Virtual Weldment Inspection for Repeated Quality Assessment
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Solution Overview
Problem
Conventional welding training and inspection methods rely heavily on destructive and non-destructive tests, which are costly, time-consuming, and limited, with a significant gap between creating a weldment and assessing its quality, particularly due to the need for expensive equipment and the inability to repeatedly test weldments without destruction.
Innovation Solution
The development of virtual reality simulation systems, including virtual reality arc welding (VRAW) and standalone virtual weldment inspection (VWI) systems, that allow for simulated destructive and non-destructive testing and inspection of virtual weldments, enabling repeated testing and analysis without physical damage, using programmable processor-based subsystems, spatial trackers, and display devices to create and inspect 3D virtual weldments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If destructive tests are performed on weldments to determine quality, then accurate quality assessment is achieved, but the weldment is destroyed and can only be tested once
Solution Approach 1:
The patent creates virtual copies of weldments in a computer-based simulation environment. These virtual weldment models replicate the physical properties and defect characteristics of actual weldments, allowing inspectors to perform repeated non-destructive testing evaluations without consuming or damaging the original weldment. The virtual model can be inspected multiple times from different angles and with different test methods.
Solution Approach 2:
The system transforms the physical weldment into a digital representation by changing its state from physical material to computer-generated model. This parameter change enables the weldment to be tested repeatedly in virtual space without the constraints of physical destruction, while maintaining all relevant quality assessment parameters such as defect locations, sizes, and types.
2Reliability
If non-destructive tests such as X-ray radiographic testing are used to inspect weldments, then quality assessment is possible without destruction, but expensive test equipment is required and the process is time-consuming
Solution Approach 1:
Instead of using expensive physical non-destructive testing equipment like X-ray machines, the patent creates virtual copies of the inspection process. The virtual weldment models incorporate defect data and allow various non-destructive test methods to be simulated computationally, eliminating the need for costly physical equipment while maintaining inspection reliability.
Solution Approach 2:
The patent replaces the mechanical and physical testing systems (X-ray equipment, ultrasonic devices, etc.) with a computer-based simulation system. The physical testing apparatus is substituted with software algorithms that simulate the inspection process, reducing equipment costs and complexity while maintaining the ability to assess weldment quality.
3Productivity
If a large gap exists between making a weldment and knowing if the weld is good, then production efficiency is maintained, but quality feedback is delayed and training effectiveness is reduced
Solution Approach 1:
The patent performs quality assessment actions in advance by creating virtual weldment models that contain embedded defect information during or immediately after the welding process. This preliminary creation of the virtual model allows for immediate quality feedback without waiting for physical inspection, bridging the time gap between welding completion and quality assessment.
Solution Approach 2:
The system implements immediate feedback loops where the virtual weldment model provides real-time or near-real-time quality information back to the welding process. This feedback mechanism allows inspectors and trainees to immediately see the results of welding techniques and defect creation, eliminating the delayed feedback inherent in traditional sequential testing methods.
Data Source
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.