Closed-Loop Additive Manufacturing Control for Real-Time Error Correction

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Solution Overview

Problem

Additive manufacturing processes are prone to errors due to their large design and parameter space, leading to inefficiencies in material usage, energy consumption, and time, as well as the need for human intervention to correct errors.

Innovation Solution

A computer-implemented method using a trained machine learning model to monitor and predict manufacturing parameters in real-time, generating instructions for corrective action when deviations occur, thereby enabling automated error detection and correction during additive manufacturing processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additive manufacturing processes use large design and parameter space to achieve complex geometries, then manufacturing capability is improved, but error susceptibility increases

Engineering Contradiction:
Improvemanufacturing capabilityVSAvoiderror susceptibility
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a closed-loop control system that continuously monitors manufacturing parameters during additive manufacturing and provides feedback to automatically adjust parameters. This feedback mechanism detects deviations from optimal parameter ranges and triggers corrective actions, thereby maintaining reliability despite the large design and parameter space used for complex geometries

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If manual error assessment and parameter adjustment by experienced operators is used, then error correction accuracy is improved, but labor requirements and process time increase

Engineering Contradiction:
Improveerror correction accuracyVSAvoidprocess time
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system enables self-service by implementing automated error detection and correction capabilities. The closed-loop control system automatically monitors parameters, identifies deviations, and adjusts manufacturing parameters without requiring human intervention. This eliminates the need for experienced operators to manually assess and correct errors, thereby maintaining correction accuracy while significantly reducing process time and labor requirements

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical system of manual operator assessment and adjustment with an automated computational system. Machine learning models and algorithms substitute for human expertise in detecting parameter deviations and determining corrective actions, thereby maintaining high correction accuracy while eliminating the time and labor associated with manual intervention

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

3Reliability

If real-time monitoring and correction of manufacturing parameters is implemented, then manufacturing reliability is improved, but system complexity increases

Engineering Contradiction:
Improvemanufacturing reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a multi-functional integrated system where a single closed-loop control platform performs multiple functions: monitoring manufacturing parameters, detecting deviations using machine learning models, determining corrective actions, and executing parameter adjustments. This universal system consolidates what would otherwise require separate specialized systems, thereby improving manufacturing reliability while managing overall system complexity through integration

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

Data Source

PatentUS20250189939A1Method, apparatus and system for closed-loop control of a manufacturing process
Publication Date: 2025.06.12 CAMBRIDGE ENTERPRISE LTD
  • US20250189939A1 patent drawing
  • US20250189939A1 patent drawing
  • US20250189939A1 patent drawing

AI summary

Broadly speaking, embodiments of the present techniques provide a method, apparatus and system for automatically detecting and correcting errors in manufacturing parameters of a manufacturing process using closed-loop control. Advantageously, the present techniques not only monitor manufacturing parameters but also provide instructions to enable any unacceptable variation in a manufacturing parameter to be corrected during the manufacturing process.