Overview of core processes for deep processing of titanium materials

Exploring the Processes of Titanium Deep Processing: A Comprehensive Analysis of Bending, Stamping, Spinning and Expansion
In the field of titanium deep machining, a series of complex and delicate processes are widely used to meet the demand for high-performance titanium alloy products in different industries. In this article, we will explore four key processes in titanium deep processing: bending, stamping, spinning and expanding, and analyze the characteristics and application scenarios of each process in detail.
Bending molding: shaping the flexible beauty of titanium material
Bending molding is a common plastic deformation process in titanium deep processing, which combines plastic and elastic deformation to bend titanium into the desired shape. During the bending process, special attention should be paid to the control of rebound volume to ensure the accuracy of the final molding. The bending angle of titanium is flexible and can be greater than 90°, but the minimum bending radius requirement needs to be met. Cold bending is a viable option for titanium tubes with diameters less than 50mm, but then stress relief annealing is recommended to optimize performance. Hot bending, on the other hand, is categorized as tension bending or push bending depending on the force applied, and is suitable for more complex bending requirements as the yield strength and plasticity of the material are reduced by heating, significantly reducing the angle of springback.
Stamping and forming: challenges and opportunities
Stamping and forming of titanium plates and alloys is more difficult than other materials, mainly due to their larger bending radius. Cold forming, hot forming and hot straightening after preforming are commonly used in China to cope with this. Cold forming is suitable for thin-walled, small deformation and precision requirements of the workpiece is not high; hot forming can be achieved at lower or higher temperatures under the large deformation, especially suitable for thick slabs and large workpiece molding. Pre-forming followed by hot-straightening, on the other hand, is a process that combines the advantages of cold and hot forming to achieve the desired shape and size through pre-stamping and subsequent heating and straightening.

Spin molding: the perfect combination of efficiency and beauty
Rotational molding is a highly efficient molding method that combines the advantages of forging, extrusion, stretching, bending and other processes. Spin molding not only has superior deformation conditions and high material utilization (20%-50% savings), but also has high surface finish and high dimensional accuracy. This process is especially suitable for manufacturing titanium alloy products with complex shapes and high precision.
Expansion joint technology: the art and science of connection
Expansion joining is a mechanical method to make titanium tube and titanium plate closely combined process, widely used in the manufacture of tube heat exchangers and other equipment. According to the different ways of expansion, it can be divided into mechanical expansion, flexible expansion and explosive expansion. During the expansion process, the tube and tube plate are deformed to achieve a tight connection, and the degree of expansion needs to be precisely controlled to ensure the firmness and sealing of the connection. Expansion technology not only tests the technician's technical level, but also reflects a deep understanding of the material properties and equipment performance.
In summary, titanium deep processing of bending molding, stamping molding, rotational molding and expansion technology has its own characteristics, which together constitute a strong support for the manufacture of titanium alloy products. With the continuous progress of science and technology and the continuous innovation of technology, these technologies will be continuously optimized and improved, providing a more solid foundation for the wide application and performance enhancement of titanium alloy products.