Method of transverse magnetic induction calculation fields generated by introduction devices for The process of arc welding
DOI:
https://doi.org/10.31498/2225-6733.28.2014.33575Keywords:
arc welding, transversal magnetic field induction, modeling magnetic fields, electrostaticsAbstract
Efficiency process of arc welding under gumboil is defined by coefficient of fusion electrode metal, the sizes of a zone, melting main metal, and also size of structural components metal of a seam.
In known works were used the input equipment (IE) a transverse magnetic field (TMF) in the form of an electromagnet with the "П"-shaped ferromagnetic core, windings and an air gap in a zone of an electrode drop a welding arch and a welding bathtub. However questions of IE TMF design optimality in the specified works weren't discussed. In this regard optimization of a design of IE TMF for the purpose of achievement of the maximum cross values of induction of TMF in the specified zones at arc welding was carried out. Optimization of a design was carried out by a calculation method. When performing calculations the Mathcad 15 program for calculation of a structure of a magnetic field which generates IE TMF was used. On the basis of analogy between a structure of a magnetic field and an electrostatic field the settlement technique providing good convergence of data of calculation with experimental data for the magnetic field generated by IE TMF is developed.
The system of IE TMF in which measured tilt angles of cores to a vertical ranging from 0z to 90z is investigated. At research constant values were sustained: core width b= 26 mm, core length l= 50 mm, distance from end faces of cores to an axis OX h = 15 mm and distance between the lower edges of cores of a = 20 mm. Calculated values of tension of an electrostatic field in points at a product surface.
It is established that the design of IE TMF at which the tilt angle to a vertical makes 45z is optimum, and the lower end faces of IE TMF are parallel to the plate plane.
References
Устройства ввода поперечного магнитного поля для процессов дуговой сварки и наплавки (обзор) / А.Д. Размышляев [и др.] // Автоматическая сварка. – 2013. – №1. – С. 1-5.
Бессонов A.A. Теоретические основы электротехники. Электромагнитное поле / A.A. Бессонов. – М.: Высшая школа, 1986. – 263 с.
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