Plastic forming is a technological method that uses the plasticity of materials to process parts with little or no cutting under the external force of tools and dies. Due to the characteristics of the process itself, although it has a long history of development, it is also constantly researching and innovating, and new processes and methods emerge one after another. The basic purpose of these researches and innovations is to increase the plasticity of materials, improve the precision and performance of formed parts, reduce the deformation force, prolong the service life of dies and save energy. And "plastic forming principle" is the basic theoretical knowledge to achieve these goals; The prerequisite courses for studying this course are mainly Mechanics of Materials and Metallurgy, which are important components of the mold discipline.