論文

An innovative two-step freeform finishing method is presented, combining fluid jet and precessed bonnet polishing on a common CNC platform. Corrective and super-smoothing capabilities are demonstrated, with application to manufacturing of hard X-ray replication moulds. © OSA 2013.

An innovative two-step freeform finishing method is presented, combining fluid jet and precessed bonnet polishing on a common CNC platform. Corrective and super-smoothing capabilities are demonstrated, with application to manufacturing of hard X-ray replication moulds. © OSA 2013.

It is strongly requested to develop a new CAM system to shorten the drill fabrication time, to reduce material costs, and to create a new drill configuration by predicting its characteristics. Current drill shape prediction system cannot necessarily treat drill cross-section shape including the cutting edge, groove and so on, mathematically. The system becomes practical if these drill specification is mathematically formulated. The study reports the development of a system to predict not only cross-section shape but also various parameters from grinding wheel data of drill making.

In recent years, the drill used to make holes is expected to exert both high machining accuracy and good processing capability. In order to meet those requirements, it is necessary to develop a new drill shape with good properties requested by designers. There is a strong need for a new system to shorten the drill fabrication time, to reduce material costs, and to create new drill configurations by predicting their characteristics. Current drill shape prediction systems cannot comprehensively and mathematically treat drill cross-section shape including the cutting edge, groove and so on. The prediction system would become more practical if the drill specification was mathematically formulated. This study reports the development of a system to predict not only the cross-sectional shape but also various parameters from the information of grinding wheels used in drill fabrication. Furthermore, this study proposes the new system to predict the most suitable grinding wheel setting from the grinding wheel shape and some drill specifications as the reverse process.