As a material with good plasticity and corrosion resistance, low zinc brass is susceptible to work hardening during the stamping process due to its unique composition and organizational structure, which in turn affects the forming quality and dimensional accuracy of stamped parts. Taking C24000 low zinc brass as an example, how to effectively control the work hardening during the stamping molding process has become the key to process optimization. Through the reasonable design of molding process parameters, not only can reduce the degree of hardening of the material in the process, but also extend the life of the mold to ensure stable product performance.
In the molding process of C24000 stamping parts, work hardening is mainly manifested as the hardness of the material increases in the local stress area and the ductility decreases, resulting in cracks or uneven deformation when forming the product. In this regard, the optimization of process parameters is particularly important. First, the stamping speed and impact energy need to be precisely controlled. Higher forming speed may cause instantaneous excessive deformation of the material, exacerbating work hardening; while moderate speed can ensure that the material has enough time to distribute strain, but also conducive to the timely conduction of heat to alleviate the hardening effect. Secondly, the mold design and punching clearance has a direct impact on the stress distribution in the forming process. Suitable die clearance and reasonable local die structure can reduce the local strain rate of the material and reduce the degree of work hardening. In addition, the appropriate blank holding force not only fixes the position of the sheet, but also controls the uniformity of the force on the sheet in the stamping process and reduces the hardening phenomenon due to local stretching.
C24000 low zinc brass stamping molding process parameters optimization is a systematic project, involving stamping speed, blank holding force, die design, lubrication and temperature control and other factors. Through scientific control of these parameters, not only can effectively control the hardening and improve the forming quality of products, but also help to realize the double improvement of production efficiency and product consistency. With the development of numerical simulation technology and online monitoring technology, real-time adjustment of process parameters in the molding process in the future will become an important direction to reduce work-hardening and realize intelligent manufacturing, and provide a stronger technical guarantee for the efficient application of low zinc brass.
