THE INFLUENCE OF TECHNICAL AND TECHNOLOGICAL PARAMETERS OF CNC MILLING ON THE SURFACE QUALITY OF BEECH PLYWOOD
Keywords:
surface roughness; CNC milling; Keyence VHX microscope; plywood; feed speed; tool geometryAbstract
The milling process is one of the most used methods for machining wood and wood-based materials. This paper is focused on the analysis of the effect of technical and technological parameters on the surface quality of plywood. Beech plywood was used in the experiment, and the samples were machined using a 5-axis CNC machining centre under different feed speed settings and tool variations. Surface roughness (Ra, Rz, Rp, and Rv) was measured using a Keyence VHX-7000 digital microscope. The results show that by an appropriate combination of technical and technological parameters, it is possible to minimise surface roughness and eliminate defects such as fibre pull-out, fuzziness or surface irregularities. The paper contributes to a better understanding of the relation between CNC milling parameters and the resulting surface quality, thereby providing valuable information for optimising the production process in the woodworking industry.
References
Aras, O., Sofuoğlu, S.D., 2024. Analyze the effects of CNC machining parameters on the surface roughness (Rz) of Anatolian chestnut. Ağaç ve Orman 5(1), 42–50.
Atanasov, V., 2021. Experimental research on the cutting force during longitudinal milling of solid wood and wood-based composites. Acta Facultatis Xylologiae 63, 73–84.
Bal, B.C., Mengeloğlu, F., Akçakaya, E., Gündeş, Z., 2022. Effects of cutter parameters on surface roughness of fiberboard and energy consumption of CNC machine. Kastamonu University Journal of Forestry Faculty 22(3), 264–272.
Bendikiene, R., Keturakis, G., 2016. The effect of tool wear and planning parameters on birch wood surface roughness. Wood Research 61, 791–798.
Benkreif, R., Brahmia, F.Z., Csiha, C., 2021. Influence of moisture content on the contact angle and surface tension measured on birch wood surfaces. European Journal of Wood and Wood Products 79(4), 907–913.
Brenci, L.-M., Gurău, L., 2024. A stratified characterization of surface quality of beech processed by profile milling. Applied Sciences 14(1), 129.
Budakçı, M., İlçe, A.C., Korkut, D.S., Gürleyen, T., 2011. Evaluating the surface roughness of heat-treated wood cut with different circular saws. BioResources 6(4), 4247–4258.
Çakiroğlu, E.O., Demir, A., Aydin, İ., 2019. Determination of the optimum feed speed and spindle speed depending on the surface roughness of some wood species processed with CNC machine. Journal of Anatolian Environmental and Animal Sciences 4(4), 598–601.
Csanády, E., Magoss, E., Tolvaj, L., 2015. Surface roughness of wood. In: Quality of Machined Wood Surfaces. Springer, Cham, 183–236.
Curti, R., Marcon, B., Denaud, L., Togni, M., Goli, G., 2021. Generalized cutting force model for peripheral milling of wood, based on the effect of density, uncut chip cross section, grain orientation and tool helix angle. European Journal of Wood and Wood Products 79, 667–678.
Darmawan, W., Azhari, M., Rahayu, I.S., Nandika, D., Dumasari, L., Malela, I., Nishio, S., 2018. The chips generated during up-milling and down-milling of pine wood by helical router bits. Journal of the Indian Academy of Wood Science 15(2), 172–180.
Demir, A., Çakiroğlu, E.O., Aydin, I., 2022. Effects of CNC processing parameters on surface quality of wood-based panels used in furniture industry. Wood Industry 73(4), 363–371.
De Moura, L., Hernández, R., 2006. Characteristics of sugar maple wood surfaces produced by helical planing. Wood & Fiber Science 38(1), 166–178.
De Castro Saiki, L.E., Gomes, G.F., 2024. Understanding and mitigating delamination in composite materials: A comprehensive review. Mechanics of Advanced Materials and Structures 31(30), 13147–13167.
Djurković, M., Milosavljević, M.M., Mihailović, V., Danon, G., 2019. Tool wear impacts on cutting power and surface quality in peripheral wood milling. Wood Design and Technology 8, 9–17.
Guo, X., Wang, J., Buck, D., Zhu, Z., Ekevad, M., 2021. Cutting forces and cutting quality in the up-milling of solid wood using ceramic cutting tools. International Journal of Advanced Manufacturing Technology 114(5), 1575–1584.
Hanincová, L., Procházka, J., Novák, V., 2024. Comparative analysis of cutting forces in CNC milling of MDF: The role of tool coatings, cutting speed, and feed per tooth. Coatings 14, 1085.
Ibrišević, A., Obučina, M., Hajdarević, S., Mihulja, G., Kuzman, M.K., Busuladžić, I., 2023. Effects of cutting parameters and grain direction on surface quality of three wood species obtained by CNC milling. Bulletin of the Transylvania University of Brasov, Series II: Forestry • Wood Industry • Agricultural Food Engineering 16(65 3), 127–140.
Karim, Z., Azuan, S.A.S., Yasir, A.M.S., 2013. A study on tool wear and surface finish by applying positive and negative rake angle during machining. Australian Journal of Basic and Applied Sciences 7(10), 46–51.
Kminiak, R., 2014. The influence of the saw blade design on the quality of the created surface during cross-sawing of spruce lumber on a mitre saw. Acta Facultatis Xylologiae Zvolen 56(2), 87–96.
Koleda, P., Barcík, Š., Svoreň, J., Naščák, Ľ., Dobrík, A., 2019. Influence of cutting wedge treatment on cutting power, machined surface quality, and cutting edge wear when plane milling oak wood. BioResources 14(4), 9271–9286.
Kopecký, Z., Hlasková, L., Solař, A., Nesázal, P., 2019. Cutting forces in quasi-orthogonal CNC milling. Wood Research 64(5), 879–890.
Korčok, M., Koleda, P., Barcík, Š., Vančo, M., 2018. Effects of technical and technological parameters on the surface quality when milling thermally modified European oak wood. BioResources 13(4), 8569–8577.
Li, Y.W., Sun, Y.S., Zhou, X.G., 2014. Theoretical analysis and experimental verification that influence factors of climb and conventional milling on surface roughness. Applied Mechanics and Materials 459, 407–412.
Musolff, F.C., Malburg, C.M., 2021. The Surface Texture Answer Book. Digital Metrology Solutions, Indianapolis, 423 pp.
Pelit, H., Korkmaz, M., Budakçı, M., 2021. Surface roughness of thermally treated wood cut with different parameters in CNC router machine. BioResources 16(3), 5133–5147.
Pérez-Salinas, C., Castro-Miniguano, C., Moya-Moya, E., Goyos, L., 2023. Analysis of surface roughness and delamination factor applied to the drilling of hybrid polymeric composite materials by the Taguchi method. Materials Today: Proceedings 103, 999–1006.
Pinkowski, G., Piernik, M., Wołpiuk, M., Krauss, A., 2024. Effect of chip thickness and tool wear on surface roughness and cutting power during up-milling wood of different density. BioResources 19(4), 9234–9248.
Pinkowski, G., Szymański, W., Krauss, A., Stefanowski, S., 2018. The effect of feed speed and rotation speed of plane milling on the surface roughness of beech wood. Research Papers of Poznań University of Life Sciences – Forestry 70, 59–69.
Sedlecký, M., Kvietková, M., Kminiak, R., Kaplan, L., 2018. Medium-density fiberboard and edge-glued panel after edge milling – surface waviness after machining with different parameters measured by contact and contactless method. Wood Research 63, 683–698.
Siklienka, M., Kminiak, R., Šustek, J., Jankech, A., 2017. Cutting and woodworking. Technical University in Zvolen, Zvolen, 348 pp.
Singer, H., Özşahin, Ş., 2022. Prioritization of factors affecting surface roughness of wood and wood-based materials in CNC machining: A fuzzy analytic hierarchy process model. Wood Material Science & Engineering 17(2), 63–71.
Smajić, S., Jovanović, J., 2021. Influence of different machining on the roughness of oak wood. Bulletin of the Transylvania University of Brasov 14(63 1), 101–108.
Śmietańska, K., Podziewski, P., Bator, M., Górski, J., 2020. Automated monitoring of delamination factor during up- (conventional) and down- (climb) milling of melamine-faced MDF using image processing methods. European Journal of Wood and Wood Products 78(3), 613–615.
Szwajka, K., Trzepieciński, T., 2016. Effect of tool material on tool wear and delamination during machining of particleboard. Journal of Wood Science 62(4), 305–315.
Trzepieciński, T., Szwajka, K., Zielińska-Szwajka, J., Szewczyk, M., 2025. Current trends in monitoring and analysis of tool wear and delamination in wood-based panels drilling. Machines 13(3), 249.
Wang, J., Wu, Z., Zhang, F., 2025. Research on the end-milling surface quality of Paulownia based on response surface model in terms of force and chip morphology. Forests 15(2), 325.
Wei, W., Cong, R., Xue, T., Abraham, A.D., Yang, C., 2021. Surface roughness and chip morphology of wood-plastic composites manufactured via high-speed milling. BioResources 16(3), 5733–5745.
Yang, C., Liu, T., Ma, Y., Qu, W., Ding, Y., Zhang, T., Song, W., 2023. Study of the movement of chips during pine wood milling. Forests 14(4), 849.
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Copyright (c) 2025 Veronika Šugárová, Lukáš Adamčík, Richard Kminiak
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