Automated Laser Ultrasonic Testing (ALUT) Of Hybrid Laser Arc Welds For Pipeline Construction

Project Categories

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• Onshore Transmission Pipeline
• Arctic
• Non-destructive Testing/Evaluation
• Pipeline Design/Construction
• Weld/Fabrication Defects

Main Objective

The goal of this project is to apply laser ultrasonics for monitoring the integrity of girth welds in real time, using a measurement sensor that is mounted in tandem with the weld head. This project is consolidated with a parallel project on the development of hybrid laser arc welding for girth weld production.

Public Abstract

Girth welds in new pipeline construction have stringent inspection requirements to insure pipeline safety. Current automated ultrasonic inspection testing systems are complex and are limited to post process application. Laser ultrasonics is a noncontact technique that can perform ultrasonic measurements on hot, moving surfaces. The goal of this project is to apply laser ultrasonics for monitoring the integrity of girth welds in real time, using a measurement sensor that is mounted in tandem with the weld head. This project is consolidated with a parallel project on the development of hybrid laser arc welding for girth weld production.

Quarterly Status Reports

3rd Quarterly Status Report - Public Page

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4th Quarterly Status Report - Public Page

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5th Quarterly Status Report - Public Page

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7th Quarterly Status Report - Public Page

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9th Quarterly Status Report - Public Page

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2nd Quarterly Status Report - Public Page

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Quarterly #8 and Public Page #8

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1st Quarterly Status Report - Public Page

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Public Page #6

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