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The main objective of this paper is to show the advantages of advanced manufacturing, such as high speed machining (HSM), for the active plates of injection molds. The goal of the experiment is to push the machine and the tools to the limit without reducing the surface quality of the manufactured part. The parts that are machined in this experiment are the active components of bucket injection mold. The mold core and nest is composed of several plates that have to form a whole when mounted together.
The aim of this paper is to look closer at the rheological properties of plastics and their impact on technology in the plastics processing industry. The paper focuses on the influence of viscosity of the material on filling the mould cavity. Four materials were tested with the settings of process parameters with different viscosity. Using simulation software of Moldex3D, we can see the effect of change in viscosity in the material to be filled.
The ability of heat to flow across the casting and through the interface from the casting to the mold directly affects the evolution of solidification and plays a notable role in determining the freezing conditions within the casting, mainly in foundry systems of high thermal diffusivity such as chill castings. An experimental procedure has been utilized to measure the formation process of an interfacial gap and metal-mould interfacial movement during solidification of hollow cylindrical castings of Al-4.5 % Cu alloy cast in CO2-sand mould. Heat flow between the casting and the mould during solidification of Al-4.5 % Cu alloy in CO2-sand mould was assessed using an inverse modeling technique. The analysis yielded the interfacial heat flux (q), heat transfer coefficient (h) and the surface temperatures of the casting and the mould during solidification of the casting. The peak heat flux was incorporated as a dimensionless number and modeled as a function of the thermal diffusivities of the casting and the mould materials. Heat flux transients were normalized with respect to the peak heat flux and modeled as a function of time. The heat flux model proposed was to estimate the heat flux transients during solidification of Al-4.5 % Cu alloy cast in CO2-sand moulds.
. pol. Biol. 11: 112-118. Hoshino, T., Tkachenko, O.B., Tronsmo, A.M., Kawakami, A., Morita, N., Ohgiya, S., Ishizaki, K. & Matsumoto, N. 2001. Temperature sensitivity and freezing resistance among isolates of Typhula ishikariensis from Russia. - Búuísindi 14: 61-65. Hoshino, T., Saito, I. & Tronsmo, A.M. 2003. Two new snow mold fungi from Svalbard. - Lidia 6: 30-32. Hoshino, T., Gaad, M., Kiriaki, M. & Yumoto, I. 2004a. A snow mold fungus, Typhula incarnata from the Faroe Islands. - Acta bot. isl. 14: 71-76. Hoshino, T., Kiriaki, M., Yumoto, I & Kawakami, A. 2004