Abstract
Carbon fiber reinforced plastic (CFRP) offers excellent mechanical properties, such as high strength, light weight, which makes it widely used in aerospace, transportation, machineries, and industrial applications. However, because of its anisotropic mechanical properties, high hardness, high strength, and poor thermal conductivity, the traditional processing methods are gradually unable to meet the processing needs. Except delamination, glitches, and tearing during processing, there are also other defects, like severe tool wear, larger cutting force, and higher cutting temperature, which make the tool life shortened. The machinability of CFRP materials using conventional machining (CM) techniques has seen a limited improvement over the years. Rotary ultrasonic machining (RUM) is an advanced machining process, which has shown to have specific advantages especially in the machining of CFRP. Many experimental investigations on cutting force in RUM of CFRP have been reported. However, in the literature, there are no reports on the development of a cutting force model for flat surface rotary ultrasonic machining, i.e., rotary ultrasonic face grinding (RUFG). In order to reveal the mechanism of grinding force reduction in RUFG of CFRP, based on material properties of CFRP, the brittle fracture theory approach was adopted and a cutting force model was developed for CFRP in RUFG process. The experiments were carried out and found the affect of the input variables for the cutting force in RUFG. The results were analyzed and discussed. The trends of predicted effects of input variables on cutting force agree well with the trends determined experimentally. Compared with the experimental results, the developed cutting force model was regarded as reasonable.
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Liu, S., Chen, T. & Wu, C. Rotary ultrasonic face grinding of carbon fiber reinforced plastic (CFRP): a study on cutting force model. Int J Adv Manuf Technol 89, 847–856 (2017). https://doi.org/10.1007/s00170-016-9151-x
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DOI: https://doi.org/10.1007/s00170-016-9151-x