Development of a low-cost wax injection mold with high cooling efficiency
- 116 Downloads
Reduction of the time and cost during the research and development stage of a new product is an important issue. Rapid tooling techniques can reduce the time to market compared to conventional machining approaches. In general, reduction in cooling time plays an important role on cycle time in manufacturing time. Wax injection mold fabricated from aluminum-filled epoxy resin can be employed for small-batch productions of wax patterns. However, the cooling time is much longer compared to metallic wax injection molds due to poorer thermal conductivity. In this study, three kinds of cooling-channel layouts were employed to fabricate wax injection molds for low-pressure wax injection molding using rapid prototyping and rapid tooling techniques. The effects of three kinds of wax injection molds on the cooling time during the low-pressure wax injection molding were investigated. It was found that the reduction in cooling time about 87% can be obtained when a wax injection mold with conformal cooling channels is compared to a conventional wax injection mold fabricated by Al-filled epoxy resin. The manufacturing cost reduction for a wax injection mold with high cooling efficiency about 63% can be obtained using the method proposed in this work.
KeywordsWax injection mold Low-pressure wax injection molding Cooling time Cooling channels
Unable to display preview. Download preview PDF.
- 10.Wang D, He B, Li F, Wang F, Sun B Experimental and numerical analysis on core deflection during wax injection. Mater Manuf Process 28(11):1209–1214Google Scholar
- 15.Song XH, Li W, Song PH, Su QY, Wei QS, Shi YS, Liu K, Liu WG (2015a) Selective laser sintering of aliphatic-polycarbonate/hydroxyapatite composite scaffolds for medical applications. Int J Adv Manuf Technol 81(1):15–25Google Scholar
- 18.Jafari H, Idris MH, Ourdjini A (2013) A Review of Ceramic Shell Investment Casting of Magnesium Alloys and Mold-Metal Reaction Suppression. Mater Manuf Process 28(8):843–856Google Scholar
- 19.Chen Y, Zhao E, Kong F, Xiao S Fabrication of thin-walled high-temperature titanium alloy component by investment casting. Mater Manuf Process 28(6):605–609Google Scholar
- 20.Wang D, He B, Li F, Sun B Cavity pressure and dimensional accuracy analysis of wax patterns for investment casting. Mater Manuf Process 28(6):637–642Google Scholar
- 21.Dong YW, Bu K, Dou YG, Zhang DH Determination of wax pattern die profile for investment casting of turbine blades. Trans Nonferrous Metals Soci China 21(2):378–387Google Scholar
- 22.Ahn D, Kweon JH, Kwon S, Song J, Lee S Representation of surface roughness in fused deposition modeling. J Mater Process Technol 209(15–16):5593–5600Google Scholar