Three-dimensional printing equipment and method

Abstract

The invention discloses three-dimensional printing equipment and a method. The three-dimensional printing equipment comprises a metal raw material conveying device, a high-frequency magnetic field preheating device, a position driving device, a laser control device, a printing head, a sensor set and a controller; the high-frequency magnetic field preheating device comprises an electromagnetic induction coil; the metal raw material conveying device conveys metal raw materials into a heating cavity formed by the electromagnetic induction coil in the printing head for preheating of the metal raw materials; the position driving device conveys the printing head to a correct pixel position; preheated metal is output to the correct pixel position from a raw material output port of the printing head; the laser printing device performs laser heating on the preheated metal in the correct pixel position to realize three-dimensional laser printing; and the controller controls the printing process in real time according to state and position information detected by the sensor set. The equipment or the method can reduce the production cost when guaranteeing the printing precision.

Description

technical field [0001] The invention relates to the field of three-dimensional printing, in particular to a three-dimensional printing device and method. Background technique [0002] 3D printing technology first originated in the United States at the end of the 19th century, and was perfected and commercialized in Japan and the United States until the 1970s and 1980s. Now common mainstream 3D printing technologies include stereolithography (StereoLithography Apparatus, SLA), fused deposition manufacturing (Fused Deposition Modeling, FDM), selective laser sintering (Selecting Laser Sintering, SLS), three-dimensional powder bonding (Three DimensionalPrinting and Gluing, 3DP), was commercialized in the United States in the 1980s and 1990s. Among them, the technology of three-dimensional printing of metal materials mainly includes selective laser melting technology (Selective Laser Melting, SLM) and electron beam melting technology (Electron Beam Melting, EBM). The disadvanta...

AI Technical Summary

Problems solved by technology

Among them, the technology of three-dimensional printing of metal materials mainly includes selective laser melting technology (Selective Laser Melting, SLM) and electron beam melting technology (Electron Beam Melting, EBM). The disadvantage of low material density of parts; in view of the above-mentioned shortcomings of SLM and EBM technology, there are also many low-cost metal 3D printing technologies using other molding methods, but these technologies have the problem of low molding accuracy

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