Loading...

Design and manufacture of a wax injection tool for investment casting using rapid tooling

Rahmati, S ; Sharif University of Technology | 2009

1150 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/S1007-0214(09)70076-8
  3. Publisher: 2009
  4. Abstract:
  5. A rapid wax injection tool of a gearbox shift fork was designed, simulated, and manufactured using rapid prototyping and rapid tooling technology to save time and cost of producing wax models used for the investment casting process. CAE simulation softwares, in particular, MoldFlow, are used to get wax injection moulding parameters such as filling parameters, temperature profiles, freeze time, speed, and pressure. The results of this research were compared with conventional wax model production methods. The criteria of such comparison were based upon parameters such as time, cost, and other related characteristics, which resulted in saving of 50% in time and 60% in cost. In this research, design, assembly, and wax injection operation of the wax tool took 10 days. Considering the fact that wax melting temperature is as low as 70°C and injection pressure of 0.5 MPa, the tool suffers no damage due to the thermal and pressure stresses, leading to the mass production of wax models. © 2009 Tsinghua University Press
  6. Keywords:
  7. Wax injection moulding ; CAE simulation ; Injection moulding ; Injection pressures ; Mass production ; Melting temperatures ; Pressure stress ; Production methods ; rapid tooling ; Rapid tooling technologies ; Simulation ; Temperature profiles ; Wax models ; Concurrent engineering ; Injection molding ; Investment casting ; Investments ; Job analysis ; Low temperature production ; Melting point ; Precision casting ; Rapid prototyping ; Stereolithography ; Simulators
  8. Source: Tsinghua Science and Technology ; Volume 14, Issue SUPPL. 1 , 2009 , Pages 108-115 ; 10070214 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S1007021409700768