Abstract
The scientific work represents a research of the cutting process in order to determine the influence of the cutting tool extensions length from the tool holder and the cutting forces that occur during processing and corresponding to different values of the removed layer on the formation of the quality of the surface layer of parts during turning. As a cutting tool, the research used a PCLNR2525M12 straight-turning tool with replaceable T15K6 carbide inserts. Steel cylindrical workpieces with a diameter D = 40 mm (steel grade - 30) were used as workpieces. Cutting was carried out at three different cutting depths: 0.4, 1, 1.5 mm. The feed rate and spindle speed throughout the experiment were constant and were equal to s = 0.1 mm/rev, n = 1000 rpm, respectively. The geometric deviations of the cutter from the theoretical cutting line were determined by mathematical modeling methods. Linear displacements formed due to the stress-strain state of the cutter were used as estimated parameters. The study presents the methodology for preparing and conducting mathematical modeling using the three-dimensional modeling system KOMPAS-3D and APM FEM module. The roughness parameters that occur during turning by cutters with different tool extension with different cutting modes were studied experimentally.
Highlights
Graphs of roughness parameters Ra and Rz depending on tool overhang and depth of cut: a – for parameter Ra; б – for parameter Rz]
Monitoring of the stress-strain state of the surface layer of a part in the cutting process using vibroacoustic diagnostics
Summary
В работе исследовано влияние глубины резания и вылета резца на шероховатость поверхности. В качестве режущего инструмента использовался токарный проходной резец PCLNR2525M12 со сменными пластинами из твердого сплава Т15К6 Резном станке модели 16К20 при трех различных глубинах резания t1 = 0,4 мм, t2 = 1 мм и t3 = 1,5 мм. Сила резания Pz определялась по формуле [11]. N 10Сp tx sy Vфn Kp. По полученным значениям тангенциальной силы и соответствующим им режимам резания (глубине и скорости резания, а также величине подачи) определялась мощность резания В качестве обрабатываемых заготовок применялись стальные цилиндрические заготовки диаметром D = 40 мм (марка стали – 30). Зависимость тангенциальной силы и мощности от глубины резания [Table 1.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
