Back to Search
Start Over
Applicability of monitoring of electric arc emissions for quality control in MAG-S process
- Source :
- Repositório Institucional da UnB, Universidade de Brasília (UnB), instacron:UNB, Soldagem & Inspeção, Volume: 16, Issue: 4, Pages: 341-349, Published: DEC 2011, Soldagem & Inspeção v.16 n.4 2011, Revista soldagem & inspeção, Associação Brasileira de Soldagem (ABS), instacron:ABS
- Publication Year :
- 2011
- Publisher :
- Associação Brasileira de Soldagem, 2011.
-
Abstract
- Garantizar la calidad en soldadura no es una tarea trivial. Para ello diversas inspecciones de control de calidad son realizadas, en detrimento, los costos y tiempos de producción se elevan. Existen diversos sistemas automatizados de soldadura, éstos son auxiliados por sistemas de control basados en el monitoreo de parámetros de soldadura. Sin embargo son reducidos los sistemas automatizados de monitoreo de calidad que en su mayoría son diseñados para el proceso TIG. Durante la soldadura, el arco eléctrico produce emisiones acústicas y electromagnéticas que se manifiestan como sonido y luminosidad. El objetivo del presente trabajo es mostrar que estas emisiones del arco pueden ser utilizados para el monitoreo de la calidad de la soldadura para el proceso MAG-S. Se realizaron múltiples experimentos de soldadura en posición plana donde se indujeron perturbaciones consistentes presencia de grasa y ausencia de gas de protección. En cada experimento se adquirió simultáneamente señales de tensión y corriente así como señales de emisiones del arco eléctrico. A partir de las emisiones acústicas y electromagnéticas en la banda de ultravioleta, se midió la frecuencia de cortocircuitos. A partir de la emisión electromagnética en la banda infrarroja se midió la estabilidad del proceso de soldadura. Los resultados muestran que las emisiones del arco pueden ser utilizadas para el monitoreo y detección de perturbaciones en soldadura y con el entendimiento de las variaciones de cada emisión podría identificarse determinados tipos de perturbaciones. Ensuring quality in welding is not a trivial task. For this purpose several quality control checks are performed, at the expense, costs and production times are increased. There are several automated welding systems and they are assisted by control systems based on monitoring of welding parameters. However, automated quality monitoring systems are limited and they are mostly designed for the TIG welding processes. During welding, the arc produces acoustic and electromagnetic emissions that occur as sound and light. The aim of this paper is to show that the emissions of the welding arc can be used to monitoring the quality of welding in MAG-S process. Multiple welding experiments were performed in flat position; in each experiment were induced perturbations by grease on plate and shielding gas absence. Current and voltage signals and arc emission signals were acquired simultaneously. The short circuit frequency was measured from acoustic and electromagnetic emission in the ultraviolet band. The welding stability was measured from infrared emission. The results show that the emissions of welding arc can be used for monitoring and detecting of disturbances in welding and with the understanding of the variations of each disturbance could be possible to identify certain types of disturbances.
- Subjects :
- Engineering
Engineering drawing
Monitoreo de Calidad
Welding
Soldagem
Automotive engineering
law.invention
Quality (physics)
law
Arc Emissions
Soldagem elétrica
MAG-S
business.industry
Quality Monitoring
Mechanical Engineering
Gas tungsten arc welding
Shielding gas
Metals and Alloys
Process (computing)
Emisiones de Arco
Mechanics of Materials
Control system
business
Short circuit
Voltage
Solda e soldagem
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional da UnB, Universidade de Brasília (UnB), instacron:UNB, Soldagem & Inspeção, Volume: 16, Issue: 4, Pages: 341-349, Published: DEC 2011, Soldagem & Inspeção v.16 n.4 2011, Revista soldagem & inspeção, Associação Brasileira de Soldagem (ABS), instacron:ABS
- Accession number :
- edsair.doi.dedup.....9d047d734fe0800930aaebe2ef50c835