In the drag finishing process, high-quality workpieces are clamped in so-called drag finishing machines and describe a planetary motion through an abrasive medium. For this process, OTEC has developed special techniques to fulfil a wide variety of customer requirements. The use of a dual drive system with two electric motors enables workpieces, including the cutting edges of carbide drills, to be rounded uniformly, giving a considerable increase in tool life. By positioning the holders at an angle, the quality of polishing on the face of the workpiece, e.g. in the case of forming tools, can be improved considerably. Drag finishing machines from OTEC are available for both wet and dry processing. The drag finishing process is especially suitable for applications in: the toolmaking industry (e.g. for rounding cutting edges and polishing the chip flutes of carbide tools to a high shine) forming tools (for smoothing and polishing the pressing and forming surfaces)
El SF PULSFINISH con el nuevo de movimiento por pulsos se desarrolló pensando en el perfil de exigencias de la fabricación en línea en la industria del automóvil o de la industria moderna de la herramienta. Mediante el proceso PULSFINISH puede cumplir de forma fiable las exigencias extremas de la fabricación de grandes series en lo que respecta a seguridad de proceso, velocidad y calidad de mecanizado. Por ejemplo es posible desbarbar, redondear y alisar desde por ej. Rpk 0,2 µm a Rpk 0,1µm en menos de un minuto y en una sola fase de trabajo. Los contornos de la pieza se mantienen muy bien durante el mismo.
The SF stream finishing machine (also referred to as an immersion polishing unit) is a completely new concept which features short processing times, easy automation and excellent reliability as well as providing a first-class mirror finish even inside the flutes. It is also called spindle finishing machine.
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