Evaluation of Arc Welding Process Using Digital Storage Oscilloscope and High Speed Camera

Savyasachi, N.; Chandrasekar, N.; Albert, S. K.; Surendranathan, A. O.

doi:10.22486/iwj.v48i4.126046

Cited by 2 publications

(1 citation statement)

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“…It was claimed that a commercial DSO is able to obtain the welding data and can be further used to assess the welding process in situ and online and can be a powerful competitor to other data acquisition systems designed for the same purpose due to the comparable data acquisition speed, volume and accuracy. Savyasachi et al [ 130 ] took advantage of a DSO and a high-speed camera simultaneously to monitor the Shielded Metal Arc Welding (SMAW). They proved that combining both technologies allows the investigation of different physical phenomena during the process at once.…”

Section: Defect Detection By Monitoring Waam and Fusion Welding Proce...mentioning

confidence: 99%

A Review of Non-Destructive Testing (NDT) Techniques for Defect Detection: Application to Fusion Welding and Future Wire Arc Additive Manufacturing Processes

et al. 2022

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In Wire and Arc Additive Manufacturing (WAAM) and fusion welding, various defects such as porosity, cracks, deformation and lack of fusion can occur during the fabrication process. These have a strong impact on the mechanical properties and can also lead to failure of the manufactured parts during service. These defects can be recognized using non-destructive testing (NDT) methods so that the examined workpiece is not harmed. This paper provides a comprehensive overview of various NDT techniques for WAAM and fusion welding, including laser-ultrasonic, acoustic emission with an airborne optical microphone, optical emission spectroscopy, laser-induced breakdown spectroscopy, laser opto-ultrasonic dual detection, thermography and also in-process defect detection via weld current monitoring with an oscilloscope. In addition, the novel research conducted, its operating principle and the equipment required to perform these techniques are presented. The minimum defect size that can be identified via NDT methods has been obtained from previous academic research or from tests carried out by companies. The use of these techniques in WAAM and fusion welding applications makes it possible to detect defects and to take a step towards the production of high-quality final components.

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Section: Defect Detection By Monitoring Waam and Fusion Welding Proce...mentioning

confidence: 99%

A Review of Non-Destructive Testing (NDT) Techniques for Defect Detection: Application to Fusion Welding and Future Wire Arc Additive Manufacturing Processes

et al. 2022

View full text Add to dashboard Cite

show abstract

The state-of-the-art methodologies for quality analysis of arc welding process using weld data acquisition and analysis techniques

Kumar

Parida

Albert

2021

Int J Syst Assur Eng Manag

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Evaluation of Arc Welding Process Using Digital Storage Oscilloscope and High Speed Camera

Cited by 2 publications

References 0 publications

A Review of Non-Destructive Testing (NDT) Techniques for Defect Detection: Application to Fusion Welding and Future Wire Arc Additive Manufacturing Processes

A Review of Non-Destructive Testing (NDT) Techniques for Defect Detection: Application to Fusion Welding and Future Wire Arc Additive Manufacturing Processes

The state-of-the-art methodologies for quality analysis of arc welding process using weld data acquisition and analysis techniques

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