冲压英文术语.docVIP

GlossaryDeep drawn stamping is a complex and exacting technology. Its applications are far reaching and its language is often new to many engineers and purchasing managers. To help with the buying decision, we’ve compiled a glossary of terms. Your ITW Drawform representative is also a great resource of information. A Anisotropy (Earring) - Variations in one or more physical or mechanical properties with direction. B Blank - The piece of sheet metal, produced in cutting dies, that is to be subjected to further press operations. A blank may have a specific shape developed to facilitate forming or to eliminate a trimming operation subsequent to forming. Blank Development - The process of determining the optimum size and shape of a blank for a specific part to minimize scrap. Blank Gridding (Circle Grid Analysis) - Imprinting a metal blank with a pattern on the sheet surface, such pattern to be used for subsequent strain measurement and interpretation. Blank Holder - That part of a forming die which holds the blank by pressure against a mating surface of the die to control metal flow and prevent wrinkling. The blank holder is sometimes referred to as “hold down” or binder area. Pressure is applied by mechanical means, springs, air, or fluid cushions. Blank Holder Pressure - The pressure exerted by the blank holder against the blank. This is normally adjustable to control metal flow during drawing. Blanking - The act of cutting a blank. C Clamping Pressure - Pressure applied to a limited area of the sheet surface, usually at the periphery, to control or limit metal flow during forming. Coining - A process of cold forming metals in which the metal is shaped between two dies in such a manner as to fill the depression of both dies in relief by displacement of the material. Cold Working - The deformation of metal significantly below its recrystallization temperature such that work hardening occurs. Cupping - A press forming operation in which a cup shaped part is produced f