Exploration of titanium deep processing technology: a comprehensive analysis of bending, stamping, spinning, and expansion In the field of titanium deep processing, a series of complex and sophisticated processing technologies are widely used to meet the needs of different industries for high-performance titanium alloy products. This article will explore in depth the four key processes in titanium deep processing: bending, stamping, spinning, and expansion technology, and analyze the characteristics and application scenarios of each process in detail.
Bending: Shaping the beauty of titanium's flexibility Bending is a common plastic deformation process in titanium deep processing. It bends titanium into the desired shape by combining plastic and elastic deformation. During the bending process, special attention should be paid to controlling the amount of spring back to ensure the accuracy of the final forming. The bending angle of titanium is flexible and can be greater than 90°, but the minimum bending radius requirement must be met. For titanium tubes with a diameter of less than 50mm, cold bending is a viable option, but stress relief annealing is recommended to optimize performance. Hot bending is divided into pull bending and push bending according to the force mode. By heating, the yield strength and plasticity of the material are reduced, and the spring back angle is significantly reduced, which is suitable for more complex bending requirements. Stamping: Challenges and opportunities coexist. Stamping of titanium plates and titanium alloys is more difficult than other materials, mainly because of their large bending radius. Domestically, cold forming, hot forming, and hot straightening after performing are usually used to deal with it. Cold forming is suitable for workpieces with thin walls, small deformation, and low precision requirements; while hot forming can achieve large deformation at lower or higher temperatures, especially suitable for the forming of thick slabs and large workpieces. Hot straightening after performing is a process that combines the advantages of cold and hot forming. The ideal shape and size are achieved through pre-stamping and subsequent heating and straightening.
Spinning: The perfect combination of efficiency and exquisiteness Spinning is an efficient forming method that combines the characteristics of multiple processes. It combines the advantages of forging, extrusion, stretching, bending, and other processes. Spin forming not only has excellent deformation conditions and a high material utilization rate (can save 20%-50%) but also has a high surface finish and high dimensional accuracy. This process is particularly suitable for manufacturing titanium alloy products with complex shapes and high precision.
Expansion technology: the art and science of connectionExpansion is a process that uses mechanical methods to tightly combine titanium tubes and titanium plates. It is widely used in the manufacture of equipment such as shell-and-tube heat exchangers. According to different expansion methods, it can be divided into mechanical expansion, flexible expansion, and explosive expansion. During the expansion process, the tube and the tube sheet are tightly connected through deformation, and the expansion degree needs to be precisely controlled to ensure the firmness and sealing of the connection. The expansion technology not only tests the technical level of the process engineer but also reflects a deep understanding of material properties and equipment performance. In summary, the bending, stamping, spinning, and expansion technologies in the deep processing of titanium materials have their characteristics, and together they constitute a strong support for the manufacturing of titanium alloy products. With the continuous advancement of science and technology and the continuous innovation of technology, these technologies will continue to be optimized and improved, providing a more solid foundation for the wide application and performance improvement of titanium alloy products.
