A simulation and analysis of electron beam welding based on dynamic focus

DOI

10.2991/mmme-16.2016.8How to use a DOI?

Keywords

Electron beam welding, Dynamic focus, Power density, Dynamic heat source

Abstract

According to the characteristics of electron beam welding (EBW) heat source and thermal effect, a mathemat-ic model of rotary Gaussion body heat source based on the dynamic welding focus was developed, and the finite element model (FEM) is established. A numerical simulation experiments of the vacuum EBW were made with the Q235 steel plate of 50 mm in thickness. This simulation was included the temperature field dis-tribution in fixed focus welding and the temperature field distribution in dynamic focus welding. Results shown that the welding depth was unstable when the frequency was at 10 Hz and the welding depth was sta-ble relatively when the frequency was at 30 Hz in the dynamic focus welding. Compared to the fixed focal welding, when focus moving frequency was right, the dynamic focus welding could increase the depth of welding. The simulation of the dynamic focus welding shapes were consistent with the characteristics of the actual test of EBW.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Weipeng Yin
AU  - Shouqi Wei
PY  - 2016/10
DA  - 2016/10
TI  - A simulation and analysis of electron beam welding based on dynamic focus
BT  - Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering
PB  - Atlantis Press
SP  - 30
EP  - 33
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmme-16.2016.8
DO  - 10.2991/mmme-16.2016.8
ID  - Yin2016/10
ER  -