Laser melting equipment suitable for large 3D printing

Abstract

The invention discloses laser melting equipment suitable for large 3D printing. At least two laser furnace systems are fixedly arranged on a rack. A light transmitting portion right facing forming space is arranged on the upper side of each laser furnace system. A channel communicating with the forming space is arranged on the lower side of each laser furnace system. At least two forming cylindersystems are movably mounted on the rack. The upper ends of the forming cylinder systems can communicate with the channels of the laser furnace systems in a sealed manner. Lifting platforms capable ofbeing aligned to the bottom faces of the inner sides of laser furnaces are formed by pistons of forming cylinders. A powder supply device is further arranged in each laser furnace. Lasers emitted by laser-galvanometer systems movably mounted on a rack can correspondingly shoot into the forming space of the laser furnace-forming cylinder systems through the transparent portions on the upper sides of the laser furnace systems. By means of the laser melting equipment, the function of laser beam scanning can be achieved most sufficiently, the laser forming efficiency is greatly improved, and the use cost of the laser melting forming equipment is reduced.

Description

technical field [0001] The invention relates to a metal 3D printer forming box, in particular to a laser melting device suitable for large-scale 3D printing. Background technique [0002] There is a major disadvantage in the SLM (Selective Laser Melting) process, that is, after each forming (laser is in a working state), a lot of cleaning and preparation work is required. At this time, the laser-galvanometer system is idle in a non-working state. state. At present, SLM equipment is entering the industrial application field from the laboratory, and the forming efficiency needs to be greatly improved, which intensifies the call for improving the efficiency of SLM equipment. [0003] At present, the use of multiple lasers in the laser-forming system with multiple galvanometers—multi-laser-galvanometer system to further increase the forming speed has become one of the trends in the development of SLM. But multi-beam-galvanometer systems (eg, 2-6 laser beams) are expensive comp...

AI Technical Summary

Problems solved by technology

But multi-beam-galvanometer systems (e.g., 2 to 6 laser beams) are expensive components, accounting for about 40% of the total cost

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