SLM (Selective Laser Melting) 3D printing technology, that is, selective laser melting technology, is a metal 3D printing process widely used in the industrial field. The following is a detailed introduction:

Technical principle: SLM technology uses high-intensity laser as the energy source, controls the shape and intensity of the laser beam through the CNC system, melts and solidifies the metal powder layer by layer on the metal powder bed, and converts the three-dimensional geometric structure in the digital model into a physical product.

Process flow: First, the metal powder is evenly spread on the printing platform. The laser selectively melts the powder according to the model slice data to form a solidified layer. Then the printing platform drops a layer thickness, spreads the powder again, and the laser continues to melt the powder. This is repeated, stacked layer by layer, and finally the three-dimensional parts are printed.

Features of SLM printing products

High precision: The diameter of the laser beam can be controlled at the micron level, which can accurately melt the metal powder and produce parts with high dimensional accuracy, which can meet the needs of many high-precision industrial applications.

Strong ability to manufacture complex structures: It can realize integrated molding of complex geometric shapes (such as honeycomb structures, internal flow channels, and topology optimization frames), breaking through the limitations of tools or molds in traditional processing, and can manufacture parts that are difficult to process with traditional processes.

Excellent material properties: Metal powder forms a dense metallurgical bond during rapid melting and solidification, and the mechanical properties of printed parts are clos