Study of the anode energy in gas metal arc weldingRecent research of gas metal arc welding (GMAW) has proven that the sheath voltage dominates the total voltage fall in the current circuit and delivers most of the energy, which is finally transferred to the wire and the weld pool. This data set provides the results for droplet temperatures and the energy delivered to the wire anode in comparison with the sheath voltages. These quantities have been studied experimentally for a typical pulsed GMAW process in the one drop per pulse mode for mild steel under Ar with 2.5% CO2 with different peak currents from 350 to 650 A. A constant wire feed speed of 4 m/min as well as constant arc height are considered. The processes were studied with non-intrusive optical methods, i.e. without strong modification. The droplet energy was determined by high-speed two-color pyrometry and an analysis of the droplet surface temperature and geometry. In addition, the Joule heating in the wire anode was also estimated from surface temperature measurements. It was found that the averaged droplet energy is almost independent of the peak current and approximately 1/3 of the total electric energy. A voltage equivalent of the energy delivered to the wire anode from the plasma was deduced. Subtracting the work function of iron, the value of this voltage is around 3V. The detailed quantities can be found in this data set.

]]>GMAWhigh-current arcThermal Plasma Technology001bc85a-1fd1-4e25-8d6c-b29d689d516c2020-04-01T19:54:16+02:002021-06-11T12:36:49+02:00enINPStudy of the anode energy in GMAW - Fig. 1Example of measured current and voltage over time for the case of the peak current 450 A (data set) – see Fig. 1 in the paper

]]>2020-04-01T19:56:46+02:002020-05-19T09:04:36+02:00text/csvcsv451223https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/ed045780-3263-47b6-b06b-5e069cda9540Study of the anode energy in GMAW - Fig. 2 (set of images)Examples of the infrared camera images and droplet boundaries for one droplet at four instants during falling for the case of the peak current 450 A (set of images) – see Fig. 2 in the paper

]]>2020-04-01T22:37:44+02:002020-05-19T09:04:59+02:00image/pngpng90916https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/e2bae7eb-8b43-4cf1-8fcd-9f46bb95fce3Study of the anode energy in GMAW - Fig. 2 (2D data record)Examples of the surface temperature results for one droplet at four instants during falling for the case of the peak current 450 A – see Fig. 2 in the paper. The data set contains the temperature values in K for every pixel in a 2D record. A pixel corresponds to a spatial distance of 27.8 micrometer on the droplet surface.

]]>2020-04-01T22:55:30+02:002021-06-11T12:36:49+02:00text/csvcsv104606https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/b770d52b-1012-401a-8cac-ad0ca0f70077Study of the anode energy in GMAW - Fig. 3Example of the mass of one droplet from subsequent images during falling for the case of the peak current 450 A (data set) – see Fig. 3 in the paper

]]>2020-04-01T23:03:51+02:002020-05-19T09:05:45+02:00text/csvcsv392https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/47ed7f9a-5001-4001-a9b8-79e175f43076Study of the anode energy in GMAW - Fig. 4Average temperature as a function of the axial position of several droplets for the case of the peak current 550 A (data set) – see Fig. 4 in the paper

]]>2020-04-01T23:10:01+02:002021-06-11T12:36:53+02:00text/csvcsv5557https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/d2bc6650-1cd8-4e78-880d-0d1588fd1319Study of the anode energy in GMAW - Fig. 5Temperature and thermal energy as a function of the droplet mass for 20 droplets for the case of peak current 450 A (data set) – see Fig. 5 in the paper

]]>2020-04-01T23:19:13+02:002020-05-19T09:06:22+02:00text/csvcsv1027https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/2cc23887-66b7-4a0f-85e6-8e938a70449aStudy of the anode energy in GMAW - Fig. 6Mean values and standard deviation of the temperature, the volume, the mass, and the thermal energy of droplets as well as the average number of droplets per pulse for the cases with different peak current (data set) – see Fig. 6 in the paper

]]>2020-04-01T23:21:45+02:002020-05-19T09:06:40+02:00text/csvcsv743https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/89d6892e-1953-45f1-b7b7-39ea03178561Study of the anode energy in GMAW - Fig. 7Averaged power delivered to the wire anode, total electric power and power in the peak current phases for the seven cases of peak currents (data set) – see Fig. 7 in the paper

]]>2020-04-01T23:24:56+02:002020-05-19T09:06:55+02:00text/csvcsv325https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/c2295764-495e-4e32-aa90-0898d7be0970Study of the anode energy in GMAW - Fig. 9Voltage equivalent of the power delivered by the plasma to the wire anode plus the work function in comparison with the voltage drops over wire and contact tube, the arc column voltage, and the sum of the sheath voltages for the seven cases of peak currents (data set) – see Fig. 9 in the paper

]]>2020-04-01T23:27:53+02:002020-05-19T09:07:11+02:00text/csvcsv454https://www.inptdat.de/dataset/study-anode-energy-gas-metal-arc-welding/resource/3aafe4b7-2489-4bfb-8985-fedd0b9c5d66DKANhttps://www.inptdat.de