Results 181 to 190 of about 7,270,279 (223)

Spectral composition of welding current and efficiency of welding inverter

2012 International Conference on Actual Problems of Electron Devices Engineering, 2012
On the basis of a computer model of the welding inverter with PWM control output impulses of alternating current the spectral composition of this current and its relation to efficiency at different values of operating frequency and duty cycle were investigate.
V.M. Bardin, A.V. Pivkin
openaire   +1 more source

Welding current sensor

Приборы и системы. Управление, контроль, диагностика, 2018
Механизированная сварка в защитных газах с импульсным (дозированным) режимом подачи электродной проволоки предусматривает использование быстродействующего компьютерного комплекса для управления приводом двигателя подачи электродной проволоки. При этом необходимо иметь специальные датчики определяющие параметры горения дуги, в частности, датчик ...
openaire   +1 more source

Current Regulation in Contact Welding

Russian Engineering Research, 2019
Algorithms for current stabilization in the control of contact welding are considered. The proposed method for specifying and maintaining the welding current permits correction of the thyristor firing angle by means of an approximate formula taking account of the measured current-pulse parameters in phase regulation.
A. S. Klimov, A. N. Antsiborov, V. S. Klimov, A. K. Kudinov   +3 more
openaire   +1 more source

Calibration of Weld Current Monitors at INTI Argentina

2020 Conference on Precision Electromagnetic Measurements (CPEM), 2020
This paper describes a development of a calibration system for weld testers, or weld current monitors, at the Instituto Nacional de Tecnologia Industrial (INTI) in Argentina. The calibration system is presently capable of generating short duration currents of up to 15 kA.
Casais, José Luis, Bierzychudek, Marcos E., Djokic, Branislav, Parks, Harold   +3 more
openaire   +1 more source

A regulator of a welding current source

Welding International, 2005
(2005). A regulator of a welding current source. Welding International: Vol. 19, No. 1, pp. 75-77.
V A Lebedev, S I Pritula, V S Romanyuk, I S Kuz'min, V G Novgorodski   +4 more
openaire   +1 more source

Resistance welding. Welding current measurement for resistance welding

2015
  +7 more sources

Influence of welding current shape on expulsion and weld strength of resistance spot welds

Science and Technology of Welding and Joining, 2006
The present paper presents the influence of welding current shape on weld strength of resistance spot welds of zinc coated mild steel sheets. The influence is analysed at different levels of the electrode wear. Welding currents with different peak values and different RMS (root mean square) values were used in the experiment.
P. Podržaj, I. Polajnar, J. Diaci, Z. Kariž   +3 more
openaire   +1 more source

Current Distribution Monitoring in Capacitor Discharge Welding

2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), 2020
The capacitor discharge welding (CDW) is a resistance welding process that excels through brief process times, low thermal stress, and good automation potential. Nevertheless, potential industrial users hesitate to use the CDW process, owing mainly to the unavailability of automated process control to ensure cost-efficient production and high product ...
Moritz Meiners, Tobias Reichenstein, Jörg Franke, Rainer Hauenstein   +3 more
openaire   +1 more source

Definition of Peak Value of Welding Current at Pulsed Arc Welding

Applied Mechanics and Materials, 2014
Pulsed arc welding is one of the ways to control the process of an electrode metal drop transfer actively. Conditions of an electrode metal directional transfer during a pulse-arc welding were investigated, and provided the basis for welding current peak value calculation.
N.Yu Krampit, M.A. Krampit, L.N. Zubenko
openaire   +1 more source

Resistance welding. Welding current measurement for resistance welding

2013
  +6 more sources