Thermal treatment method of 3D printing thin-walled part with AlSi10Mg as substrate and 3D printing thin-walled part

A heat treatment method and 3D printing technology, applied in the field of aluminum alloy heat treatment, can solve the problems of large deformation of thin-walled parts, and achieve the effects of simple and easy heat treatment process, guaranteed product quality, and small changes

Active Publication Date: 2016-04-06
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a heat treatment method for 3D printed thin-walled parts based on AlSi10Mg, so as to solve the problem of large deformation of the above-mentioned thin-walled parts at different temperatures

Method used

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  • Thermal treatment method of 3D printing thin-walled part with AlSi10Mg as substrate and 3D printing thin-walled part
  • Thermal treatment method of 3D printing thin-walled part with AlSi10Mg as substrate and 3D printing thin-walled part
  • Thermal treatment method of 3D printing thin-walled part with AlSi10Mg as substrate and 3D printing thin-walled part

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Embodiment 1

[0023] The heat treatment method of the 3D printing thin-walled parts with AlSi10Mg as the substrate of the present embodiment comprises the following steps:

[0024] 1) Anneal the AlSi10Mg thin-walled parts obtained by 3D printing. The annealing temperature is 260°C, the holding time is 4h, and air cooling;

[0025] 2) The thin-walled parts are subjected to high and low temperature cycle treatment in the high and low temperature range of high temperature of 160 °C and low temperature of -50 °C; first, the thin-walled parts are heated to 160 °C, kept for 4 hours, and cooled at a rate of 3 °C / min to -50°C, hold for 2 hours, then raise the temperature to 160°C at a rate of 3°C / min, hold for 4 hours, and complete one cycle; continue for 6 cycles, air-cool, and you are ready.

Embodiment 2

[0027] The heat treatment method of the 3D printing thin-walled parts with AlSi10Mg as the substrate of the present embodiment comprises the following steps:

[0028] 1) Anneal the AlSi10Mg thin-walled parts obtained by 3D printing. The annealing temperature is 360°C, the holding time is 1h, and air cooling;

[0029] 2) The thin-walled parts are subjected to high and low temperature cycle treatment in the high and low temperature range of high temperature of 160 °C and low temperature of -50 °C; first, the thin-walled parts are heated to 190 °C, kept for 2 hours, and cooled at a rate of 10 °C / min to -60°C, hold for 2 hours, then raise the temperature to 190°C at a rate of 10°C / min, hold for 2 hours, and complete a cycle; continue for 7 cycles, air-cool, and you are ready.

Embodiment 3

[0031] The heat treatment method of the 3D printing thin-walled parts with AlSi10Mg as the substrate of the present embodiment comprises the following steps:

[0032] 1) Anneal the AlSi10Mg thin-walled parts obtained by 3D printing. The annealing temperature is 320°C, the holding time is 3h, and air cooling;

[0033] 2) The thin-walled parts are subjected to high and low temperature cycle treatment in the high and low temperature range of high temperature of 180 °C and low temperature of -60 °C; firstly, the thin-walled parts are heated to 180 °C, kept for 2 hours, and cooled at a rate of 3 °C / min to -60°C, hold for 3 hours, then raise the temperature to 180°C at a rate of 3°C / min, hold for 2 hours, and complete one cycle; continue for 5 cycles, air-cool, and you are ready.

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Abstract

The invention discloses a thermal treatment method of a 3D printing thin-walled part with AlSi10Mg as a substrate and the 3D printing thin-walled part and belongs to the technical field of aluminum alloy thermal treatment. The thermal treatment method includes the steps that the thin-walled part is annealed, and then high-low-temperature circulating treatment is performed in the high-temperature interval with the high-temperature ranging from 160 DEG C to 190 DEG C and the low-temperature interval with the low-temperature ranging from -60 DEG C to -50 DEG C. By the adoption of the method, through annealing treatment and high-low-temperature circulating treatment, the inner structure of the thin-walled part is more even and more stable, the inner stress of the part is reduced, the stability of the size of the part at different temperatures is improved, product quality is guaranteed, and the change of the size of the part is minimum under different temperature conditions. The 3D printing thin-walled part obtained through the method can be used for products such as a helmet displayer.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of aluminum alloys, and in particular relates to a heat treatment method of a 3D printed thin-walled part with AlSi10Mg as a base and a 3D printed thin-walled part. Background technique [0002] AlSi10Mg is a cast aluminum alloy, which has the characteristics of good casting performance, no tendency of hot cracking, high air tightness, small linear shrinkage and good corrosion resistance. It has been widely used in the fields of aviation, instrumentation and general machinery. 3D printing is a technology that uses sticky materials such as powdered metal and plastic to construct objects by layer-by-layer printing based on digital model files. 3D printing manufacturing technology has the characteristics of short processing cycle and rapid prototyping. At the same time, it has obvious advantages in manufacturing thin-walled parts with complex structures; this technology has been widely used in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/043
CPCC22F1/043
Inventor 孙自南董晓王战胜吴晓鸣张磊
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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