AI Sheet Metal Design Optimizability Evaluation

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Solution Overview

Problem

Existing methods for designing sheet metal components often lack efficiency in identifying optimization potential, leading to unnecessary resource expenditure on optimization efforts that may not yield significant benefits.

Innovation Solution

A computer-implemented method that reads CAD data from an initial sheet metal component design, parameterizes the data, and uses artificial intelligence to evaluate the design's optimizability based on extracted parameter values, thereby determining if optimization is warranted and feasible.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If optimization is performed on all sheet metal component designs, then manufacturing efficiency and quality are improved, but time and computational resources are wasted on designs that cannot be significantly optimized

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidtime for optimization efforts
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using AI to evaluate and predict the optimization potential of a sheet metal component design before actually performing the optimization. The system analyzes CAD data, extracts features, and predicts whether the design has high optimization potential, thereby preparing the evaluation before the actual optimization process to avoid wasting time on designs that cannot be significantly improved.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by creating a closed-loop system where the AI evaluation results feed back into the decision-making process. The system provides feedback on whether a design is suitable for optimization, and this feedback information is used to determine whether to proceed with the full optimization process, thereby avoiding unnecessary resource expenditure on designs with low optimization potential.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If additional experts are consulted for optimization, then design quality is improved, but production costs increase

Engineering Contradiction:
Improvedesign qualityVSAvoidproduction costs
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent applies self-service by enabling the system to automatically evaluate and predict optimization potential without requiring human experts for every assessment. The AI system autonomously analyzes CAD data, extracts relevant features, and predicts optimization suitability, thereby reducing the need for additional expert consultations while maintaining consistent and reliable evaluation quality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical system of human expert consultation with an automated AI-based evaluation system. Instead of relying on manual analysis by additional experts, the system uses machine learning models that have been trained to identify optimization patterns in sheet metal component designs, thereby reducing costs while maintaining or improving evaluation consistency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If AI evaluation is performed on all designs, then resource allocation is optimized, but computational complexity and data processing requirements increase

Engineering Contradiction:
Improveresource allocation efficiencyVSAvoidcomputational complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies the extraction principle by identifying and extracting only the most relevant features from the complex CAD data. Instead of processing all geometric details and metadata, the system extracts key features such as number of bends, welds, contours, and other critical parameters that directly impact optimization potential, thereby reducing computational complexity while maintaining evaluation accuracy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements segmentation by dividing the complex evaluation process into distinct modular steps: reading CAD data, converting to suitable format, extracting features, predicting optimization potential, and providing recommendations. This segmentation allows each step to be optimized independently and reduces overall computational complexity by processing data in manageable chunks rather than attempting to analyze everything at once.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4172840B1Method for controlling the production of a sheet metal component and method for manufacturing a sheet metal component or several different sheet metal components
Publication Date: 2025.06.18 TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
  • EP4172840B1 patent drawingFigure 1
  • EP4172840B1 patent drawingFigure 2
  • EP4172840B1 patent drawingFigure 3

AI summary

The invention relates to a computer-implemented method for controlling the production of a sheet metal component, the method comprising the following steps: A) reading (102) CAD data of an initial design of the sheet metal component, C) parameterizing (106) the CAD data so that parameter values of the CAD data are obtained, D) evaluating (108) the optimizability of the initial design of the sheet metal component by means of artificial intelligence on the basis of the parameter values of the CAD data, and outputting (110) an evaluation result. The invention also relates to a computer program comprising programming commands which, during the execution of the computer program by a computer, prompt said computer to carry out the method according to one of the preceding claims.