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Laser rapid forming preparation method of metal high-flux sample

A laser rapid prototyping and high-throughput technology, applied in the direction of additive manufacturing, energy efficiency improvement, process efficiency improvement, etc., can solve the problems of inaccurate control of component variables, low efficiency, long development cycle, etc., and achieve rapid optimization of process parameters , Improve research efficiency, improve the effect of research and development efficiency

Pending Publication Date: 2022-07-08
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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AI Technical Summary

Problems solved by technology

[0004] At present, material preparation and analysis based on high-throughput thinking have been applied to many fields, but in the field of laser rapid prototyping metal material preparation, the adjustment of material composition and process parameters has not achieved full-scale automatic control, and the preparation process often requires manual adjustment intervention. Modification of process parameters, modification of powder feeding parameters, adjustment of sample position, etc. make it impossible to accurately control the composition variables in high-throughput material composition experiments, and also lead to long development cycles and low efficiency.

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  • Laser rapid forming preparation method of metal high-flux sample
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  • Laser rapid forming preparation method of metal high-flux sample

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preparation example Construction

[0026] The invention provides a laser rapid prototyping preparation method for metal high-throughput samples, comprising the following steps:

[0027] S1. Determine the variables of the metal high-throughput samples, and design the powder feeding parameters and forming process of each sample according to the variables of the metal high-throughput samples; the variables of the metal high-throughput samples include material components and / or process parameters ;

[0028] S2. Add a multi-channel powder feeding device and connect it to the laser rapid prototyping system, and establish a communication connection between the newly added powder feeding device and the original powder feeding device in the laser rapid prototyping system, so that the machine tool in the laser rapid prototyping system is connected. The communication protocol of the numerical control system regulates each powder feeding equipment;

[0029] S3, setting the program control language of the newly added powde...

Embodiment 1

[0047] Using high-throughput laser rapid prototyping technology to prepare Fe-Cr-Al ferritic steel, including the following steps:

[0048] S1. Determine the variable of the high-throughput laser rapid prototyping experiment in this embodiment as the material composition, and the material composition is Fe, Cr and Al; calculate the powder feeding amount of each metal powder through the powder feeding tray: the powder feeding amount of Fe is 10.95g·min -1 ·r -1 , Cr powder feeding amount is 3.7g·min -1 ·r -1 , Al powder feeding amount is 1.04g·min -1 ·r -1 , the composition variable is Al, and the number of samples is 6; the rotation speed of the Fe, Cr and Al powder feeding trays and the corresponding mass fractions are calculated (as shown in Table 1); the powder carrier gas flow rate is all set to 2.8L / min .

[0049] Table 1 Fe, Cr and Al powder feeder speed and mass fraction

[0050]

[0051] S2. The laser rapid prototyping system used is a synchronous powder feed...

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Abstract

The invention provides a laser rapid prototyping preparation method of a metal high-flux sample, and belongs to the technical field of high-energy beam rapid prototyping preparation materials. According to the method provided by the invention, through equipment upgrading and software program updating, full-program control of multiple paths of powder feeding cylinders is realized, and process parameters and / or material components of high-throughput material design are / is written into a path program of a single sample as variables; the position of each sample is determined by writing codes, and the path program of each sample is sequentially operated by using the codes, so that the rapid laser forming process can be controlled in a full-flow and full-automatic manner by operating a program file, the high-throughput material preparation requirement of completing large-batch samples at a time is met, rapid screening of alloy component proportions is realized, and the production efficiency is improved. And rapid optimization of material preparation process parameters is realized. Compared with a traditional manual control method, the method for preparing the metal high-throughput sample is more accurate in material component regulation and control, the automation degree of the preparation process is high, and the research and development efficiency is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of high-energy beam rapid prototyping preparation materials, in particular to a laser rapid prototyping preparation method for metal high-throughput samples. Background technique [0002] With the rapid development of high-end major equipment fields such as energy, aerospace, and national defense, the application environment of materials is becoming more and more harsh, and higher requirements are placed on the design, manufacture and performance of metal materials. The traditional method to develop new alloy composition ratio and process parameters takes a long time, and the research and development cost is high, which cannot meet the needs of rapid development of new materials. In recent years, high-throughput sample preparation based on the idea of ​​material genome has attracted extensive attention of researchers. This method can prepare a large number of material samples containing different components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/28B22F10/85B33Y10/00B33Y50/02
CPCB22F10/28B22F10/85B33Y10/00B33Y50/02Y02P10/25
Inventor 杨晓珊乐国敏周昱昭王斗刘学李晋锋季亚奇任聪聪
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS