Three-dimensional printing method

Abstract

The invention discloses a three-dimensional printing method. According to the main process of the three-dimensional printing method, fused raw materials are placed in a forming area adopted by a three-dimensional printing device, the fused raw materials are accumulated and converted into a printed body in the forming area, and the fused raw materials are accumulated on the basis of the printed body until an object to be printed is formed. The three-dimensional printing method is characterized in that in the process of accumulating the fused raw materials, the portion, where the fused raw materials are to be accumulated, of the printed body is fused or softened through an electromagnetic induction heating manner, and/or the portion, where the fused raw materials are being accumulated, of the printed body is fused or softened. The three-dimensional printing method has the beneficial effects that the interlayer binding force of the printed body is high, and the structural strength of the printed body is high; a detachable auxiliary supporting body can be generated synchronously so that printing of a complicated structure can be achieved; an equipment structure is simple; a large-sized component can be printed; the three-dimensional printing method is suitable for multiple types of materials, and three-dimensional printing of electrically-conducive materials such as metal, metal ceramics and plastics mixed metal power can be achieved; cost is low; and the three-dimensional printing method has the substantial improvement.

Description

technical field [0001] The invention relates to three-dimensional printing technology, in particular to a three-dimensional printing method based on electromagnetic induction heating, which belongs to the technical field of additive manufacturing. 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. Common mainstream 3D printing technologies, such as 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. Currently commercialized technologies for 3D printing of metal materials mainly include Selective Laser Melting (SLM), Electron Beam Melting (EBM) an...

AI Technical Summary

Problems solved by technology

In view of the shortcomings of the above-mentioned SLM, EBM and LENS technologies, many low-cost metal 3D printing technologies using other forming methods have emerged, for example, the application number is 201510789205.7, and the name is "a method for direct 3D printing manufacturing using liquid metal and Device" Chinese patent application, the application number is 201510679764.2, and the name is "a metal 3D printing rapid prototyping equipment", and the application number is 201410206527.X, the name is "extrusion type metal flow 3D printer" Chinese patent applications, but these technologies have pro

Images