Investigating surface roughness of ZE41 magnesium alloy cast by low-pressure sand casting process
TypeArticles dans des revues avec comité de lecture
The 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 sand mold. Coating the inner cavity is an efficient solution but can be costly and, in the narrowest cavities, not achievable. Finding a procedure to reduce the as-cast roughness without coating would ease the casting procedures. In the present work, surface analysis of ZE41 magnesium alloy is presented after being cast in 3D printed furan sand molds without coating using the low-pressure casting process. The molten metal temperature was measured during casting at different positions along the cast cavity. The as-cast surface roughness was correlated to the molten metal temperature and solid fraction at the time of contact against the sand mold surface.
Showing items related by title, author, creator and subject.
Experimental and numerical study of section restriction effects on filling behavior in low-pressure aluminum casting SANITAS, Antonin; BEDEL, Marie; EL MANSORI, Mohamed (Elsevier BV, 2018)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 ...
BEDEL, Marie; SANITAS, Antonin; EL MANSORI, Mohamed (Elsevier, 2019)In 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, ...
CONIGLIO, Nicolas; MEZGHANI, Sabeur; EL MANSORI, Mohamed; CABRERO, J. (Elsevier, 2018)Surface texturation at micro- and meso-scales plays an important role in applications where cosmetic, aesthetic and self-cleaning functionalities are specified. This research paper deals with a multiscale surface, in which ...
CONIGLIO, Nicolas; SIVARUPAN, T.; EL MANSORI, Mohamed (SPRINGER, 2018)The development of sand mold three-dimensional printing technologies enables the manufacturing of molds without the use of a physical model. However, the effects of the three-dimensional printing process parameters on the ...
SPITZ, N.; CONIGLIO, Nicolas; EL MANSORI, Mohamed; MONTAGNE, Alex; MEZGHANI, Sabeur (Elsevier, 2018)The sticking of the concrete on metallic formworks during building construction generates many concrete wall defects. Several solutions have been proposed, among which surface lubrication and polymeric coatings are commonly ...