Real-time Diagnosis of Micro Powder Injection Molding Using Integrated Ultrasonic Sensors

Abstract

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Fabrication and Characterizations of PbZrxTi1-xO3 (PZT) Ultrasonic Sensing Chips

“…In our previous studies, the effects of UV light [7] and poling voltage [19] have been investigated on the film quality of PZT films, while in this study, the thickness of a Ti substrate and the number of coated layers were examined. Different from previous studies [20][21][22], multiple material, electrical characterizations, and ultrasonic detection were performed [23,24]. Results indicate that PZT films with certain surface microstructures and material properties could achieve ultrasonic sensing [25].…”

Micro metal injection molding (MicroMIM)

“…Moreover, micro-specific auxiliary injection molding devices were developed and launched and the conditions relevant for the sintering of micro-parts were investigated . Among the relatively few research activities on MicroPIM in North America during recent years were analyses of ultrasonic PIM feedstock flow behavior (Cheng et al, 2007). Economic studies and MicroCIM experiments, with an emphasis on the molding of wire-eroded mold inserts using commercial aluminum oxide feedstocks (Catamold AOF), have also been carried out (Atre et al, 2006).…”

A review of micro-powder injection moulding as a microfabrication technique

“…As seen from are used for producing complex-shaped components. Another example is the integration of ultrasonic sensors onto the micromould insert for real-time process diagnosis of μPIM of ceramic components [101].…”