Sheet Metal Stamping Dies Processes - …（钣金冲压模具和流程-u2026）.pdfVIP

Sheet Metal Stamping Dies Processes Training Objectives After watching the video and reviewing this printed material, the viewer will gain knowledge and understanding of the stamping process and the die systems used to form sheet metal. • the terms “ductility” and “formability” are explained • the essential components of the stamping process are detailed • basic stamping terms are defined • progressive and transfer die technology is illustrated • die lubrication is addressed • circle grid analysis is explained Sheet Metal Stamping Stamping presses and stamping dies are tools used to produce high volume sheet metal parts. These parts achieve their shape through the effects of the die tooling. Production stamping is generally performed on materials .020” to .080” thick, but the process also can be applied to foils as thin as .001” or to plate stock with thickness approaching 1.000”. Formability is the primary attribute of sheet metal material. Formability is further defined as the materials ability to be: • bent • stretched • drawn The metallurgical term for these qualities is “ductility”. Ductility is the materials ability to deform and elongate without fracture. The extent to which a stamping is subjected to such deformation is directly related to the part’s overall shape and geometry. Other factors also influence the material’s formability. They include: • the die design • the press • the press speed • lubrication • sheet metal feeding mechanisms • monitoring and control systems The word “die” is a generic term used to describe the tooling used to produce stamped parts. A die set assembly consisting of a male and female component is the actual tool that produces the shaped stamping. The male and female components work in opposition to both form and punch holes in the stock. The upper half of the die set, which may be either the male or female, is mounted on the press ram and delivers the stroke action. The lowe