3D (three-dimensional) metal printing method

A metal and 3D technology, applied in the direction of improving process efficiency and energy efficiency, can solve problems such as incomplete sintering, powder collapse and pollution, and achieve the effect of ensuring utilization efficiency, simple system equipment, and convenient use

Inactive Publication Date: 2014-12-24
徐海锋
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is how to realize the printing of metal powder like ink, solve a series of problems such as powder collapsing and polluting the system in electron beam melting technology, and solve the problems of incomplete sintering in speed control in laser sintering technology.

Method used

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Embodiment Construction

[0020] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] In order to solve the problem of how to realize the printing of metal powder like ink, and the existing laser sintering molding may not be complete, the metal powder in the electron beam melting technology is easy to collapse and the equipment is complicated. Such as figure 1 and figure 2 As shown, the present invention provides a kind of 3D metal printing method, and described method is based on the printing method (or adopting other methods that utilize oscillation (or resonance) electric energy) similar to the ink flowing out of a ballpoint pen, and the rolling bearing rolling on the surface, combined with current or The voltage oscillating (or resonant) circuit realizes the rapid melting and fine printing ...

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Abstract

The invention relates to an implementation method of a 3D (three-dimensional) metal printing system, in particular to a 3D metal printing method, which belongs to the technical field of 3D metal printing. In combination with a current or voltage oscillation (or resonance) circuit, the 3D metal printing method adopts a printing method like a ball pen discharging ink and a rolling bearing rolling on a surface to leave an ink print to implement the fast melting of metal powder and fine printing; because a printing head of the 3D metal printing method is a high-temperature part, which still can keep constant high temperature on a printed object like an iron, the problem that metal does not completely melt does not exist, and because of the distance of heat transfer, the printing head also naturally cannot melt the printed object surface, thus truly realizing 3D printing like painting and iron soldering on the printed object surface. Consequently, the method does not have the problem that melted liquid metal is cooled into a drop-like solid once the melted liquid metal gets out of the printing head, as well as the problem of powdery pits which is caused by the incomplete sintering of part of the printed object in the process of laser sintering formation.

Description

technical field [0001] The invention belongs to the technical field of 3D metal printing, and in particular relates to a 3D metal printing method. Background technique [0002] Among the current mainstream or widely used 3D metal printing technologies, the following technologies are usually used: [0003] One is laser sintering molding technology. This technology may have the problem of incomplete sintering of local metal powder, resulting in voids or defects on the surface of the printed object. For this reason, it is difficult to achieve a relatively fast speed. In addition, high-power laser systems also require cooling, which leads to inefficient energy utilization. [0004] The second is the electron beam melting technology. This 3D metal printing method needs a vacuum environment to prevent the electron beam from scattering, and the metal powder is easily blown away by the air flow, collapsing and even polluting the system itself. In addition, the control of the elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105
CPCY02P10/25
Inventor 徐荣峰徐海锋卢娣娣
Owner 徐海锋
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