Temperature spread modeling of electron beam heating process

T G Oreshenko,V E Petrenko,V V Kukartsev,O A Bocharova,A N Bocharov,V S Tynchenko

doi:10.1088/1742-6596/1353/1/012077

Abstract

The research and creation of the mathematical model of temperature distribution in the electron beam heating, depending on the technological parameters are considered in this paper. A feature of this mathematical model is used by the process of producing welds of parts from aluminum alloys. Aluminum alloys are of great interest for various industries, such as aerospace, aviation, automotive, oil and gas, chemical industry and others, because the aluminum alloys has low weight. However, when welding aluminum alloys, various defects can occur, such as porosity or hot cracks, which limit it uses. One of the main problems is connected with the welding of aluminum alloys this is a problem of determining the causes of porosity during the design and technological preparation and production of products prototypes from the new alloys, also the recommendations preparation for the welding technology of these products.

Highlights

The electron beam welding is widely used by the process of production of details for the rocket-space industry, which permits to obtain the high-quality welded joints of materials of large thickness
The study of the porosity of welded joints obtained by electronbeam welding is devoted to the work of such famous scientists as P-A Legait, J.L
Simulation of electron beam welding Some results, techniques and methods of mathematical modeling of the electron beam, the channel of penetration and heat transfer during electron beam welding are widely described by the scientific sources [1,2,3]

Summary

Introduction

The electron beam welding is widely used by the process of production of details for the rocket-space industry, which permits to obtain the high-quality welded joints of materials of large thickness. 2. Simulation of electron beam welding Some results, techniques and methods of mathematical modeling of the electron beam, the channel of penetration and heat transfer during electron beam welding are widely described by the scientific sources [1,2,3]. If the parameters of the electron-beam heat source are known, the temperature field in the material being processed is determined by solving the problem of thermal conductivity. The calculation of the temperature field is simplified, if conditions of tasks with sufficient accuracy for practice, that is possible to take the thermal conductivity coefficient λ and volume specific heat constant cρ. At the same time for the temperature of any point of the solid

The fundamental heat equation for this case

Conclusion