5 May 2005 Development and optimization of novel sensors for inline measurement of sand filling and compaction stages in lost foam casting
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Abstract
The lost foam casting (LFC), or expendable pattern casting, process is employed worldwide in foundries as an efficient casting technology that offers the advantages of consolidation of components, reduced machining, and recirculation of casting mold material. Currently, many foundries develop a schedule of sand raining flow rates and flask excitation accelerations for each specific pattern through an often-lengthy trial and error procedure. During casting, a single flask acceleration measurement is typically the only measurement by which the sand compaction is monitored. The current research focuses on developing an array of measurement tools to be used in measuring parameters critical to the sand compaction stage of the lost foam casting process to aid in the development of filling and vibration schedules as well as to provide additional inline measurements during foundry operation. In particular, the study focuses on the use of minimally intrusive transducers placed inline to provide direct feedback that can be then used in both passive and active process control.
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Matthew J. Whelan, Matthew J. Whelan, Kerop D. Janoyan, Kerop D. Janoyan, } "Development and optimization of novel sensors for inline measurement of sand filling and compaction stages in lost foam casting", Proc. SPIE 5762, Smart Structures and Materials 2005: Industrial and Commercial Applications of Smart Structures Technologies, (5 May 2005); doi: 10.1117/12.600151; https://doi.org/10.1117/12.600151
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