The production process of titanium forgings mainly includes the following steps:
Raw material preparation:
The raw materials of titanium forgings are mainly Titanium sponge. Mix the sponge with other alloying elements in a certain proportion to form titanium alloy raw materials.The titanium alloy raw material is put into a high-temperature vacuum furnace and melted several times, so that the titanium alloy raw material is fully melted, eliminating impurities and improving the purity and uniformity of the material. In the melting process, it is necessary to control the temperature and oxygen content in the furnace to ensure that the chemical composition of the titanium alloy meets the requirements, and then get the titanium ingot.
Forging:
Titanium ingots of satisfactory quality are sawn according to the required weight, put into a heating furnace and heated at a certain temperature and time to improve their plasticity. Take out the heated billet, according to the shape and size requirements of the product, free forging can be used. Mould forging or multiple forging method, let the billet under the action of forging hammer forging deformation. This process is mainly arranged by the technicians according to the specific order requirements to the production process and technical parameters, such as temperature, forging and rolling times and the need to use the forging hammer equipment. Titanium alloy forging is characterised by high deformation resistance, sensitive forging temperature, etc. Therefore, temperature, pressure and deformation rate need to be controlled during the forging process to ensure that high quality titanium alloy billets are obtained.
Machining and annealing
After forging, the titanium alloy billet needs to be further processed, including grinding, cutting, milling, drilling and other processes, to the desired shape and size. In addition, after forging, the workpiece may have organisational changes and residual stresses, which need to be annealed to eliminate the deformation and stresses.
