Minimum surface roughness using rule-based modeling of the vibratory finishing process in a high-frequency bowl system

Previous work on vibratory finishing has led to a better understanding and establishment of the mass finishing processes. Despite the sustained efforts made to date, vibratory finishing remains a field where the findings made have been based largely on empirical evidence. Through force sensor analyses and scanning electron microscopy imaging, in this work a successful attempt has been made in uncovering the underlying science—through first principles of Newtonian physics—behind vibratory finishing, providing explanations for the observations made. Trials were carried out in a high-frequency vibratory bowl, the first of its kind in the vibratory finishing industry. Through these trials, mathematical formulations have been derived, essentially providing a reliable way for the industry to estimate the process cycle time.

Automatisierte Werkzeugverschleißmessung beim robotergeführten Gleitschleifen/Process monitoring with object detection Automated tool wear measurement in robotguided drag finishing

Die Werkzeuge beim Gleitschleifen sind Schleifkörper. Infolge ihrer Nutzung verschleißen die Schleifkörper, wodurch ihr Einsatzverhalten verändert wird. Zur Aufrechterhaltung gleichbleibender Bearbeitungsergebnisse sollte der Verschleißzustand daher regelmäßig überprüft und Schleifkörper gegebenenfalls gewechselt werden. In diesem Beitrag wird das Konzept eines Messsystems zur automatisierten Messung des Schleifkörperverschleißes vorgestellt. Der Einsatz des Messsystems kann zur Erhöhung des Automatisierungsgrades und somit der Wirtschaftlichkeit von industriellen Gleitschleifbearbeitungen beitragen. Insbesondere gilt dies für vollautomatisierte Prozesse wie dem robotergeführten Gleitschleifen.   In vibratory finishing abrasive media is used as tools. Due to the use the abrasive media wears, which changes the performance of the media. To maintain consistent finishing results, the state of wear should therefore be monitored and media should be replaced if necessary. In this paper the concept of a measurement system for automated measurement of media wear is presented. The use of the measurement system can contribute to increase the degree of automation and thus the profitability of industrial vibratory finishing operations. In particular this applies for fully automated processes like the robot-guided drag finishing.