<doi_batch xmlns="http://www.crossref.org/schema/4.4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="4.4.0"><head><doi_batch_id>90b9a2a9-3cdd-4e9e-8270-cfccb48ed248</doi_batch_id><timestamp>20240523075726784</timestamp><depositor><depositor_name>naun:naun</depositor_name><email_address>mdt@crossref.org</email_address></depositor><registrant>MDT Deposit</registrant></head><body><journal><journal_metadata language="en"><full_title>International Journal of Education and Information Technologies</full_title><issn media_type="electronic">2074-1316</issn><archive_locations><archive name="Portico"/></archive_locations><doi_data><doi>10.46300/9109</doi><resource>http://www.naun.org/cms.action?id=3037</resource></doi_data></journal_metadata><journal_issue><publication_date media_type="online"><month>3</month><day>12</day><year>2024</year></publication_date><publication_date media_type="print"><month>3</month><day>12</day><year>2024</year></publication_date><journal_volume><volume>18</volume><doi_data><doi>10.46300/9109.2024.18</doi><resource>https://npublications.com/journals/educationinformation/2024.php</resource></doi_data></journal_volume></journal_issue><journal_article language="en"><titles><title>The Development Cycle of Machining Operations on an Educational CNC Machine</title></titles><contributors><person_name sequence="first" contributor_role="author"><given_name>Nicuşor</given_name><surname>Baroiu</surname><affiliation>Dunarea de Jos University of Galati, Faculty of Engineering, Department of Manufacturing Engineering, 111 Domneasca St., 800008, Galati, Romania</affiliation></person_name><person_name sequence="additional" contributor_role="author"><given_name>Georgiana</given_name><surname>Novac</surname><affiliation>Dunarea de Jos University of Galati, Faculty of Engineering, Department of Manufacturing Engineering, 111 Domneasca St., 800008, Galati, Romania</affiliation></person_name><person_name sequence="additional" contributor_role="author"><given_name>Valentin</given_name><surname>Tăbăcaru</surname><affiliation>Dunarea de Jos University of Galati, Faculty of Engineering, Department of Manufacturing Engineering, 111 Domneasca St., 800008, Galati, Romania</affiliation></person_name><person_name sequence="additional" contributor_role="author"><given_name>Georgiana-Alexandra</given_name><surname>Moroșanu</surname><affiliation>Dunarea de Jos University of Galati, Faculty of Engineering, Department of Thermal Systems and Automotive Engineering, 111 Domneasca St., 800008, Galati, Romania</affiliation></person_name></contributors><jats:abstract xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1"><jats:p>The paper presents a technological analysis, the phases and working methods, as well as the parameters of the processing cycle of a flange for a high-pressure hydraulic gear pump, which has the code FHP-05-12-24, made of polymeric material of ERTALON 66 SA type. The processing was made by cutting with the help of an educational milling and drilling machine with numerical control called EMCO MILL 55 CNC. The commands were programmed through a computer interface, using a conventional numerical code that commands the same kinematic chains, defining specific elements such as the geometric structure of the part, the technological conditions, the structure of the CNC kinematics, the calculation of the programmable coordinates, the parameters of the cutting tools and the parameters of the cutting regime. Based on the characteristics of the polymer material, but also on the identification of programmable functions and routines, the complete development cycle of the complex part processing operations was defined using special functions dedicated to the drilling and milling processes of the profiled surfaces. The part program structure contains program blocks associated with each stage and machining tools. The purpose of the study is to highlight, at an early stage, how students and young researchers can use computer numerical control (CNC) machines, which can be used as a support for the physical processing of complex surfaces, possibly obtained by digitizing and measuring data through a digital correlation based on specialized software products (e.g. GOM Scan, GOM Inspect, FEM analysis, etc.).</jats:p></jats:abstract><publication_date media_type="online"><month>5</month><day>23</day><year>2024</year></publication_date><publication_date media_type="print"><month>5</month><day>23</day><year>2024</year></publication_date><pages><first_page>44</first_page><last_page>54</last_page></pages><publisher_item><item_number item_number_type="article_number">5</item_number></publisher_item><ai:program xmlns:ai="http://www.crossref.org/AccessIndicators.xsd" name="AccessIndicators"><ai:free_to_read start_date="2024-05-23"/><ai:license_ref applies_to="am" start_date="2024-05-23">https://npublications.com/journals/educationinformation/2024/a102008-005(2024).pdf</ai:license_ref></ai:program><archive_locations><archive name="Portico"/></archive_locations><doi_data><doi>10.46300/9109.2024.18.5</doi><resource>https://npublications.com/journals/educationinformation/2024/a102008-005(2024).pdf</resource></doi_data><citation_list><citation key="ref0"><unstructured_citation>S. Jeet, A. Barua, S. Kar, ”An overview on machining of engineering polymers”, International Journal of Scientific &amp; Engineering Research, Vol. 9, Issue 4, pp. 46-50, 2018. </unstructured_citation></citation><citation key="ref1"><doi>10.21825/scad.v2i1.20467</doi><unstructured_citation>R. Keresztes, G. Kalácska, L. Zsidai, Z. Dobrocsi, ”Machinability of engineering polymers”, Sustainable Construction and Design, pp. 106-114, 2011. </unstructured_citation></citation><citation key="ref2"><doi>10.1016/j.polymertesting.2021.107463</doi><unstructured_citation>Y. Dong, K. W. Yeung, W. C. Law, G. C. P. Tsui, X. Xie, C. Y. Tang, ”Towards a consistent methodology for testing the electromechanical performance of strip polymer composite actuators”, Polymer Testing, Vol. 106, pp. 1-9, DOI: https://doi.org/10.1016/j.polymertesting.2021.107463, 2022. </unstructured_citation></citation><citation key="ref3"><doi>10.1002/zamm.201200219</doi><unstructured_citation>C. Galeș, N. Baroiu, ”On the bending of plates in the electromagnetic theory of microstretch elasticity”, Zamm - Journal of Applied Mathematics and Mechanics, Vol. 93, Issue 1, pp. 1-17, DOI: https://doi.org/10.1002/zamm.201200219, 2013. </unstructured_citation></citation><citation key="ref4"><doi>10.3390/polym13010028</doi><unstructured_citation>A. Gnatowski, R. Gołebski, P. Sikora, ”Analysis of the impact of changes in thermomechanical properties of polymer materials on the machining process of gears”, Polymers, Vol. 13, Issue 28, pp. 1-16, DOI: https://doi.org/10.3390/polym13010028, 2021. </unstructured_citation></citation><citation key="ref5"><doi>10.15828/2075-8545-2023-15-2-139-151</doi><unstructured_citation>P. A. Yudaev, B. Tamboura, E. M. Chistyakov, ”Antistatic polymeric materials”, Nanotechnologies in construction, vol. 15(2), pp. 139-151, DOI: https://doi.org/10.15828/2075-8545-2023-15-2-139-151 2023. </unstructured_citation></citation><citation key="ref6"><unstructured_citation>Engineering Plastics - Mitsubishi Chemical Group, https://www.mcam.com/eu-en/products/engineeringplastics/. Accessed date: 05.01.2024. </unstructured_citation></citation><citation key="ref7"><doi>10.37358/mp.20.3.5390</doi><unstructured_citation>N. Baroiu, G. A. Costin, V. G. Teodor, D. Nedelcu, V. Tăbăcaru, ”Prediction of surface roughness in drilling of polymers using a geometrical model and artificial neural networks”, Materiale Plastice (Plastic Materials), Vol. 57, Issue 3, pp. 160-173, DOI: https://doi.org/10.37358/Mat.Plast.1964, 2020. </unstructured_citation></citation><citation key="ref8"><doi>10.1007/s00170-011-3464-6</doi><unstructured_citation>A. Uysal, M. Altan, E. Altan, ”Effects of cutting parameters on tool wear in drilling of polymer composite by Taguchi method”, International Journal of Advanced Manufacturing Technology, Vol. 58, pp. 915-921, DOI: https://doi.org/10.1007/s00170-011-3464-6, 2011. </unstructured_citation></citation><citation key="ref9"><doi>10.37358/mp.17.4.4925</doi><unstructured_citation>E. F. Beznea, I. Chirică, N. Baroiu, V. G. Teodor, ”Parametric study of experimental and numerical simulation of sandwich composite structures flexural behaviour”, Materiale Plastice (Plastic Materials), Vol. 54, Issue 4, pp. 682-688, DOI: https://doi.org/10.37358/MP.17.4.4925, 2017. </unstructured_citation></citation><citation key="ref10"><doi>10.17559/tv-20171120121636</doi><unstructured_citation>P. Boral, A. Stoic, M. Kljajin, ”Machining of spur gears using a special milling cutter”, Tehnicki vjesnik - Technical Gazette, Vol. 25, pp. 798-802, DOI: https://doi.org/10.17559/TV-20171120121636, 2018. </unstructured_citation></citation><citation key="ref11"><doi>10.12700/aph.18.7.2021.7.6</doi><unstructured_citation>B. Varga, B. Mikó, ”Impact of different CAM strategies and cutting parameters on machining free-form surfaces with ball-end milling tools in terms of micro and macro accuracy”, Acta Polytechnica Hungarica, Vol. 18, Issue 7, pp. 109-127, DOI: 10.12700/APH.18.7.2021.7.6, 2021. </unstructured_citation></citation><citation key="ref12"><doi>10.12700/aph.17.8.2020.8.12</doi><unstructured_citation>A. A. Petunin, A. P. Chentsov, ”Routing in CNC Cutting Machines: Engineering Constraints”, Acta Polytechnica Hungarica, Vol. 17, Issue 8, pp. 165-177, DOI: 10.12700/APH.17.8.2020.8.12, 2020. </unstructured_citation></citation><citation key="ref13"><doi>10.2478/amns-2024-0516</doi><unstructured_citation>S. Zhang, J. Bai, ”Research on CNC programming and machining process based on CAD/CAM technology”, Applied Mathematics and Nonlinear Sciences, vol. 9(1), pp. 1-18, DOI: https://doi.org/10.2478/amns-2024-0516, 2024. </unstructured_citation></citation><citation key="ref14"><doi>10.1155/2022/5397369</doi><unstructured_citation>X. Yan, ”Research and application of CNC machining method based on CAD/CAM/robot integration”, Advances in Multimedia, Vol. 2022, pp. 1-11, DOI: https://doi.org/10.1155/2022/5397369, 2022. </unstructured_citation></citation><citation key="ref15"><doi>10.1016/j.jii.2023.100482</doi><unstructured_citation>A. Martins, J. Lucas, H. Costelha, C Neves, ”CNC machines integration in smart factories using OPC UA”, Journal of Industrial Information Integration, Vol. 34, pp. 1-11, DOI: https://doi.org/10.1016/j.jii.2023.100482, 2023. </unstructured_citation></citation><citation key="ref16"><doi>10.1016/j.procs.2022.01.205</doi><unstructured_citation>S.S.V.K. Kolla, D.M. Lourenço, A.A. Kumara, P. Plapper, Retrofitting of legacy machines in the context of Industrial Internet of Things (IIoT), Procedia Computer Science, Vol. 200, pp. 62-70, DOI: https://doi.org/10.1016/j.procs.2022.01.205, 2022. </unstructured_citation></citation><citation key="ref17"><doi>10.3390/app14020905</doi><unstructured_citation>J. Li, P. He, H. Li, S. Li, L. Xu, K. He, ”Multi-objective cutting parameter optimization method for the energy consumption and machining quality of computerized numerical control lathes”, Applied Science, Vol. 14, Issue 905, pp. 1-17, DOI: https://doi.org/10.3390/app14020905, 2024. </unstructured_citation></citation><citation key="ref18"><unstructured_citation>Z. Yan, S. Ren, R. Stevens, C. Pham, J. Łubczonek, ”Prediction of energy consumption of numerical control machine tools and analysis of key energy-saving technologies”, Academic Journal Of Manufacturing Engineering, Vol. 18, Issue 1, pp. 144-150, DOI: https://doi.org/10.1049/cim2.12001, 2020. </unstructured_citation></citation><citation key="ref19"><doi>10.3390/su16020847</doi><unstructured_citation>H. Wu, X. Wang, X. Deng, H. Shen, X. Yao, ”Review on design research in CNC machine tools based on energy consumption”, Sustainability, Vol. 16, Issue 2, pp. 1-19, DOI: https://doi.org/10.3390/su16020847, 2024. </unstructured_citation></citation><citation key="ref20"><doi>10.1080/21681015.2023.2216701</doi><unstructured_citation>M. Ghobakhloo, M. Iranmanesh, M.L. Tseng, A. Grybauskas, A. Stefanini, A. Amran, ”Behind the definition of Industry 5.0: a systematic review of technologies, principles, components, and values”, Journal of Industrial and Production Engineering, Vol. 40, Issue 6, pp. 432-447, DOI: https://doi.org/10.1080/21681015.2023.2216701, 2023. </unstructured_citation></citation><citation key="ref21"><doi>10.1016/j.promfg.2019.02.180</doi><unstructured_citation>S.C. Albu, ”Simulation of processing of a helical surface with the aid of a frontal-cylindrical milling tool”, Procedia Manufacturing, Vol. 32, pp. 36-41, DOI: https://doi.org/10.1016/j.promfg.2019.02.180, 2019. </unstructured_citation></citation><citation key="ref22"><doi>10.1051/matecconf/20179407004</doi><unstructured_citation>R. Gołebski, ”Parametric programming of CNC machine tools”, MATEC Web of Conferences, Vol. 94, DOI: 10.1051/matecconf/20179407004, 2017. </unstructured_citation></citation><citation key="ref23"><doi>10.1016/b978-0-12-812894-7.00006-2</doi><unstructured_citation>B. Bhattacharyya, B. Doloi, ”Modern machining technology-advanced, hybrid, micro machining and super finishing technology”, Academic Press: San Diego, CA, USA, ISBN 9780128128947, pp. 461-591, 2020. </unstructured_citation></citation><citation key="ref24"><unstructured_citation>EMCO machines - EMCO, https://www.emcoworld.com/en/. Accessed date: 05.01.2024. </unstructured_citation></citation><citation key="ref25"><doi>10.54097/hset.v37i.6079</doi><unstructured_citation>R. Wu, ”Recent advances of flow rate simulation in gear pumps”, Highlights in Science, Engineering and Technology, vol. 37, pp. 238-251, DOI: https://doi.org/10.54097/hset.v37i.6079, 2022. </unstructured_citation></citation><citation key="ref26"><unstructured_citation>Pompe multiple (Multiple pumps) - Hidarom, https://hidarom.ro/transfer/. Accessed date: 04.01.2024. </unstructured_citation></citation><citation key="ref27"><doi>10.3390/coatings12091354</doi><unstructured_citation>A. Knap, Š. Dvořáčková, T. Knápek, ”Study of the machining process of GFRP materials by milling technology with coated tools”, Coatings, Vol. 12, Issue 9, pp. 1-15, DOI: https://doi.org/10.3390/coatings12091354, 2022. </unstructured_citation></citation><citation key="ref28"><doi>10.1016/j.polymertesting.2021.107450</doi><unstructured_citation>K. Nar, C. Majewski, R. Lewis, ”A comprehensive characterisation of Laser Sintered Polyamide-12 surfaces”, Polymer Testing, Vol. 106, pp. 1-13, DOI: https://doi.org/10.1016/j.polymertesting.2021.107450, 2022. </unstructured_citation></citation><citation key="ref29"><doi>10.1155/2017/5408691</doi><unstructured_citation>M. Bozdemir, ”The effects of humidity on cast PA6G during turning and milling machining”, Advances in Materials Science and Engineering, Vol. 2017, pp. 1-9, DOI: https://doi.org/10.1155/2017/5408691, 2017. </unstructured_citation></citation><citation key="ref30"><doi>10.1016/j.matdes.2008.05.003</doi><unstructured_citation>J. P. Davim, L. R. Silva, A. Festas, A. M. Abrão, ”Machinability study on precision turning of PA66 polyamide with and without glass fiber reinforcing”, Materials &amp; Design, Vol. 30, Issue 2, pp. 228-234, DOI: https://doi.org/10.1016/j.matdes.2008.05.003, 2009. </unstructured_citation></citation><citation key="ref31"><doi>10.1088/1757-899x/893/1/012005</doi><unstructured_citation>M. Aruna, ”Optimization of cutting parameters in machining polyoxymethylene using RSM”, IOP Conference Series: Materials Science and Engineering, Vol. 893, DOI: 10.1088/1757-899X/893/1/012005, 2020.</unstructured_citation></citation></citation_list></journal_article></journal></body></doi_batch>