A study of thin-walled ZL105A casting manufactured by vacuum differential pressure casting

DOI

10.2991/iccte-17.2017.102How to use a DOI?

Keywords

thin-walled, aluminum alloy, shell casting, vacuum differential pressure, rain type gating system, chill, simulation, process parameters

Abstract

The casting with more than 70% thin-walled parts and minimum wall thickness of 2 mm was manufactured by vacuum differential pressure casting (VDPC). The shower gating system was used to ensure smooth filling of melt. The top risers were replaced by chills and the positions of the chills were optimized to eliminate defects in hot spot place. The rational assembling of gating system and chill ensure the progressive solidification of the casting. Moreover, the optimal process parameters were determined as follows: vacuum degree 0MPa, filling pressure 0.1MPa, filling velocity 3.5cm/s, rising pressure velocity 0.02MPa/s, dwell pressure 0.15MPa and pressure holding time 7min. The simulation results indicated that the optimized gating system and process parameters could ensure complete filling and progressive solidification of the thin-walled casting. The X-ray and mechanical performances results showed that the complicated and precise aluminum alloy casting could be manufactured by using optimal gating system and casting process parameters.

Copyright

© 2017, 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/).

Download article (PDF)

TY  - CONF
AU  - Shuai Zhan
AU  - Jingtao Song
AU  - Minghui Ding
AU  - Guo Jin
AU  - Honghui Liu
PY  - 2017/07
DA  - 2017/07
TI  - A study of thin-walled ZL105A casting manufactured by vacuum differential pressure casting
BT  - Proceedings of the 2017 2nd International Conference on Civil, Transportation and Environmental Engineering (ICCTE 2017)
PB  - Atlantis Press
SP  - 574
EP  - 582
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-17.2017.102
DO  - 10.2991/iccte-17.2017.102
ID  - Zhan2017/07
ER  -