Aluminum Microstructure Prediction Across Multi-Step Processing

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Solution Overview

Problem

Current methods for predicting the microstructure of aluminum in industrial processes are inaccurate and fail to account for the complexity of multiple metallurgical phenomena occurring concurrently across multiple process steps, leading to costly trial-and-error adjustments in processing conditions.

Innovation Solution

A microstructure calculating apparatus that integrates processing conditions and microstructure information across multiple steps, using calculation modules to predict changes in metallurgical phenomena over time, allowing for the accurate prediction of aluminum microstructure by simulating thermo-mechanical processing conditions and microstructure evolution across various process steps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional prediction methods are used for aluminum microstructure, then the manufacturing process is simpler, but the prediction accuracy is insufficient

Engineering Contradiction:
Improvemicrostructure prediction accuracyVSAvoidcalculation system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The microstructure prediction system is segmented into multiple independent calculation modules, each responsible for a specific metallurgical phenomenon (precipitation, solid solution, grain growth, etc.). This allows the complex prediction task to be divided into manageable components that can be executed sequentially or in parallel, improving accuracy while maintaining computational feasibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The microstructure prediction apparatus is designed as a universal system that can handle multiple metallurgical phenomena through a common framework. The system integrates various calculation modules that can process different types of microstructural changes (precipitation, dissolution, phase transformations) using unified data structures and processing logic, making the complex system applicable to diverse aluminum alloy processing scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple metallurgical phenomena are considered simultaneously, then the prediction accuracy improves, but the calculation complexity increases

Engineering Contradiction:
Improvemicrostructure prediction accuracyVSAvoidcalculation module complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Each metallurgical phenomenon is modeled by a separate calculation module that independently processes its specific kinetics and thermodynamics. This segmentation allows complex multi-phenomenon interactions to be handled through modular computation, where each module contributes its specific effects to the overall microstructure evolution without requiring a single monolithic complex model.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system merges multiple calculation modules that each handle specific metallurgical phenomena into a unified microstructure prediction framework. The modules are combined through a common data structure that tracks microstructural parameters across all phenomena, allowing simultaneous consideration of precipitation, solid solution, grain growth, and other effects through integrated computation.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If detailed thermo-mechanical processing conditions are simulated, then the microstructure prediction accuracy improves, but the computational time increases

Engineering Contradiction:
Improvemicrostructure prediction accuracyVSAvoidcomputational time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary calculations by pre-defining calculation modules for each metallurgical phenomenon and preparing the computational framework before actual microstructure prediction. This preliminary setup includes establishing data structures, defining kinetic parameters, and configuring the integration algorithm, which reduces computational overhead during the actual prediction process while maintaining high accuracy.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The calculation modules continuously track microstructure evolution throughout the entire thermo-mechanical processing sequence without interruption. The system maintains continuous computation of microstructural parameters from initial state through all processing steps to final state, ensuring that no critical transitions are missed and enabling accurate prediction of cumulative microstructural changes efficiency.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS11573552B2Microstructure calculating apparatus
Publication Date: 2023.02.07 UACJ CORP
  • US11573552B2 patent drawing
  • US11573552B2 patent drawing
  • US11573552B2 patent drawing

AI summary

An object is to predict a microstructure of Al in an industrial process more accurately than conventional techniques. In an information processor (1), an inter-step information integration section supplies a PC(i) and an MS(i, 0) to each i-th step calculating section included in a step calculating section. Each i-th step calculating section supplies an MS(i, t) and a TMP(i, t) to a microstructure calculating section and thereby causes the microstructure calculating section to find an MS(i, tfi), and supplies the MS(i, tfi) to the inter-step information integration section (11). The inter-step information integration section (11) sets, as an MS(i+1, 0), the MS(i, tfi) received from the i-th step calculating section.