Virtual Reality GTAW Welding Simulator with Dynamic Puddle Feedback

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Solution Overview

Problem

Traditional welding training methods are costly and inefficient, as they require real-world practice, and existing virtual reality systems only teach muscle memory without addressing advanced welding skills.

Innovation Solution

A virtual welding simulator that generates a real-time interactive virtual environment, simulating Gas Tungsten Arc Welding (GTAW) and pipe welding, using a mock welding tool with spatial tracking and haptic feedback, to emulate the real-world experience and provide real-time feedback on technique.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional real-world welding training is used, then welders can learn advanced welding skills, but training costs are high and material waste occurs

Engineering Contradiction:
Improvewelding skill training effectivenessVSAvoidtraining cost and material waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent creates a virtual copy of the welding environment, welding equipment, and welding processes. The virtual welding simulator replicates the visual and operational aspects of real welding without consuming physical materials, allowing trainees to practice extensively without the costs associated with real welding training.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the physical mechanical welding system with a virtual reality-based simulation system. Instead of using actual welding equipment, power sources, and consumables, the system uses computer-generated visual simulations that replicate welding phenomena, substituting physical resource consumption with digital representation.

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

2Loss of energy

If existing virtual reality welding systems are used, then training costs are reduced, but advanced welding skills cannot be effectively taught

Engineering Contradiction:
Improvetraining costVSAvoidadvanced welding skill training effectiveness
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent changes the parameters of the virtual simulation to include dynamic representation of molten metal fluidity and heat dissipation characteristics. By incorporating these physical parameters into the virtual environment, the system can teach advanced welding skills that depend on understanding metal behavior under heat, such as weld pool control and heat management techniques.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces dynamic elements to the virtual welding simulation, specifically the real-time visualization of molten metal fluidity and heat dissipation. These dynamic characteristics allow trainees to observe and learn from the behavior of welding materials during the actual welding process, enabling instruction of advanced skills that require understanding of material dynamics.

Inventive Principle:
Principle #15Dynamics

3Loss of substance

If virtual reality welding simulation is implemented, then material waste is reduced, but real-time molten metal fluidity and heat dissipation characteristics are not simulated

Engineering Contradiction:
Improvewelding material wasteVSAvoidmolten metal fluidity and heat dissipation information
Core Design Contradiction:
Loss of substanceVSLoss of information

Solution Approach 1:

The patent substitutes physical material consumption with virtual representation, eliminating welding material waste while simultaneously incorporating visual simulations of molten metal behavior. The system uses computer graphics to represent fluid dynamics and heat transfer phenomena that would normally be observed only in physical welding processes.

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

Solution Approach 2:

The patent changes the simulation to include visual representation of physical parameters such as molten metal fluidity and heat dissipation. By rendering these parameters visually in the virtual environment, the system preserves the educational value of observing material behavior while eliminating the need for physical material consumption during training.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2973511B1Virtual reality GTAW and pipe welding simulator and setup
Publication Date: 2018.10.17 LINCOLN GLOBAL INC
  • EP2973511B1 patent drawingFigure 1
  • EP2973511B1 patent drawingFigure 2
  • EP2973511B1 patent drawingFigure 3a

AI summary

A simulator facilitating virtual welding activity. The simulator may include a logic processor based subsystem operable to generate an interactive welding environment in virtual reality space that emulates welding activity by simulating a virtual weld puddle having dynamic, real time molten metal fluidity and heat dissipation characteristics, responsive to performing a simulated welding activity in real time. The simulator may include a foot pedal device in operative communication with the logic processor based subsystem and configured to affect a characteristic of the virtual weld puddle in real time, responsive to user control of the foot pedal device. The simulator may be con¬ figured to track the movements of a mock welding tool and a mock filler wire and determine interaction between the virtual weld puddle, a corresponding virtual welding tool, and a corresponding filler wire in virtual reality space that would result in the welding tool becoming contaminated.