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Filling mechanism for prototype parts produced by vacuum differential pressure casting technology

  • Chil-Chyuan KuoEmail author
  • Wei-Kai Qiu
  • Hsueh-An Liu
  • Chao-Ming Chang
ORIGINAL ARTICLE
  • 29 Downloads

Abstract

Vacuum casting (VC) is the most economical production process for producing small numbers of prototype parts under vacuum conditions. The filling of the casting material in the conventional VC process only depends on the gravity. Thus, some defects of the cast part are observed. In this study, differential pressure (DP) VC was proposed to reduce the filling time and improve the quality of cast parts. In this study, the filling mechanisms in both horizontal and vertical directions were investigated theoretically and experimentally. The actual filling situations of the acrylonitrile butadiene styrene resin in both the horizontal and vertical directions are similar to the simulation results. The relationship of the filling time for DP time, sprue diameters, and mold cavity capacities was investigated. The filling time can be estimated in terms of DP time, sprue diameter, and mold cavity capacity.

Keywords

Filling mechanism Filling time Differential pressure Vacuum casting 

Notes

Funding information

The authors sincerely acknowledge financial support from the Ministry of Science and Technology of Taiwan under contract nos. MOST 107-2221-E-131-018, MOST 106-2221-E-131-010, MOST 106-2221-E-131-011, and MOST 105-2221-E-131-012.

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringMing Chi University of TechnologyTaipeiTaiwan
  2. 2.Research Center for Intelligent Medical DevicesMing Chi University of TechnologyNew Taipei CityTaiwan

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