Comparative CT Scanning for Component Qualification

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Solution Overview

Problem

Traditional methods for qualifying industrial components are slow, costly, and restrictive, requiring extensive documentation and long lead times for producing reliable spare parts, limiting the number of suppliers and resulting in large, costly inventories.

Innovation Solution

A comparative CT scanning process that uses a CT scanner, jig, processor, and memory to create electronic baseline files from qualified components, allowing subsequent components to be scanned and compared for dimensional and material likeness, generating acceptance signals based on predefined criteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional technical specification and quality program requirements are used to qualify components, then reliability is ensured, but lead time and cost increase significantly

Engineering Contradiction:
Improvecomponent reliabilityVSAvoidqualification lead time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates digital twins (virtual copies) of physical components through CT scanning. These digital models capture the exact geometry, materials, and features of qualified components. Once a component is physically qualified through traditional methods, its digital twin can be used to rapidly evaluate subsequent components without repeating the full qualification process, dramatically reducing lead time while maintaining reliability assurance.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent performs preliminary CT scanning and digital modeling of components during the qualification phase. This advance preparation creates a digital reference library that can be immediately used for rapid evaluation of future components. The preliminary action of creating these digital models eliminates the need for repeated physical testing and documentation, reducing qualification lead time for subsequent components.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If traditional quality assurance programs are implemented, then component quality is ensured, but cost and documentation requirements increase

Engineering Contradiction:
Improvecomponent qualityVSAvoiddocumentation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces extensive physical documentation with digital CT scan models. The three-dimensional digital twins contain all geometric, material, and feature information that would otherwise require pages of documentation. These digital models serve as the quality record, eliminating the need for manual measurement reports, dimensional verification documents, and material certification paperwork, thus reducing documentation complexity while maintaining quality assurance.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent substitutes manual measurement and inspection processes with automated CT scanning. The CT system automatically captures precise dimensional data, material composition, and internal features, replacing manual calipers, micrometers, and visual inspection procedures. This automation reduces the complexity of quality documentation by generating digital records directly from the scan data without requiring manual data entry and processing.

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

3Reliability

If rigorous qualification processes are applied to all components, then reliability is maintained, but productivity and supplier base are limited

Engineering Contradiction:
Improvecomponent reliabilityVSAvoidqualification speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent enables different qualification approaches for different components based on their criticality. Non-critical components can be rapidly evaluated using digital twin comparison with minimal inspection, while only critical components require full traditional qualification. This localized quality approach maintains reliability for essential components while dramatically increasing overall productivity by reducing qualification requirements for less critical parts, thereby expanding the eligible supplier base.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements a tiered qualification approach where components receive partial qualification through digital twin comparison rather than complete traditional qualification. For components that are similar to already-qualified parts, a simplified evaluation process using CT scan data comparison provides sufficient assurance without requiring the full rigour of traditional qualification. This partial action approach increases productivity and expands supplier options while maintaining adequate reliability levels.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This process reduces inventory needs, lowers costs, and expands supplier capabilities by providing a rapid and reliable method for qualifying commercial-grade components, ensuring they meet quality and reliability standards similar to traditionally qualified parts.

Implementation Method 1

Computed Tomography (CT)

Methodology Applied
Scientific EffectX-ray: X-Ray

Implementation Method 2

using CT to scan a representative sample of the existing, already accepted inventory of qualified items to obtain dimensional and materials information from those items

Methodology Applied
Scientific EffectTomography: Tomography

Data Source

PatentUS11781997B2Systems and methods of comparative computed tomography (CT) for qualification of commercial grade items
Publication Date: 2023.10.10 FRENN JON M
  • US11781997B2 patent drawing
  • US11781997B2 patent drawing
  • US11781997B2 patent drawing

AI summary

A method of qualifying physical components using computed tomography (CT) includes obtaining qualified CT data from a CT scanner for at least one qualified physical component. Qualification data is generated based on the qualified CT data, where the qualification data defines a qualification envelope. Candidate CT data is obtained from the CT scanner for a candidate physical component. Comparison data is then generated based on the candidate CT data and the qualification data, where the comparison data indicates whether the candidate CT data is within the qualification envelope defined by the qualification data. An acceptance signal is generated if the comparison data meets acceptance criteria.