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7451 |
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Friday, May 06, 2022, Hall G2 10:20 AM New Processes II |
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Ultrasonic atomization as an alternative route for metal powder production |
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Pawel Sokolowski* / Wroclaw University of Science and Technology, Poland Adam Sajbura / Wroclaw University of Science and Technology, Poland Marcin Korzeniowski/ Wroclaw University of Science and Technology, Poland Pawel Kustron/ Wroclaw University of Science and Technology, Poland Tomasz Piwowarczyk/ Wroclaw University of Science and Technology, Poland |
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The use of metal powders is dynamically increasing in many different fields of research and industry. The development of additive manufacturing technology or innovative thermal spray processes still enhance the range of possible applications. This means that there is a big demand for high quality metal powder materials. This work concerns the development of an innovative technology of metal powder manufacturing concerning the use of so-called ultrasonic atomization. The designing and testing of ultrasonic system and working tool, in order to generate appropriate ultrasonic field responsible for metal atomization, are firstly discussed. Then, the ultrasonic waves are implemented for breaking up the stream of molten metal into single droplets. The phenomena that take place with molten metal in an ultrasonic field are addressed. The influence of main physical and mechanical parameters of an ultrasonic field, i.e. power, frequency, vibration distribution and amplitude, on powder properties are briefly discussed. Finally, the preliminary produced powders and their basic properties, like particle size distribution, morphology and density, are presented. |