Measuring current discharge stored energy in capacitors welding
Journal Title: Proceedings in Manufacturing Systems - Year 2017, Vol 12, Issue 1
Abstract
This paper presents an alternative for measuring the discharge current welding with stored energy in capacitors. Spot welding equipment with stored energy electrostatic allow very harsh regimes that ensure very short times and high currents. These regimes welding allow precise metering of energy at welds and heat concentration in the desired region. Welding stored energy in capacitors is applied to welding materials and alloys with high thermal conductivity, welding special steels, where thermal cycling tough being put steel in the short time of welding restrict minimal heat affected zone and does not lead to formation of structures fragile at welding materials and alloys of different nature which occurs at the point where alloy weld is very small homogeneous. In the case of thin parts at the welding energy cannot be dispensed to produce apertures. The discharge current measurement (kA) in phase can be done with a coil-type transducer Regowski. Magnetomotive voltage provided by the Rogowski coil is taken by an integrator amplifier circuit. Chain calibration is shown for measuring the discharge current using Rogowski coil transducer and the experimental results regarding the variation of discharge currents according to the charging voltage and stored energy equipment and without turned to welding. Experiments are presented on the phenomenon of welding transformer core saturation. Disclosed is a method for measuring current discharge stored energy welding using a Hall transducer.
Authors and Affiliations
Victor Popovici, Delicia Arsene, Claudia Borda
Keywords
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- EP ID EP240722
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