Influence and optimization criterion of milling modes and process parameters on residual stress

DOI

10.2991/icadme-15.2015.346How to use a DOI?

Keywords

Residual stress; Milling mode; process parameters; Finite element simulation; optimization criterion.

Abstract

The reduction and control of residual stress is very important to improve the surface quality and machining accuracy of the parts. In this paper, in order to reveal the effects of different milling modes and process parameters on the residual stress, the aluminum alloy Al7050-T7451 is used as the machining object and the finite element simulation software AdvantEdge is applied in establishing the milling model. It is found that up-milling is better than down-milling in low-speed and there is no obvious difference between them in high-speed. Besides, high-speed machining can obtain the smaller depth of sub-surface residual stress. Compared with low-speed, high-speed is more advantageous to realize the unification of quality and efficiency. What’s more, decreasing cutting width and improving cutting depth is easy to obtain ideal residual stress when the material removal rate is constant. Experiments on up-milling and down-milling have verified the validity of the finite element model and the effects of milling modes and process parameters on the residual stress. It has laid a solid theoretical and practical basis for constructing process optimization criteria, choosing appropriate milling modes and optimizing process parameters.

Copyright

© 2015, 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  - Beizhi Li
AU  - Yingzi Yan
AU  - Jianguo Yang
PY  - 2015/10
DA  - 2015/10
TI  - Influence and optimization criterion of milling modes and process parameters on residual stress
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1874
EP  - 1879
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.346
DO  - 10.2991/icadme-15.2015.346
ID  - Li2015/10
ER  -