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bonding one or more materials with an aluminum extrusion.
hardening aluminum extrusions by storing at room temperature or elevated temperatures following heat treatment.
spontaneous change in properties of an aluminum extrusion which occurs faster at elevated temperatures.
bonding corrosion-resistant aluminum extrusions to a stronger aluminum alloy base.
a powdery substance called aluminum oxide which is produced from bauxite.
a silvery ductile metallic element found primarily in bauxite.
aluminum and oxygen chemically compounded, and is formed immediately on the aluminum extrusion surface when it is exposed to oxygen in the air.
to heat a metal to a temperature slightly below its melting point, then gradually cooled to be softened.
an oxide coating or protective layer on aluminum extrusions. Produced by submerging the aluminum extrusion in an electrolytic bath with electric current (aluminum being the anode).
to speed up the process of the natural aging cycle of aluminum extrusions by exposing the aluminum to heat for a period of time.
a steel tool which supports and/or presses against the outer surface of an aluminum extrusion die (tooling). Sole purpose is to support the tooling during the aluminum extrusion process.
otherwise commonly known as bar stock. Aluminum extruded profiles take on standard dimensions or commonly used sizes of general industrial use. These aluminum extruded shapes can be produced in round, square, rectangular, hexagon, octagon or triangular shapes.
is a clay-like mineral, which is the main ore of alumina and is composed of aluminum oxides and aluminum hydroxides.
aluminum billet also known as ingot logs, is the raw material in a cylindrical form which is cut to smaller lengths and fed to the aluminum extrusion press to be formed into an aluminum extruded shape.
the opening in which the billet enters during the aluminum extrusion process.
similar function to a “backer”, a tool which supports the backer and extrusion die during pressure forced during the aluminum extrusion process.
side to side deviation from straightness.
the impurities of an aluminum billet that is not extruded through the die opening.
a weld of two aluminum extrusion sections, end to end.
computer assisted design
computer assisted manufacturing
the outer most support tool of the aluminum extrusion die for a hollow extruded profile.
Coefficient of thermal expansion
relative rate at which a substance expands in heat, compared to standard.
calculated typically when investigating bending and/or stretching forces. Strength to resist outside pressures.
ability to transmit electricity, light or heat. Aluminum extrusions have inherent characteristics of electrical and thermal conductivity. A preferred material for heat dissipation products and electrical applications.
metal being deteriorated by chemical or electrochemical reactions with other materials/substances.
aluminum extrusions will gain in strength when exposed to very low temperatures.
the removal of burrs and/or sharp edges.
an aluminum extrusion tool in a pre-determined shape is created via a process called electrical discharge machine. This tool causes the aluminum billet to take shape of the pre-determined aluminum extruded shape.
markings on the surface of the extrusion which are caused by the bearing surface of the aluminum extrusion die opening.
a design feature afforded by the aluminum extrusion process, which assists in assemblies of two mating parts. Sliding action.
a dimensional change which is induced by stress. The aluminum extrusion returns to its original dimensions when stress is relieved.
the addition or plating of a thin layer of metal, typically copper, silver or tin.
total maximum percentage of stretch an aluminum extrusion can endure before tearing.
to texture aluminum extruded profiles by a controlled corrosive process.
a process which is similar to etching, with reduced material removal. Creates a desired, matte finish to remove surface defects or to create a surface with minimal reflectivity.
to force aluminum through a desired shape with pressure to produce a lineal profile.
the shape which is created while an aluminum billet is being pushed through an extrusion die.
a product made by the aluminum extrusion process. A lineal shape of a predetermined design developed though pressure.
to work with the aluminum extruded profile into a finished state, adding value through cnc machining, bending, forming, punching, welding and many other processes.
a determination of the level of difficulty with which an aluminum extrusion can be mechanically formed. 6000 series alloys are considered good formability materials.
to change the shape of a lineal aluminum extrusion by a way of mechanical process.
Hard coat anodizing
chemical and electrical finishing process for aluminum extrusions that produces a thin, hard protective layer on the surface of the aluminum extruded profile.
also known as hinging design. A joint which allows parts to rotate without separation. Hinging designs can come in many different sizes and/or shapes. Proper design and tolerancing is valuable when incorporating a hinging method to the final design of an aluminum extruded component.
Hollow aluminum extrusion
a shape which was designed to have a hollow section incorporated into it. A shape which completely encloses one or more voids.
an attachment method or joint that can be produced when one member is overlapping another.
the level of difficulty of working with metal when machine tools are applied to the aluminum extruded shape. 6000 series alloys are considered good machinability materials.
obtained when standard aluminum extrusion practices are applied. Goes without aid of any other operation, post extrusion process. Mill finish will vary depending on the alloy selected.
does not contain iron; aluminum is a nonferrous material. Term typically used in the aluminum extrusion industry to explain the type of materials used within the extrusion process.
a secondary, mechanical finishing process that is achieved when applying buffers (buffing pads or wheels) to the surface of an aluminum extruded profile. Can create many different and desired finishes.
coating an aluminum extrusion profile with finely ground powder of coloring agents, resins and other additives. Another form of chemical finishing or painting to achieve a desired look.
Precision aluminum extruder
an aluminum extruder that is capable of achieving tolerances tighter than industry standard. Alexandria extrusion company.
pounds per square inch. A mechanical load or pressure.
to quickly chill hot aluminum in cold water or forced air.
also known as recycled or remelt aluminum. Aluminum recovered from scrap.
Semi-hollow aluminum extrusion
a cross section of an aluminum extruded profile that partially encloses a void.
Solid aluminum extrusion
a cross section of an aluminum extruded profile which does not have any internal voids.
dimensional tolerance that is established for a certain class of product. Alexandria extrusion company is capable of achieving ½ of industry standard, thus making it a precision aluminum extruder.
relative strength of aluminum profile to its weight. Aluminum is about twice that of mild steel.
to straighten an aluminum extruded profile, which can range from .5 of 1% to 3%. Relieves stress on the extruded profile.
also spelled stretch forming; is the process of shaping an aluminum extruded profile around a mandrel by a way of stretching. Reduces deformation of profile and internal walls of radii. Used for precision bending in critical industries such as medical, marine and fenestration.
the combination of hardness and strength imparted to a metal b mechanical or thermal treatments. T4, t5, t6 are examples of temper designation call-outs.
also known as extruded tube; a hollow cross sectional aluminum extrusion profile.
an empty space in the cross section of the aluminum extrusion profile.