Selective Laser Melting of Metals
Selective laser melting is a manufacturing process where metal powder is melted by a focused laser. It is used to produce complex parts with high density.
Physical-Chemical Mechanism of Action
A focused laser beam provides a local heat source on the metal powder, which melts it completely. The melting processes are selective and controlled, so only certain areas of the component are melted.
Metallurgical Relevance & Risks in Welding
The selection of laser power and powder material influences the density and structure of the manufactured part. Too high energy can lead to overheating and distortions, while too low energy leads to incomplete melting and missing densities.
Workshop Practice & Operating Instructions
Use a focused laser beam with a power of 100-500 watts. Make sure the powder is stored in a dry environment and the melting time per layer is between 2 and 3 seconds. Monitor the temperature and density of the manufactured part continuously.