Metal laser selective melting method

A laser selective melting and metal technology, which is applied in the direction of process efficiency improvement, additive manufacturing, additive processing, etc., can solve the problem of surface roughness of part forming, and achieve the effect of ensuring surface refinement, surface quality and forming quality

Inactive Publication Date: 2016-06-15
ANHUI TUO BAO ADDITIVE MFG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a metal laser selective melting method, which is used to solve the problem in the prior art that the forming surface of the part is easy to be rough when the forming speed is increased

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Embodiment Construction

[0018] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] see Figure 1 to Figure 2 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same ti...

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Abstract

The invention provides a metal laser selective melting method. The metal laser selective melting method is characterized in that two kinds of lasers with different powers are adopted for conducting laser melting on metal powder zones needling to be melted; during melting, the lasers with the low power firstly conduct scanning on outline boundaries of the metal powder zones; then the lasers with the high power conduct scanning on internal zones of the metal powder zones; and during scanning, the thickness of a metal powder layer obtained by scanning with the lasers with the high power one time is integral multiples of the thickness of the metal powder layer obtained by scanning with the lasers with the low power one time. According to the metal laser selective melting method, the efficiency of the laser molding process is improved, and meanwhile, the surface quality of a metal part is guaranteed; and in other words, while the stability and the molding quality of the overall process are guaranteed, the building speed of metal laser selective melting equipment is improved as a whole.

Description

technical field [0001] The invention relates to the technical field of metal laser selective melting rapid prototyping, in particular to a metal laser selective melting method. Background technique [0002] In the laser selective melting process, after the metal powder is paved, the laser melts it according to the specified path. After the metal powder material is cooled, the final metal solid body is formed. Usually, laser selective melting equipment uses a single fixed power laser beam to melt metal powder. The whole process mainly goes through "powder spreading-laser melting powder-metal solidification-laying a layer of powder-laser melting powder". In this process, the construction speed of the equipment mainly depends on the powder spreading speed of the equipment and the volume of powder melted by the laser per unit time. In the case of fixed powder spreading speed, increasing the speed of laser melting powder is an important way to increase the forming speed of laser...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00
CPCB22F10/00B22F10/28B22F10/366B22F12/45Y02P10/25
Inventor 陈悦昶郑增韩李松朱俊王士学王寻寻刘晴云王士荣
Owner ANHUI TUO BAO ADDITIVE MFG TECH CO LTD
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