Abstract
Fixed and orbiting scrolls of scroll compressor components have spiral grooves known as scroll wraps. High-precision contour milling using end mills is the best method to produce these scrolls. The aim of our present work is to recognize the mechanism of tool wear on end mills in bottom face machining and to reduce tool wear in highly efficient milling. This paper describes an effective coolant supply system to the cutting point and an appropriate tool geometry developed in the study. The following conclusions can be drawn: (1) By supplying coolant to the cutting edge through the center hole of the tool at a cutting speed of 230 m/min, the wear rate of the flank wear can be reduced to approximately 1/50 of the wear observed in conventional coolant supply. (2) The optimal back clearance angle is 5° for abrasive resistance in the turning operation. (3) By applying 5° to the back clearance angle, the wear rate of the corner edge can be reduced to 1/6 of that observed when the back clearance angle was 15°.
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Kato, K., Takeuchi, Y., Maeda, Y. et al. High-precision and high-efficiency machining of scroll compressor components. Int J Adv Manuf Technol 27, 260–267 (2005). https://doi.org/10.1007/s00170-004-2176-6
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DOI: https://doi.org/10.1007/s00170-004-2176-6