Software for modeling brazing process of spacecraft elements from widely used alloys

Abstract

The article develops a software system module for modeling the brazing of spacecraft elements from widely used alloys based on induction heating. The approach proposed by the authors is based on the use of two-dimensional non-stationary heat conduction equations. A permanent heat source is added to these equations, because heating occurs due to eddy currents. The mathematical model proposed by the authors considers: the geometric parameters of the waveguides, the physical parameters of materials, the initial and boundary conditions, as well as the uneven distribution of the eddy current density in the waveguide. This approach allows you to simulate the brazing process for almost any materials with different geometric parameters used in the aerospace industry. In this work, we simulate the process of induction brazing of pipelines from Alloy 321 stainless steel (UNS S32100). The need to develop a module of the software system is due to: (1) high temperature of the board and the need to withstand the regime; (2) use of duct boxes to create a protective environment; (3) high material costs when developing a new technological process (for example, when brazing a larger pipe). As a result of this work, a software system module was developed and modeling of induction brazing of pipelines in protective environments from Alloy 321 stainless steel was carried out, the results of which are presented in the article.