What is the dimensional accuracy of metal stamping parts
Metal stamping parts are widely used in both civil and industrial applications. However, according to different industries and products, the dimensional accuracy requirements of metal stamping parts are different. For precision industries such as watches, automobiles, and medical treatment, metal stamping The dimensional accuracy of the parts is high. Many people don’t know much about the dimensional accuracy of metal stamping parts. Introduction to the dimensional accuracy of metal stamping parts:
Metal stamping parts
The dimensional accuracy of metal stamping parts refers to the difference between the actual size of the stamping part and the basic size. The smaller the difference, the higher the dimensional accuracy of the metal stamping part.
The dimensional accuracy of metal stamping parts is measured by tolerance registration. The national standard stipulates that it is divided into 20 levels, from IT01, IT0, IT1, IT2 to IT18. The larger the number, the lower the tolerance level (processing accuracy), and the allowable change in size The larger the range (tolerance value), the less difficult the processing.
The dimensional accuracy of stamping parts can generally be divided into two types: precision and ordinary. The precision level is the accuracy that can be achieved technically in the stamping process, while the ordinary level is the accuracy that can be achieved by more economical means. When the mold manufacturing accuracy is high, the external dimension accuracy of the metal stamping parts can reach IT10 level, and the inner hole size can reach IT9 level.
The factors affecting the dimensional accuracy of metal stamping parts during the production process include: the manufacturing accuracy of the metal stamping die; the assembly process of the metal stamping die; the elastic recovery of the material after stamping; and other accidental factors in the production process, such as inaccurate positioning and material performance Instability, etc., will affect the dimensional accuracy of metal stamping parts. Therefore, if you want to produce stamping parts with high dimensional accuracy, you must consider these aspects.