The transverse and longitudinal toughness of steel plates are typically different. This is due to the grain structure formed during the manufacturing process of the steel plates.
During the manufacturing of steel plates, grains are formed through the processing and cooling of the material. In the transverse direction, the grains usually extend along the width of the plate. In the longitudinal direction, the grains extend along the length of the plate. This arrangement of grains determines the performance differences of the steel plate in different directions. Generally, the transverse toughness of the steel plate is relatively higher, while the longitudinal toughness is relatively lower. Transverse toughness mainly refers to the tensile strength and ductility of the steel plate in the transverse direction, meaning it has high tensile strength and good ductility, allowing for some plastic deformation under stress. On the other hand, longitudinal toughness refers to the tensile strength and ductility of the steel plate in the longitudinal direction. This difference in transverse and longitudinal toughness needs to be considered in applications. For example, in certain applications, it is necessary to consider the tensile strength of the steel plate in the longitudinal direction to ensure structural stability. In other cases, the tensile strength and ductility in the transverse direction may be more important, such as in situations that require stamping or bending processes. In conclusion, the transverse and longitudinal toughness of steel plates are typically different due to the arrangement of grains during the manufacturing process. This performance difference needs to be considered and addressed in different applications.
2.Solution:
During bending processes, change the bending direction from parallel to the direction of the metal material fibers to perpendicular to the direction of the metal material fibers. It has been verified that this solution can effectively eliminate the occurrence of cracks.