Phmsa Triskelion Logo United States Department of Transportation

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

Overview

Fast Facts

Project No. 223
Contract No. DTPH56-07-T-000008
Research Award Recipient Intelligent Optical Systems, Inc. (IOS) 2520 West 237th Street Torrance CA 90505-5217 Torrance, CA 90505
AOTR James Merritt
Researcher Contact Info Marvin Klein Phone: 424 263-6361 email: mklein@intopsys.com

Technology and Commercialization

Technology Demonstrated TBD
Commercialized (in whole/part) TBD
Commercial Partner Empty Value
Net Improvement Empty Value

Financial and Status Data

Project Status Closed
Start Fiscal Year 2007 (08/01/2007)
End Fiscal Year 2010 (11/30/2009)
PHMSA $$ Budgeted $584,948.00

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.

Relevant Files & Links

Final Report

3163 (MK) DOT Final Rpt.pdf

3163_(MK)_DOT_Final_Rpt.pdf