橡皮成形工具和成形模,在批量生产中经常用来成形筒形和锥形钣金件。这项成形工艺遇到的一个主要问题是,坯件常因失稳而四周起褶。为了消除褶皱,苏联占比雪夫航空学院发展了一种变刚性橡皮成形模(阳模)。这种模具的工作原理和用于成形半球状薄壳件的几个步骤,均见于附图。如图所示,锥形坯件放在阴模里。使用的阳模由多个弹性橡皮盘和薄 Rubber forming tools and forming dies are often used to shape cylindrical and conical sheet metal parts in mass production. A major problem encountered in this forming process is that the blanks often fold around due to instability. In order to eliminate wrinkles, the Soviet Union accounted for Chevron Aeronautical Institute developed a rigid rubber stamping die (male). The working principle of this mold and several steps for forming hemispherical shells are shown in the attached drawings. As shown, the tapered blank is placed in the female mold. The male mold used consists of multiple elastic rubber discs and a thin