Continuous monitoring of an intentionally-manufactured crack using an automated welding and in-process inspection system
Year: 2020
Type: article
Abstract: Automated weld deposition coupled with the real-time robotic Non-Destructive Evaluation (NDE) is used in this paper. For performance verification of the in-process inspection system, an intentionally embedded defect, a tungsten rod, is introduced into the multi-pass weld. A partially-filled groove (staircase) sample is also manufactured and ultrasonically tested to calibrate the real-time inspection implemented on all seven layers of the weld which are deposited progressively. The tungsten rod is successfully detected in the real-time NDE of the deposited position. The same robotic inspection system was then used to continuously monitor an intentionally-manufactured crack for 20 h. The crack was initiated 22 min after the weld ended and it grew quickly within the next 1.5 h. The crack growth stopped approximately after 2 h and no considerable change in the reflection signal was detected for the next 18 h of monitoring.
Source: Materials & Design
Institution: University of Strathclyde
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,000
Awards: G2730185775, New Wire Additive Manufacturing (NEWAM), G3879333842, G394535977, G4291142491, UK RESEARCH CENTRE IN NON-DESTRUCTIVE EVALUATION (RCNDE) 2014-2020, G4970179049, Autonomous Inspection in Manufacturing & Remanufacturing (AIMaReM), Robotic Wire + Arc Additive Manufacture cell, G7571721515, G8612968904
OpenAlex ID: W3012467327