The following flowchart explains the various inspection stages of the welds in Piping module.
This workflow is applicable for Fabrication Structural module as well.
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Material Verification - After the welds are loaded in the welds module, the welds are sent for Material Verification where the material/component is inspected to check the condition of a material. The accepted welds in this stage are then sent to Fit-Up Verification.
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Fit-Up Verification - In the Fit-Up stage, the welder creates a temporary weld and sends for inspection. The inspector creates Notice of Inspection (NOI) to determine if the welds are suitable for further inspection and then generates a Report of Inspection (ROI) to check the inspection results.
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Material Verification + Fit-Up Verification - This inspection stage is a combination of both Material Verification and Fit-Up Verification process. You can choose this inspection stage, if you do not want Material Verification and Fit-Up Verification process to be performed separately for a weld.
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Pre Weld Heat Treatment (PWHT) - After the welds are accepted in Fit-Up Verification and Material Verification stages, the welds are sent for Pre Weld Heat Treatment inspection. Pre-Weld Heat Treatment is a controlled process performed on a weld to reduce the risk of hardness of weld heat affected zone, shrinkage stresses, and also to improve the distribution of residual stresses.
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If PWHT Required property is set to NA, then Pre Weld Heat Treatment is not required and the welds are directly sent for Visual inspection where different NDT tests are conducted for a weld.
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Visual Inspection - In this inspection stage, you can verify the integrity of the weld by conducting various Non Destructive Test (NDT) tests for the welds. The property Is NDT Required (for different NDT types such as Is NDT (BSR) req, Is NDT ASR req, Is PWHT req and so forth) is set to Yes or NA based on the welds that undergo various NDT tests.
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Non Destructive Test (NDT) - Non-destructive testing (NDT) is a process of inspecting, testing, or evaluating materials/components to ensure that defects in the welds are detected prior to being put to use. The various NDT methods are:
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Ultrasonic Testing (UTE)
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Hardness Testing (HDT)
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Radiography Testing (RTE)
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Positive Material Identification Testing (PMI)
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Magnetic Particle Inspection Testing (MPI)
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Ferrite Count Testing (FCO)
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Dye Penetrant Inspection Testing (DPI)
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Phase Array Ultrasonic Testing (PAU)
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Post Weld Heat Treatment (PWHT)
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Time of Flight Diffraction (TOFD)
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Lot Management
The above NDT tests are conducted in NDT Before Stress Release (BSR) and NDT After Stress Release (ASR). A Notice of Inspection (NOI) and Report of Inspection (ROI) are generated in each NDT method.