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Method for preparing magnesium alloy part by utilizing 3D printing

A 3D printing and magnesium alloy technology, applied in the field of alloy forming and manufacturing, can solve the problems of magnesium alloy density, low melting and boiling point, flying magnesium alloy dust, affecting final performance, etc., to improve tensile plasticity and yield strength performance, quenching time The effect of optimizing and eliminating defects

Pending Publication Date: 2020-07-03
浙江华科三维科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because magnesium alloys are prone to defects such as porosity, slag inclusions, cracks, and pores during casting, which seriously affect the final properties of the material after processing and forming, hindering its wide application, and the rapid development of additive manufacturing technology has become an important factor for the development of magnesium alloy parts. preparation offers new avenues
[0003] Due to the low density and boiling point of magnesium alloys, there are many problems to be overcome in the process of 3D printing of magnesium alloys. In view of the problem of dust flying in magnesium alloys during the forming process, the Chinese invention patent "a kind of magnesium alloy rapid prototyping The powder falling device and its application” discloses a powder falling device for magnesium alloy rapid prototyping, which relates to the technical field of auxiliary devices for 3D printing equipment, and its purpose is to provide a powder falling device suitable for 3D printing of magnesium alloy powder

Method used

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  • Method for preparing magnesium alloy part by utilizing 3D printing
  • Method for preparing magnesium alloy part by utilizing 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (a) using a selective laser melting process to prepare magnesium alloy parts to be processed, which includes the following components, Zn: 5%, Zr: 0.4%, impurities: 0.007%, and the balance is Mg;

[0034] (b) Put the magnesium alloy in a high-temperature box-type furnace, raise the temperature of the high-temperature box-type furnace to 300°C at a rate of 480°C / h under a pure argon atmosphere and keep it warm for 12 hours, and then transfer it to water within 10s~20s Quenching for 5 minutes;

[0035] (c) keeping the quenched parts at 100° C. for 48 hours, and then cooling to room temperature to obtain magnesium alloy parts.

Embodiment 2

[0037] (a) using a selective laser melting process to prepare magnesium alloy parts to be processed, which includes the following components, Zn: 5%, Zr: 0.4%, impurities: 0.007%, and the balance is Mg;

[0038] (b) Put the magnesium alloy in a high-temperature box-type furnace, raise the temperature of the high-temperature box-type furnace to 400°C at a heating rate of 480°C / h under a pure argon atmosphere and keep it for 9 hours, and then transfer it to water within 10s~20s Quenching for 5 minutes;

[0039] (c) keeping the quenched parts at 100° C. for 48 hours, and then cooling to room temperature to obtain magnesium alloy parts.

Embodiment 3

[0041] (a) using a selective laser melting process to prepare magnesium alloy parts to be processed, which includes the following components, Zn: 5%, Zr: 0.4%, impurities: 0.007%, and the balance is Mg;

[0042] (b) Put the magnesium alloy in a high-temperature box-type furnace, raise the temperature of the high-temperature box-type furnace to 500°C at a rate of 480°C / h under a pure argon atmosphere and keep it warm for 6 hours, and then transfer it to water within 10s~20s Quenching for 5 minutes;

[0043] (c) keeping the quenched parts at 100° C. for 48 hours, and then cooling to room temperature to obtain magnesium alloy parts.

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Abstract

The invention discloses a method for preparing a magnesium alloy part by utilizing 3D printing. The method comprises the following steps that a to-be-processed part of a magnesium alloy is prepared byadopting a selective laser melting technology; the to-be-processed part of the magnesium alloy is heated to 400-800 DEG C under an inert atmosphere, heat preservation is carried out for 3-5 h, and then the to-be-processed part is transferred to water for quenching; and the quenched part is subjected to heat preservation at the temperature of 80-150 DEG C for the preset time and then cooled to theroom temperature, so that the magnesium alloy part is obtained. The magnesium alloy part is prepared by the selective laser melting technology, so that more diversified product shapes can be produced, and the application range of the magnesium alloy is wider.

Description

technical field [0001] The invention belongs to the technical field related to alloy forming and manufacturing, and more specifically relates to a method for preparing magnesium alloy parts by 3D printing. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. Its characteristics are: low density (about 1.8g / cm3 magnesium alloy), high specific strength, large specific elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, and corrosion resistance of organic matter and alkali it is good. The main alloying elements are aluminum, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium. Magnesium-aluminum alloys are currently the most widely used, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. Mainly used in aviation, aerospace, transportation, chemical industry, rocket and other industrial sectors. It is the lightest metal a...

Claims

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Application Information

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IPC IPC(8): B22F3/105C22C1/04C22C23/04C22F1/02C22F1/06B22F3/24B33Y10/00B33Y70/00
CPCC22C1/0408C22C23/04B22F3/24C22F1/02C22F1/002C22F1/06B33Y10/00B33Y70/00B22F2003/248B22F10/00B22F10/36B22F10/28B22F10/64B22F10/366Y02P10/25
Inventor 周燕甘杰文世峰史玉升王卫陈伟陈健郑立
Owner 浙江华科三维科技有限公司
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