The use of X-Rays monitoring techniques for studying the evolution of the filling stage in gravity casting processes is relatively documented in literature. This paper presents the first trial for developing a X-Rays monitoring device, suitable for physically simulating the diecasting process of a molten Al alloy. By means of an inert gas, the molten alloy (an Al-Si eutectic one) is forced to fill under pressure a graphite die, placed into a NDT X-Rays cabinet. A digital camera records the radiographic images collected on a fluorescent screen. The frames of the X-Rays video produced are then compared with the quality and the structure of the castings produced, as well as with the results achieved by numerical simulation of the process.
PHYSICAL SIMULATION OF THE DIECASTING PROCESS
BONOLLO, FRANCO;
2004
Abstract
The use of X-Rays monitoring techniques for studying the evolution of the filling stage in gravity casting processes is relatively documented in literature. This paper presents the first trial for developing a X-Rays monitoring device, suitable for physically simulating the diecasting process of a molten Al alloy. By means of an inert gas, the molten alloy (an Al-Si eutectic one) is forced to fill under pressure a graphite die, placed into a NDT X-Rays cabinet. A digital camera records the radiographic images collected on a fluorescent screen. The frames of the X-Rays video produced are then compared with the quality and the structure of the castings produced, as well as with the results achieved by numerical simulation of the process.
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