This report describes the results of a survey of weld repair and reclamation in Canada. A literature survey covered articles available for the period 1966 to 1981 dealing with weld repair and weld surfacing. Visits were also made to major companies…
Performed elastic-plastic finite element analysis of pipe sections with internal wall loss to determine remaining strength. Continued with finite element analysis of external direct deposition repairs of internal wall loss for straight and curved…
This project developed a prototype multi-axis automatic welding system with adaptive control and tracking for use on in-service welding repairs on liquid and gas transmission pipelines. The system is capable of deploying either gas metal arc welding…
There is a periodic requirement for immediate weld repairs during all pipe-laying operations. This need arises due to the occasional occurrence of girth weld flaws, which exceed specified defect tolerance levels. These defects are most commonly…