Virtual Reality Pipe Welding Simulator with Real-Time Feedback

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Solution Overview

Problem

Current virtual welding training systems fail to effectively teach advanced welding skills and are costly due to their reliance on physical models and limited ability to simulate real-time, realistic welding environments, which do not adequately prepare trainees for the complexities of real-world welding.

Innovation Solution

A virtual welding simulator that generates a real-time, interactive virtual environment, allowing users to practice welding in various positions and with different electrodes, providing real-time feedback on weld puddle behavior and technique, using a combination of spatial tracking, logic processor-based subsystems, and display devices to mimic the real-world experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If virtual reality welding training systems are used, then training costs are reduced compared to real welding practice, but the systems cannot effectively teach advanced welding skills and fail to simulate real-time realistic welding environments

Engineering Contradiction:
Improvetraining costVSAvoidtraining effectiveness
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent creates a virtual copy of the welding environment that replicates real-world welding physics and visual feedback. The system uses computer graphics to simulate molten metal fluidity, heat dissipation, and weld bead formation, providing a realistic training experience without the costs of actual welding materials and equipment wear.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system dynamically adjusts welding parameters such as amperage, voltage, and travel speed to simulate different welding conditions and teach advanced techniques. The virtual environment allows trainees to experiment with parameter changes and observe their effects on weld quality without consuming physical materials.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If motion analyzers and basic virtual reality systems are used, then muscle memory can be trained, but advanced welding skills and judgment cannot be taught

Engineering Contradiction:
Improvemuscle memory trainingVSAvoidadvanced skill development
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system provides real-time visual feedback of the weld puddle, heat affected zone, and weld bead formation, allowing trainees to observe the effects of their welding technique immediately. This feedback loop enables development of both muscle memory and advanced judgment by showing the causal relationship between welding parameters and weld quality.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent adds visual and thermal dimensions to the training experience by displaying temperature distributions, molten metal flow, and heat dissipation patterns. This multi-dimensional feedback goes beyond simple motion tracking to provide comprehensive understanding of welding physics and process control.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If real welding practice is used for training, then authentic welding skills are developed, but costs are incurred with every weld performed

Engineering Contradiction:
Improveskill acquisitionVSAvoidtraining cost
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The virtual welding system creates a photorealistic copy of the welding process that captures the visual appearance of molten metal, arc behavior, and weld bead formation. This visual copying provides authentic training value without consuming physical welding consumables or causing equipment wear.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system replaces expensive, consumable welding materials with virtual equivalents that can be reset and reused indefinitely. The virtual welding environment allows unlimited practice without the ongoing costs of electrodes, wire, gas, and filler metal.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP2873068B1Virtual reality pipe welding simulator and setup
Publication Date: 2020.05.06 LINCOLN GLOBAL INC
  • EP2873068B1 patent drawingFigure 1
  • EP2873068B1 patent drawingFigure 2
  • EP2873068B1 patent drawingFigure 3a

AI summary

A simulator facilitates virtual welding activity of orbital weld joints. The simulator may include a logic processor based system operable to execute coded instructions for generating an interactive welding environment that emulates welding activity on a section of virtual pipe having at least one virtual weld joint. It also includes a display connected to the logic processor based system for visually depicting the interactive welding environment, wherein the display depicts the section of virtual pipe. A pendant is provided for performing welding equipment setup and virtual welding activity on the at least one weld joint in real time where one or more sensors are adapted to track movement of the input device in real time for communicating data about the movement of the input device to the logic processor based system.