Effect of Residual Stress on Stability of Mold Equipment Bottom Plate in Steel Plate Processing
Publish Time: 2024-11-14
In the process of Steel Plate Processing, residual stress is an important consideration, especially in the manufacture of mold equipment bottom plate, its influence on stability cannot be ignored. Residual stress is the initial stress that already exists on the cross section of the component before the component bears the load, which is often generated by welding, heat treatment, cutting and other processes.
As a key component for supporting and fixing the mold, the bottom plate of the mold equipment is required to have high stability and load-bearing capacity. However, the residual stress generated by the steel plate during processing may cause the bottom plate to deform when subjected to force, thereby affecting the positioning accuracy and stability of the mold. Especially during welding, the tensile stress generated after cooling due to the expansion of the weld zone due to heat is the welding residual stress, which reduces the stiffness and load-bearing capacity of the bottom plate.
Residual stress forms an unstable stress state inside the steel plate. When subjected to external force, it will be superimposed with other stresses, resulting in local plastic deformation, which in turn causes the overall deformation of the bottom plate. During the use of the mold equipment, this deformation may cause inaccurate positioning of the mold, affecting the processing quality and production efficiency of the product.
In order to reduce the influence of residual stress on the stability of the bottom plate of mold equipment, a series of measures can be taken. For example, in the welding process, by controlling the welding temperature and time, and adopting a reasonable welding sequence and process parameters, the generation of welding residual stress can be effectively reduced. In addition, heat treatment of the bottom plate, such as low-temperature annealing or vibration aging treatment, can also help eliminate or reduce residual stress.
In addition to process control, the design and material selection of the bottom plate are also important factors affecting stability. In the design, the stress condition and deformation trend of the bottom plate should be fully considered, and the reinforcement and support structure should be arranged reasonably. In terms of material selection, steel plates with good plasticity and deformation resistance should be selected to improve the overall stability and bearing capacity of the bottom plate.
In summary, residual stress in Steel Plate Processing has an important influence on the stability of the bottom plate of mold equipment. Through reasonable process control, design and material selection, the influence of residual stress can be effectively reduced, and the stability and bearing capacity of the bottom plate can be improved, thereby ensuring the normal operation of the mold equipment and product quality.
