Laser metal deposition primary dendrite spacing prediction method and system

A dendrite spacing and prediction method technology, applied in neural learning methods, genetic rules, biological neural network models, etc., can solve problems such as low accuracy, time-consuming, and inability to fully achieve accurate tissue prediction, and achieve high accuracy and prediction Accurate results and good timeliness

A dendrite spacing and prediction method technology, applied in neural learning methods, genetic rules, biological neural network models, etc., can solve problems such as low accuracy, time-consuming, and inability to fully achieve accurate tissue prediction, and achieve high accuracy and prediction Accurate results and good timeliness

CN112949208BActive Publication Date: 2022-02-18TSINGHUA UNIV
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  • Laser metal deposition primary dendrite spacing prediction method and system
  • Laser metal deposition primary dendrite spacing prediction method and system
  • Laser metal deposition primary dendrite spacing prediction method and system

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] The embodiment of the present invention discloses a method for predicting primary dendrite spacing in laser metal deposition, see figure 1 ,include:

[0036] S1: collecting laser characteristic data in the laser metal deposition process, the laser characteristic data including laser power and laser scanning speed;

[0037] Among them, laser power and laser scanning speed are the two ...

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Abstract

The present invention provides a method and system for predicting primary dendrite spacing in laser metal deposition, wherein the prediction method includes: collecting laser characteristic data during laser metal deposition, the laser characteristic data including laser power and laser scanning speed; The feature data is input into the spacing prediction model, and the primary dendrite spacing prediction result is output; wherein, the spacing prediction model is obtained after training based on laser characteristic sample data and a predetermined primary dendrite spacing label. In the present invention, the primary dendrite spacing prediction data can be obtained by inputting the laser power and laser scanning speed into the spacing prediction model. The spacing prediction model is obtained after training based on the laser characteristic sample data and the predetermined primary dendrite spacing label. The invention provides The method has high precision and good timeliness, which is conducive to realizing real-time control of microstructure in industrial applications.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a method and system for predicting primary dendrite spacing in laser metal deposition. Background technique [0002] Laser metal deposition technology is an advanced manufacturing technology developed in recent years. Based on the principle of "layered manufacturing and discrete stacking", this technology can directly and rapidly form parts of any shape and size, effectively reducing the processing cost and production cycle of parts. During the laser metal deposition process, high-quality repair and manufacture of single crystal / directionally solidified nickel-based superalloy parts can be achieved through the regulation of the laser metal deposition process. [0003] The optimization and control of process parameters is still a difficult problem in the industrial application of laser metal deposition, especially for single crystal / directionally solidified nickel-based superalloy...

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Application Information

Patent Timeline
18 Feb 2022
Publication
CN112949208B
IPC
G06F30/27; G06N3/04; G06N3/08; G06N3/12; B22F10/85; B22F10/38; B33Y50/02; G06F111/06
CPC
G06F30/27; G06N3/126; G06N3/08; B33Y50/02; G06F2111/06; G06N3/045
Inventors
常保华; 刘冠