Abstract
Abstract. Direct measurement of the flow of electric current during VAR is extremely difficult due to the aggressive environment as the arc process itself controls the distribution of current. In previous studies the technique of “magnetic source tomography” was presented; this was shown to be effective but it used a computationally intensive iterative method to analyse the distribution of arc centre position. In this paper we present faster computational methods requiring less numerical optimisation to determine the centre position of a single distributed arc both numerically and experimentally. Numerical validation of the algorithms were done on models and experimental
validation on measurements based on titanium and nickel alloys (Ti6Al4V and INCONEL 718). The results are used to comment on the effects of process parameters on arc behaviour during VAR
validation on measurements based on titanium and nickel alloys (Ti6Al4V and INCONEL 718). The results are used to comment on the effects of process parameters on arc behaviour during VAR
Original language | English |
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Number of pages | 8 |
Journal | IOP Conference Series: Materials Science and Engineering |
Volume | 143 |
Issue number | 1 |
DOIs | |
Publication status | Published - 17 Aug 2016 |
Bibliographical note
This is an open-access journal publication of a paper originally presented at a conferenceKeywords
- VAR
- Ti-6Al-4V
- IN718
- Tomography
- ARC