Direct Beam Laser Welding
Direct beam laser welding uses a laser source without intermediate steps to melt the joint. It enables precise weld shapes and high energy efficiency.
Physical-Chemical Mechanism of Action
The laser beam is directed directly onto the metal, heating the material points intensively. The molten zone forms through localized heat wave and thermal stresses.
Metallurgical Relevance & Risks in Welding
This process allows high speeds and precise control of melting. It reduces heat transfer to the surrounding area, resulting in lower stresses and minimizing cracks. However, incorrect laser settings can lead to uneven melting or excessive pressure in the joint.
Workshop Practice & Instructions
Use a laser power of 100-500 W for common metals. Keep the laser focus on the joint at a distance of 2-5 mm. Typical welding speed is 1-3 mm/s. Ensure clean air and stable workpiece holding.