Abstract
Composite Fiber Reinforced Plastics (CFRP) with glass fibers are widely used as they combine high toughness and specific strength, good resistance to corrosion, fatigue, temperature, and moisture. Drilling composite materials is one of the most common and complicated operations of composite machining. The complexity of drilling consists of the cutting tool's low durability and the formation of defects on the part surface. Tool wear is accompanied by changes in the microgeometry of the cutting edge, i.e., the surface between the blade's front and back surfaces. The microgeometry of the cutting edge and, consequently, the contact conditions of the tool with the material constantly change in the process of cutting, which affects the technological forces and machining quality. Experimental studies of fiberglass drilling with an HSS spiral drill bit were performed in this work. The influence of cutting edge microgeometry on the machining quality parameters has been established, and criteria for their evaluation have been selected. The information obtained as a result of the study will be used to analyze drill geometry and cutting modes on the microgeometry of the cutting edge, cutting forces, and processing quality, as well as to optimize drills and solve problems arising in composite drilling.
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Adamenko, Y., Besarabets, Y., Maidaniuk, S., Plivak, O., Adamenko, D. (2023). Influence of Drill Microgeometry on the Quality of the Machined Fiberglass Surface. In: Tonkonogyi, V., Ivanov, V., Trojanowska, J., Oborskyi, G., Pavlenko, I. (eds) Advanced Manufacturing Processes IV. InterPartner 2022. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-16651-8_30
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