Titanium Laser Beam Keyhole Welding
Titanium laser beam deep welding uses a high-energy laser beam to produce narrow welds in titanium. The vapor capillary ensures deep penetration and minimizes thermal distortion. A gap-free inert gas shielding is essential because titanium reacts strongly with oxygen.
Physical-chemical mechanism of action
A laser beam is directed at the titanium and creates a strong local hot spot. The keyhole effect allows deep penetration of the laser into the material, making narrow welds possible. The process is very precise and avoids thermal distortion that can occur with conventional welding methods.
Metallurgical relevance & risks when welding
Titanium has a high affinity for oxygen and reacts strongly with oxygen. Without complete inert gas shielding, pores and cracks form in the weld, which impairs mechanical properties. Insufficient shielding can also lead to corrosion.
Workshop practice & instructions
Use a high-energy laser beam with keyhole effect for deep welding of titanium. Ensure that the inert gas shielding is complete and that an oxygen concentration below 10 ppm is achieved. The welds should be at least 2 mm wide to ensure sufficient mechanical strength.