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Method for inhibiting burning loss of magnesium alloy formed by selective laser melting

A technology of selective laser melting and magnesium alloy, which is applied in the direction of additive manufacturing, process efficiency improvement, additive processing, etc., and can solve the problem of Mg element burning loss and so on

Active Publication Date: 2021-10-22
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to provide a method that can determine the process parameter window suitable for forming magnesium alloys by selective laser melting, so as to solve the serious problem of Mg element burning loss in the process of forming magnesium alloys by SLM

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  • Method for inhibiting burning loss of magnesium alloy formed by selective laser melting
  • Method for inhibiting burning loss of magnesium alloy formed by selective laser melting
  • Method for inhibiting burning loss of magnesium alloy formed by selective laser melting

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0025] Such as Figure...

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Abstract

The invention discloses a method for inhibiting burning loss of a magnesium alloy formed by selective laser melting, and belongs to the technical field of metal selective laser melting. The method comprises the following steps: constructing a three-dimensional cloud chart model of a relationship between technological parameters and temperature of the magnesium alloy formed by SLM (selective laser melting) through temperature field simulation; calculating the Mg element burning loss rate at different temperatures in the magnesium alloy SLM forming process by utilizing gas dynamics and thermodynamics theories; and finally establishing a relationship model between the technological parameters and the element burning loss rate through a relationship model between the temperature and the technological parameters and a relationship model between the temperature and the element burning loss rate. According to the method, a technological parameter window of the AZ91D magnesium alloy is optimized through simulation of forming technological parameters and the burning loss rate, and the burning loss behavior of the Mg element in the magnesium alloy SLM forming process is effectively inhibited.

Description

technical field [0001] The invention relates to the technical field of metal selective laser melting, in particular to a method for suppressing burning loss of a magnesium alloy formed by selective laser melting. Background technique [0002] With the significant energy resource issues and the emphasis on environmental protection, more and more light alloy materials such as titanium alloys and magnesium alloys are widely used. The density of magnesium alloy is only 1.74g / cm 3 , its density is 67% of aluminum and 23% of steel. The development level of aerospace is an important manifestation of the country's scientific and technological strength. As the lightest metal structure material, magnesium alloy has high specific strength and rigidity, vibration resistance and The characteristics of good impact resistance and excellent cutting performance have important application value in the aerospace field. At the same time, magnesium alloy materials combine the advantages of degr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/366B22F10/85B33Y10/00B33Y50/02
CPCB22F10/366B22F10/85B33Y10/00B33Y50/02Y02P10/25
Inventor 杨光王琮玮王金业刘雪东崔彦平常宏杰
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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