Results 261 to 270 of about 167,152 (288)
Some of the next articles are maybe not open access.
Current Regulation in Contact Welding
Russian Engineering Research, 2019Algorithms 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 +3 more
openaire +1 more source
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
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 Research Into Laser Welding Aluminium Alloys
SPIE Proceedings, 1989ABSTRACT Although welding experiments on light alloys (aluminium or titanium based) have been performed since the beginning of the 1980's, the relative techniques have rarely been applied to production. The major difficulties in laser welding these alloys is only partially due to the differing thermal properties of the materials: another feature of ...
TOSTO S. +5 more
openaire +2 more sources
Current Issues and Problems in Welding Science
Science, 1992Losses of life and property due to catastrophic failure of structures are often traced to defective welds. However, major advances have taken place in welding science and technology in the last few decades. With the development of new methodologies at the crossroad of basic and applied sciences, the promise of science-based tailoring of composition ...
S A, David, T, Debroy
openaire +2 more sources
Applied Mechanics and Materials, 2013
Austenitic stainless steels have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industry.
Kondapalli Siva Prasad +2 more
openaire +1 more source
Austenitic stainless steels have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industry.
Kondapalli Siva Prasad +2 more
openaire +1 more source
Spectral composition of welding current and efficiency of welding inverter
2012 International Conference on Actual Problems of Electron Devices Engineering, 2012On 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
Influence of welding current shape on expulsion and weld strength of resistance spot welds
Science and Technology of Welding and Joining, 2006The 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 +3 more
openaire +1 more source
Toughness and Internal Friction of Weld Metal Welded by High-Current MAG Welding
Advanced Materials Research, 2011Low-temperature impact test on four different kinds of weld metal welded by different technologies of high-current MAG welding was carried out in this paper. The results show that different materials and different welding parameters have different effect on impact energy.
openaire +1 more source