Metal 3D printing method

Abstract

The invention discloses a metal 3D printing method. The metal 3D printing method comprises the following steps that a forming platform is extended to the highest point of a printing stroke, and metalraw materials are higher than the forming platform; then the metal raw materials are pushed into the forming platform to form a first printing layer; and next printing solution is locally jetted according to print data, so that the metal raw materials at the position needed to be printed are mutually bonded, the forming platform drops by the height of one printing layer after printing of the firstprinting layer is finished, the metal raw materials are pushed in again to form a second printing layer, and the steps are repeated for printing of the second printing layer until printing of a wholeproduct is finished. The metal 3D printing method has the characteristics of being high in printing speed, forming efficiency and precision.

Description

technical field [0001] The invention relates to a metal 3D printing method, which belongs to the field of 3D printing. Background technique [0002] At present, conventional metal 3D printing on the market generally adopts SLM technology. SLM: Selective lasermelting (selective laser melting), is a rapid prototyping technology of metal powder, which can directly form metal parts. However, the use of SLM technology will have the following defects: [0003] 1. The printing speed of SLM is slow, the molding efficiency is low, and the precision of the molded parts is low, and the surface is relatively rough; [0004] 2. The size of SLM equipment is generally relatively large, the price is high, and the maintenance cost is also high, so it is difficult to popularize. [0005] In view of this, the inventor conducted research on this and specially developed a metal 3D printing method, from which this case arose. Contents of the invention [0006] The purpose of the present inve...

AI Technical Summary

Problems solved by technology

[0003] 1. The printing speed of SLM is slow, the molding efficiency is low, and the precision of the molded parts is low, and the surface is relatively rough;

[0004] 2. The volume of SLM equipment is generally relatively large, the price is high, and the post-maintenance cost is also high, so it is difficult to popularize

Images