Using precision forging machine to produce titanium forgings and titanium alloy bars has the characteristics of high production efficiency, precise size, good surface quality and high material utilization rate, which shows more and more advantages in the production of titanium bars.

The process characteristics of titanium forgings are as follows:

(1) Hammer forging frequency is high, up to hundreds or even thousands of times per minute. This loading method reduces the friction coefficient between the metal and the tool, the forging surface is smooth and the internal deformation is uniform.

(2) hammer forging, each stroke of small stroke, small deformation, small contact area with metal, can greatly reduce the deformation force and deformation work, can reduce the tonnage of equipment and improve the service life of the tool.

(3) The stroke of the hammer head can be adjusted arbitrarily, and the shape face of the hammer head can adapt to the larger process size. It is not necessary to replace the hammer head, and forging bars with a certain size range can be produced.

(4) When forging, the stroke of the four hammer heads remains unchanged, so the dimensional accuracy is high.

(5) The feed quantity can be adjusted according to the temperature change of the billet in the deformation process to achieve "isothermal" forging.

(6) According to the four hammer heads with curved grooves to compress the metal, the metal can only be extended axially, so there will be no circumferential edges and cracks, which is different from the flat anvil compression in free forging.

(7) The forging will produce a high triaxial compression stress, which can improve the plasticity of the metal 2-3 times, and can obtain a high pass forging ratio (pure titanium 6/1, alloy 4/1),

(8) When the feed speed and pass pressure drop amount are very large, a high thermal effect will be generated in the billet and the deformation temperature will rise. Such as TC11 alloy temperature rise can reach 90℃, too high temperature rise will make the forging structure coarser.