The main factors affecting the plasticity and deformation resistance of battery shrapnel stamping parts

The plasticity of hardware battery shrapnel is not fixed, and there are many factors that affect it. It is believed that in addition to the internal factors such as the crystal lattice type, chemical composition and metallographic structure of the hardware itself, the deformation mode of its external factors (mechanical factors, namely, stress state and The influence of strain state) and deformation conditions (physical factors, namely deformation temperature and deformation speed) are also great. When the battery shrapnel is plastically deformed, the external force that deforms the stamping material is called the deformation force. The force of hardware to resist deformation is called deformation resistance, which reflects the difficulty of plastic deformation of the material. Generally, the unit deformation force of the plastic deformation of the stamping material is used to express its magnitude. The battery shrapnel manufacturer accurately believes that not only the shape and size of the metal will change after plastic deformation by external force, but also its internal structure and performance will also change. Generally, the phenomenon of work hardening (strain rigidity) occurs, that is, the mechanical properties of the metal. As the degree of deformation increases, the strength and hardness gradually increase, while the plasticity and toughness gradually decrease; the crystal grains will elongate and arrange along the deformation direction to form a fibrous structure. Make the material produce anisotropy; due to uneven deformation, internal stress will be generated inside the stamping material, which will remain in the material as residual stress after deformation.