum

A hollow product which does not contain any line junctures resulting from method of manufacture.

The junction line of metal that has passed through a hollow die, separated and rejoined at the exit point. Seams are present in all extruded hollows produced from the direct extrusion process and in ...

defect seam

Metals; Aluminum

An unbonded fold or lap on the surface of the metal, which appears as a crack, usually the result of a defect in casting or working that has not bonded shut.

scalping

Metals; Aluminum

Mechanical removal of the surface layer from a fabricating ingot or semi-finished wrought product so that surface imperfections will not be worked into the finished product.