In the blanking process, whether it is punching, blanking, trimming and other processes, the nitrogen spring is used for unloading, so the nitrogen spring is mainly related to the unloading plate in structure. It can be connected with the discharge plate or not, and the diameter uses a nitrogen spring to top and discharge the plate. The nitrogen spring can be fixed in the mold in diameter, or it can be installed in different forms of flanges, the nitrogen spring and the mold can be connected together, and it can even be installed in the mold without any connection. Usually the travel of the nitrogen spring is relatively small, that is to say, the nitrogen spring with large pressure and small travel should be selected, of course, the guide of the discharge plate, or it needs to be designed separately, and the nitrogen spring cannot be used as the guide of the discharge plate.

The use of nitrogen spring in the bending process, whether it is single Angle, double Angle bending, lateral bending, correcting bending and bending, is mainly to use the strong initial pressure of nitrogen spring to press the workpiece and effectively prevent the displacement of the workpiece during deformation. At the same time, due to the strong initial pressure, the bending rebound can be effectively controlled. Usually, the nitrogen spring is used to push the die's pressing plate, and the pressing plate or working parts move at the same time, pressing the workpiece, playing the role of pressing the material, and preventing the plate from slipping during the bending process. This design usually requires the nitrogen spring to be relatively fixed, and a nitrogen spring with moderate pressure and stroke is selected.

The main function of the nitrogen spring used in the drawing process is holding, which is determined by the characteristic curve of the nitrogen spring. It can obtain a very superior holding force, and the force can be basically kept constant. To ensure the smooth plastic flow of the metal, to ensure the smooth transfer of many and triangles, and can adjust the holder force at any time according to the forming situation of the part. The adjustment of the mold is convenient, and the quality of the tensile parts is very stable. This is a process that uses nitrogen spring technology in the cold stamping process, and it is also an effective process. This kind of application, the nitrogen spring is moved with the holder ring, can be connected with the holder ring, can not be connected independently placed, usually requires a larger stroke, the same nitrogen spring can not be used as a guide, the guide device needs to be designed separately.