INVESTIGATION OF TEMPERATURE FIELD GENERATED BY THE TANDEM SUBMERGED ARC WELDING PROCESS
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL AND ROBOTICS ENGINEERING
Author(s): BOGDAN GEORGESCU , CARMEN CATALINA RUSU , DAN BIRSAN , DANIEL VISAN , EMIL CONSTANTIN , LUIGI-RENATO MISTODIE , OCTAVIAN MIRCEA
Abstract: Process welding simulation is a useful tool for investigation of heat transfer, temperature field distribution, melted pool dynamics, cooling rate and, further, prediction of microstructure changes in the welded joint. The high temperature reached in the fusion zone and heat affected zone can cause phase transformations and alteration of the mechanical properties produced in the parent metal. Given the great influence of heat transfer, an accurate evaluation of temperature field generated by the welding processes is needed, in order to properly predict the base material behaviour, such as microstructure evolution, stress analysis and, finally, the quality level of the welded joint. The paper presents a detailed investigation of temperature field distribution in the case of Tandem Submerged Arc Welding (TSAW) process applied to join plates of pipeline steel. A 3D numerical model was developed and experimentally validated by comparing the thermal cycles achieved through finite element an
- Publication Date: 26-Oct-2014
- DOI: 10.15224/978-1-63248-031-6-152
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MONITORING SYSTEM OF TEMPERATURE FIELD IN PIPELINE SUBJECTED TO MULTI-WIRE SUBMERGED ARC WELDING
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL AND ROBOTICS ENGINEERING
Author(s): CARMEN CATALINA RUSU , ELENA SCUTELNICU , LUIGI-RENATO MISTODIE , NICUSOR ENE
Abstract: The investigation focuses on particular aspects and features related to the spatial measurement of temperatures, in the case of longitudinal multiple-wire submerged arc welding of pipelines. The research methodology is based on the combination of traditional measuring methods of temperature, such as thermocouples and digital pyrometers, with modern methods, like infrared thermography technique. The infrared thermography method provides the temperature field distribution on the welded plate surface, while numerical methods give information on temperature in the entire welded joint, including on the plate thickness. The authors propose a dual monitoring system of temperature measurement in longitudinal welded pipelines which comprises K-type thermocouples and an infrared thermo-camera. The temperatures values are recorded through four devices (recorders) with different number of channels which continuously monitor the temperature in the welded joint. The thermo-camera is used to acquire
- Publication Date: 26-Oct-2014
- DOI: 10.15224/978-1-63248-031-6-153
- Views: 0
- Downloads: 0