MELTING RATE CALCULATION ON PREHEATED WIRES OF VARIOUS CHEMISTRY UNDER ARC WELDING

• Main Authors: Evgeny N. Varukha, Alexander S. Korobtsov, Igor S. Morozkin
• Format: Article
• Language: Russian
• Published: Don State Technical University 2018-07-01
• Series: Вестник Донского государственного технического университета
• Subjects: welding; consumable electrode; carbon dioxide; reverse polarity; wire heating; empirical formula; m el ting rate calculation on wire of various chemistry; calculation accuracy; improvement of wire melting productivity
• Online Access: https://vestnik.donstu.ru/jour/article/view/541

The empirical factors dependences on the process parameters for the welding wires of various chemist ry are o btained for t he empirical formula permitting to calculate the wire melting rate (feed) in a wide range of current s, preheat temperatures, electrode diameters , and stick - outs under the welding in carbon dioxide on the reversed p olarity current. The calculation accuracy by the empirical formula and by the known computational melting model of the same wires is comparatively appraised. The effect of stick - out and preheat temperature increase of the welding wires on the productivity - boosting features of their melting is asse ssed.