Ti-6Al-4V is a titanium alloy, also known as TC4, where "Ti" stands for titanium, "6Al" for 6% aluminum, and "4V" for 4% vanadium. The "Ti" stands for titanium, "6Al" for 6% aluminum, and "4V" for 4% vanadium. This alloy has a unique set of properties and a wide range of applications.

Ti-6Al-4V titanium alloy has high strength, low density and high temperature resistance, as well as excellent corrosion resistance, low density, high specific strength and good toughness and weldability. Due to these properties, it is widely used in aerospace, petrochemical, shipbuilding, automotive, pharmaceutical and other fields.

In the aerospace field, Ti-6Al-4V titanium alloy is often used for structural parts of airplanes and missiles, engine parts, pneumatic parts, etc.. In the field of automobile manufacturing, it is used in the manufacture of engine parts, body structures, and so on. In addition, Ti-6Al-4V titanium alloy is also widely used in the medical field because of its good biocompatibility, such as artificial joints, dental implants, cardiac stents, and so on.

The processing of Ti-6Al-4V titanium alloys usually includes preliminary forging, heat treatment, and precision machining steps. Preliminary forging gives it its initial shape through pressure, heat treatment is used to eliminate internal stresses and improve its mechanical properties, and precision machining yields accurate shapes and dimensions. In addition, Ti-6Al-4V titanium alloys may require surface treatment methods such as pickling, passivation and surface coating during processing to improve their surface quality and corrosion resistance.

Overall, Ti-6Al-4V titanium alloy has become an important engineering material with its unique properties and wide range of applications.