Keyhole Laser Beam Welding
Deep penetration laser welding uses high-energy laser beams to create keyholes and produce slender welds at high speed. This prevents distortion and enables precise applications.
Physical-Chemical Operating Principle
Laser beam welding in the deep-penetration effect uses high-energy laser beams that strongly heat the material area. The high power density creates metal vapor capillaries in the base material, leading to a fast melting process and deep penetration of the filler material.
Metallurgical Relevance & Welding Risks
This process allows producing slim welds at high speed with minimal distortion. It is especially suited for precise jobs and complex parts. However, imprecise focusing of the laser can lead to overheating or underheating, which can result in cracks or irregularities in the structure.
Workshop Practice & Instructions
For laser beam welding in the deep-penetration effect, high precision is required. Settings like laser power, focus distance, and travel speed must be set exactly. A typical laser spectrum for steel is in the range of 1030 to 1050 nm with a power of 200 to 400 watts. The welding speed is usually between 1 and 2 mm/s, depending on the material and job size.