普通旋压spnning.ppt

Conventional spinning;Spinning, sometimes called spin forming, is a metal forming process used to form cylindrical parts by rotating a piece of sheet metal while forces are applied to one side. A sheet metal disc is rotated at high speeds while rollers press the sheet against a tool, called a mandrel, to form the shape of the desired part. Spun metal parts have a rotationally symmetric, hollow shape, such as a cylinder, cone, or hemisphere. Examples include cookware, hubcaps, satellite dishes, rocket nose cones, and musical instruments. ;残莉诣蔷尽嘶殴志统矣称铣茹汁轨抢邻返陪肇牺熟裤货济斗株监痰函惺持普通旋压spnning普通旋压spnning;根据板厚变化情况旋压可分为两大类：;普通旋压 旋压过程中，板厚基本保持不变，旋压成形主要依靠坯料圆周方向与半径方向上的变形来实现。;;旋压的特点;不足：;普通旋压的基本方式;（一）draw spinning 拉深旋压;简单拉深旋压;多道次拉深旋压;（二）necking spinning 缩径旋压;（三）expanding bulging 扩径旋压;（四）Auxiliary forming  辅助成型;普通旋压工艺;旋压力;成形极限;影响旋压成型的因素、工艺条件;影响旋压成型的因素、工艺条件;旋压件;The end,thank you!