What is the reverse stretching process of 2000 tons hydraulic press?

 
Stretching as one of the main processes of stamping, has been widely used, especially in the field of auto parts forming, often used in the stretching process and anti-stretching process, below we use 2000 tonsHydraulic pressAs an example, the machine reverse stretching process is introduced.
2000吨拉伸成型液压机
2000 tons of stretchforming hydraulic press
拉伸成型液压机图片
stretch forming hydraulic pressPicture
2000-ton hydraulic press reverse stretching is also called reverse stretching, which refers to the process of reverse stretching the stretched workpiece in the previous process, turning the inner side of the workpiece into the outer side and making its outer diameter smaller. The reverse stretching method can increase the radial tensile stress and has a good effect on preventing wrinkling. It is also possible to increase the stretch coefficient of re-stretching.
 
The 2000-ton hydraulic press adopts a structure of a main oil cylinder and a lower jacking cylinder for the stretching process. The main oil cylinder presses the edge of the stretched material, and then the lower jacking cylinder carries out the upper jacking to complete the reverse stretching process of the workpiece. The hydraulic press of this structure is economical and practical, has high cost performance, low initial investment cost for customers, and short return cycle. For specific technical solutions, please consult ShandongZhongyou Heavy IndustryDing manager 13562463338 (with micro signal), free of charge to provide detailed technical solutions.
 
The common deep drawing products in our life, such as washbasins, aluminum pots, lunch boxes, automobile fuel tanks, automobile covers, etc., all need to use metal parts.Tensile hydraulic press. The metal drawing hydraulic press is mainly used for the deep drawing process of plates, in which the double-acting drawing hydraulic press has two movable beams inside and outside: the stretching moving beam and the blank holder moving beam, which can drop rapidly at the same time during operation. When the mold approaches, it starts to drop slowly to close the mold, and then starts to hold the pressure.