Virtual Weldment Inspection for Repeatable Defect Assessment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional welding training methods rely on destructive and non-destructive tests, which are costly, time-consuming, and limited, with a gap between creating a weldment and assessing its quality, particularly in determining defects and discontinuities.

Innovation Solution

A virtual reality simulation system that allows for the simulation of both destructive and non-destructive testing and inspection of virtual weldments, enabling repeated testing and analysis using a programmable processor-based system with spatial tracking and display capabilities, simulating real-time welding scenarios and defect characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If destructive tests are performed on weldments, then quality assessment is achieved, but the weldment is destroyed and can only be tested once

Engineering Contradiction:
Improvequality assessment accuracyVSAvoidtesting repeatability
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent creates a virtual copy of the physical weldment in a virtual reality environment. This virtual weldment contains all the defect and discontinuity characteristics of the original, allowing unlimited repeated testing and inspection without damaging the physical weldment. The virtual model serves as a digital twin that can be subjected to multiple destructive and non-destructive tests simultaneously.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent separates the testing and inspection functions from the physical weldment by creating independent virtual test environments. Multiple different tests (destructive and non-destructive) can be performed on the virtual weldment simultaneously or sequentially without interfering with the physical specimen, enabling comprehensive quality assessment without consuming the original weldment.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If non-destructive tests such as X-ray radiographic testing are performed, then weldment quality is assessed, but expensive test equipment is required and the process is time-consuming

Engineering Contradiction:
Improvedefect detection accuracyVSAvoidtest equipment cost and complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces expensive physical non-destructive testing equipment with a virtual reality-based inspection system. The virtual weldment can be inspected using simulated X-ray, ultrasonic, and other non-destructive methods through software algorithms, eliminating the need for costly physical test equipment while maintaining detection accuracy. The virtual environment allows multiple inspection methods to be applied simultaneously.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent substitutes physical mechanical testing equipment with computational models and virtual reality software. Instead of using actual X-ray machines, ultrasonic devices, or other complex physical instrumentation, the system uses computer-based simulations and image processing algorithms to perform equivalent inspections on the virtual weldment, significantly reducing equipment costs and complexity.

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

3Reliability

If traditional welding inspection training is conducted using physical weldments, then practical inspection skills are developed, but the process is costly and time-consuming

Engineering Contradiction:
Improvetraining effectivenessVSAvoidtraining efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent uses virtual weldments as digital copies for training purposes, allowing students to practice inspection skills on multiple virtual specimens without consuming physical materials. Trainees can repeatedly inspect the same virtual weldment from different angles and using different methods, accelerating skill development while reducing the need for extensive physical training samples and equipment.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3951748B1Virtual testing and inspection of a virtual weldment
Publication Date: 2023.10.25 LINCOLN GLOBAL INC
  • EP3951748B1 patent drawingFigure 1
  • EP3951748B1 patent drawingFigure 2
  • EP3951748B1 patent drawingFigure 3

AI summary

Arc welding simulations that provide simulation of virtual destructive and non-destructive testing and inspection of virtual weldments for training purposes. The virtual testing simulations may be performed on virtual weldments created using a virtual reality welding simulator system (e.g., a virtual reality arc welding (VRAW) system). The virtual inspection simulations may be performed on "pre-canned" (i.e. pre-defined) virtual weldments or using virtual weldments created using a virtual reality welding simulator system. In general, virtual testing may be performed using a virtual reality welding simulator system (e.g., a virtual reality arc welding (VRAW) system), and virtual inspection may be performed using a standalone virtual weldment inspection (VWI) system or using a virtual reality welding simulator system (e.g., a virtual reality arc welding (VRAW) system). However, in accordance with certain enhanced embodiments of the present invention, virtual testing may also be performed on a standalone VWI system.