ALUMINUM GLOSSARY - Airoldi Metalli

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Profile, Hollow Extruded (Class 1) A hollow extruded profile whose void is round and one inch or more in diameter, and whose weight is equally distributed on opposite sides of two or more equally spaced axes. Profile, Hollow Extruded (Class 2) Any hollow extruded profile other than Class 1, which does not exceed a 5-inch diameter circumscribing circle and has a single void of not less than 0.375 inch diameter or 0.110 square inch area. Profile, Hollow Extruded (Class 3) Any hollow extruded profile other than Class 1 or Class 2. Profile, Lip Hollow A hollow profile of generally circular cross section and nominally uniform wall thickness with one hollow or solid protuberance or lip parallel to the longitudinal axis; used principally for heat-exchange purposes. Profile, Pinion Hollow A hollow profile with regularly spaced, longitudinal serrations outside and round inside, used primarily for making small gears. Profile, Rolled A profile produced by hot rolling. Profile, Semihollow A profile any part of whose cross section is a partially enclosed void the area of which is substantially greater than the square of the width of the gap. The ratio of the area of the void to the square of the gap is dependent on the class of semihollow profile, the alloy and the gap width. Profile, Semihollow Extruded A semihollow profile brought to final cross-sectional area by extruding. Profile, Solid A profile other than hollow or semihollow. Profile, Spiral Erroneously used sometimes where the term helical extruded profile is intended. Profile, Stepped Extruded
An extruded profile whose cross-section changes abruptly in area at intervals along its length. Profile, Streamline Hollow A hollow profile with a cross-section of teardrop shape. Profile, Structural A profile in certain standard alloys, tempers, sizes, and section, such as angles, channels, H-sections, Ibeams, tees, and zees commonly used for structural purposes. For channels and I-beams, there are two standards, namely Aluminum Association Standard and American Standard. Profile, Tapered Extruded An extruded profile whose cross section changes continuously in area along its length or a specified portion thereof. Puller A device which guides metal down the runout table as it is being extruded. Quench, Air and Water Usually refers to quenching or rapid cooling at the die, where large volumes of forced air, water or a combination thereof are directed against aluminum extruded sections as they emerge from the die. Quenching Controlled rapid cooling of a metal from an elevated temperature by contact with a liquid, a gas, or a solid. Radial Layout The method of locating the apertures in a die so that the major axis of each profile lies along a circle of defined radius, giving each portion of bearing surface the same relationship to the center of the die as similar portions on other profiles. Ram The press component which applies force against the dummy block. Ram and stem are interchangeable terms describing any extension of the main cylinder in an extrusion press. Reciprocator A mechanical device which moves an applicator along a determined path repeatedly. Recovery
Page 1 and 2: ALUMINUM GLOSSARY AMS Abbreviation
Page 3 and 4: Cut-away portion of die beginning a
Page 5 and 6: Bow, Longitudinal Curvature in the
Page 7 and 8: The welding of two sections that bu
Page 9 and 10: The smallest circle that will compl
Page 11 and 12: Contour That portion of the outline
Page 13 and 14: Deep Drawing Forming a deeply reces
Page 15 and 16: The extrusion press component locat
Page 17 and 18: tolerance. Edge, Broken (Cracked) E
Page 19 and 20: Emissivity The relative ability of
Page 21 and 22: The velocity or rate at which an ex
Page 23 and 24: conventional round billet is forced
Page 25 and 26: Frictional Heat That heat imparted
Page 27 and 28: Commonly used as a shop term to den
Page 29 and 30: A part formed in a confining die fr
Page 31 and 32: The initial adjustable and removabl
Page 33 and 34: The chamber of an extrusion press i
Page 35 and 36: Mill finish is the finish obtained
Page 37 and 38: Orange Peel (1) Surface roughening
Page 39 and 40: Pick-Off The transfer of portions o
Page 41 and 42: the purpose of producing a gloss or
Page 43: Profile, Class 2 Hollow Extruded An
Page 47 and 48: Rib An elongated projection on a sh
Page 49 and 50: Seam Defect An unbonded fold or lap
Page 51 and 52: Sheet, Clad Composite sheet having
Page 53 and 54: Slug A metal blank for forging or i
Page 55 and 56: An auxiliary tool sometimes attache
Page 57 and 58: A bright superficial band or elonga
Page 59 and 60: A structural finish is a standard f
Page 61 and 62: The parts of an extrusion press tha
Page 63 and 64: A tube of nominally uniform wall th
Page 65 and 66: The action of relieving entrapped a
Page 67: Wire produced by hot extruding. Wir

ALUMINUM GLOSSARY - Airoldi Metalli

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