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Self-propelled rotary tool (SPRT) is a general term which is usually entitled to a family of round cutting tools in the form of circular inserts that spin around their axis during machining operation (Shaw et al. 1952; Venuvinod and Rubenstein 1983; Armarego et al. 1991, 1993, 1994a, b). The SPRTs offer a superior performance over the conventionally used cutting tools where the tool rotates continuously which provides a fresh part of the cutting edge into the cutting area. The insert spinning around its center provides a way for carrying the fluid to the tool point as in the case of a journal bearing. This rotation allows the tool to be cooled down; hence, it significantly reduces the adverse effects of temperature on the tool life as well as the workpiece surface quality. In addition, employment of self-propelled rotary tools results in a higher material removal rate (MRR) in machining difficult to cut materials such as...
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References
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Kishawy H, Becze C, McIntosh D (2004) Tool performance and attainable surface quality during the machining of aerospace alloys using self-propelled rotary tools. J Mater Process Technol 152(3):266–271
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Kishawy, H.A. (2018). Self-Propelled Rotary Tool. In: The International Academy for Production (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35950-7_16820-1
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DOI: https://doi.org/10.1007/978-3-642-35950-7_16820-1
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