The processing technology of titanium profiles includes plastic deformation, connection technology, and additive manufacturing, which can be divided into the following categories:

1. Plastic deformation process

Forging: Using forging equipment to cut or directly form titanium ingots, it is divided into ordinary forging, precision forging, and isothermal forging, suitable for the production of bar, forging, and die forging.

Rolling: Using rotating rollers to continuously deform titanium materials, producing plates, bars, tubes, and profiles. Hot rolling and cold rolling processes can control thickness accuracy separately.

Squeezing and Pulling: Squeezing is divided into forward/reverse extrusion, used for complex section profiles; Pulling is used for high-precision pipes and wires.

2. Deep processing and forming technology

Bending forming: The rebound amount is controlled by cold bending or hot bending, and the minimum bending radius needs to meet the material requirements. After cold bending, stress relief annealing is required.

Stamping forming: suitable for thin-walled parts, hot forming can reduce deformation resistance, and hot straightening after pre forming can improve the forming accuracy of thick plate blanks.

Spinning forming: Combining forging and stretching processes, with high material utilization, suitable for complex high-precision parts.

3. Connection and surface treatment

Expansion technology: The tight connection between titanium tubes and tube sheets is achieved through mechanical expansion, flexible expansion, or explosive expansion, with the expansion degree controlled at 1% -6% to ensure sealing.

Welding: Argon arc welding is the main method, while electron beam welding is used for high-precision components and requires inert gas protection to avoid oxidation.

4. Additive manufacturing

Laser selective melting: used for complex structural components of alloys such as Ti-6Al-4V, with high material utilization and the ability to achieve gradient functional materials.

2、 Process selection and optimization

High temperature processing: Titanium has poor plasticity and often needs to be heated to 20-50 ℃ below the β phase transition point for forging or rolling to reduce deformation resistance.

Digital control: DEFORM software is used to simulate metal flow lines, combined with online detection to ensure accuracy.