Titanium alloy processing such as titanium rod, titanium wire, titanium plate, titanium forging, etc.

By heating or pressurizing, or both, using or without filling materials, the titanium alloy material workpiece can achieve atomic bonding.

Commonly used welding methods for titanium and titanium alloys are: melt welding, brazing, solid-phase bonding, mechanical bonding, etc. Among them, fusion welding is the most widely used, which can be divided into arc welding, electron beam welding, resistance welding, etc., and inert gas is used more.

The weldability of titanium materials depends on the chemical activity and physical properties of the material itself. At room temperature, the surface of titanium has a thin and dense oxide film with stable performance. As the temperature rises, the activity of titanium increases sharply. When the welding temperature is higher than 600℃, the dense oxide film is destroyed, and the gas can diffuse into the metal through the loose oxide film, and hydrogen, oxygen, nitrogen and other elements A violent chemical reaction occurs, and these elements exist in titanium as interstitial impurities, which reduces the performance of the welded joint, especially the plasticity. The presence of hydrogen is often the cause of pores and cold cracks in welding.

Before welding titanium materials, mechanical cleaning or chemical cleaning should be used to thoroughly remove dirt, oxides and gas-rich metal layers on the surface of the workpiece.
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