Experimental and numerical study of section restriction effects on filling behavior in low-pressure aluminum casting
Article dans une revue avec comité de lecture
Date
2018Journal
Journal of Materials Processing TechnologyAbstract
The molten metal flow under low-pressure filling was investigated both experimentally and numerically inside sand molds with different cross sections and different pressure ramps. The proposed fluid dynamics simulation predicts quantitatively the observed filling oscillations. An analytical model is developed to link the over-height with the geometrical restriction and the pressure ramp. The calculated over-height is proportional to the ramp and non-linearly impacted by the section change as confirmed by the experimental results.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureThe sand mold 3D printing technologies enable the manufacturing of molds with great dimensional accuracy. However, the roughness of as-cast components is higher when cast in a 3D printed mold rather than in a traditional ...
-
Article dans une revue avec comité de lectureIn aluminum low-pressure sand casting process, filling oscillations are observed when the metal front reaches a section change in a part. The effect of geometry on the filling oscillations is primary considered experimentally, ...
-
Article dans une revue avec comité de lecture4D printing of functional energy generation/absorption structures by material extrusion technique can capitalize on the exciting applications in intelligent damping devices and patterns to deform spontaneously. This paper ...
-
Article dans une revue avec comité de lectureBUKKAPATNAM, Satish T.S.; EL AMRI, Iskander; EL MANSORI, Mohamed; CHEGDANI, Faissal (Elsevier, 2019)This paper aims to explore the thermal influence on the micro-tribo-mechanical behavior of natural fiber composites. Nanoindentation and scratch-test are used to characterize flax fibers reinforced polypropylene (PP) ...
-
Article dans une revue avec comité de lectureDEMIRCI, Ibrahim; MEZGHANI, Sabeur; YOUSFI, Mohammed; EL MANSORI, Mohamed (American Society of Mechanical Engineers, 2014-01)Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for ...