Technological Supportof Parts’ Fatigue Life by Modeling Their Turning Process
Background. The issue of technological support of the required part’s material fatigue life by creating a mathematical model of the finishing turning process is considered. This model includes, as a target function, the maximum process productivity and the set of feed constraints and cutting speeds, permissible force and cutting power, machining precision, tool stability, surface roughness, part fatigue life, and cutting condition optimization.
Objective. The aim of the paper is to provide technological support for the required part fatigue life by determining the rational cutting conditions, taking into account the properties of the processed material, and to develop appropriate methodological recommendations.
Methods. The objective of the research is achieved by creating a mathematical model of the finishing turning process, determining the coefficients of the generalized materials’ characteristics of the classification group taking into account the properties of the processed material, further model optimization by the method of sliding admission and the definition of rational cutting conditions.
Results. The mathematical model of the finishing turning process, which takes into account the characteristics of the processed material and the properties of the technological processable system, was created. Relative coefficients of the materials’ generalized characteristics of the structural alloyed chromium steels group are calculated. A multivariate optimization method of the developed mathematical model is proposed.Conclusions. The proposed methodological recommendation of technological support of a part’s material fatigue life based on a mathematical model of the finishing turning process, which includes the maximum process productivity and set of restrictions as the target function, which allows determining the rational cutting condition by the chosen method of nonlinear optimization.
Full Text:PDF (Українська)
I.A. Birger et al., Machine Part Strength Calculation. Moscow, Russia: Mashinostroenie, 1993.
N.A. Mahutov, Deformation Criteria for Destruction and Strength Calculation of Design Elements. Moscow, Russia: Mashinostroenie, 1981.
V.F. Bezyazychnyj et al., Calculation of Cutting Conditions. Textbook. Rybinsk, Russia: RGATA, 2009.
Yu.V. Petrakov and A.K. Amin, “Optimization Module of stepped shafts sharpening process on CNC machines”, Progressivnye Tehnologii i Sistemy Mashinostroenija, no. 2, pp. 154–161, 2008.
Guide for Technologist-Mechanician, vol. 2, A.M. Dalskij et al., eds. Moscow, Russia: Mashinostroenie, 2003.
Guide for the Technologist. Processing of Metals by Cutting, A.A. Panov, Ed. Moscow, Russia: Mashinostroenie, 1988.
General Machine-Building Standards for Cutting Condition Duration for Normalizing Work Performed on Universal and Multipurpose Machines with Numerical Program Control, part 2, Cutting Condition Standards. Moscow, Russia: Ehkonomika, 1990.
A.D. Loktev et al., General Machine-Building Standards for the Cutting Condition Duration. Moscow, Russia: Mashinostroenie, 1991.
A.B. Romanov et al., Tables and Albums for Adjustments and Allowances. St. Petersburg, Russia: Politehnika, 2005.
Guide for Technologist-Mechanician, vol. 1, A.M. Dalskij et al., eds. Moscow, Russia: Mashinostroenie, 2003.
V.I. Baranchikov et al., Progressive Cutting Tools and Metal Cutting Conditions. Moscow, Russia: Mashinostroenie, 1990.
A.G. Suslov, Quality of the Surface Layer of Machine Parts. Moscow, Russia: Mashinostroenie, 2000.
V.F. Bezyazychnyj, “Calculation of the machined surface roughness height during turning”, Obrabotka Vysokoprochnyh Stalej i Splavov Instrumentami iz Sverhtverdyh Sinteticheskih Materialov, no. 1, p. 162, 1978.
C. Barandych et al., “Lathe turning mode optimisation for parts working under conditions of cyclic loading”, Ukr. J. Mech. Eng. Mater. Sci., vol. 2, no. 2, pp. 53–60, 2016.
K.S. Barandych et al., “The choice of rational conditions for the processing of structural materials”, Protsesy Mekhanichnoi Obrobky v Mashynobuduvanni, no. 10, pp. 64–72, 2011.
K.S. Barandych and S.P. Vysloukh, “Method of fatigue life determination of parts’ material, working under variable loads”, Visnyk Zhytomyrskoho Derzhavnoho Tekhnolohichnoho Universytetu. Ser. Tekhnichni Nauky, no. 4, pp. 30–37, 2015.
G.Ju. Jakobs et al., Optimization of Cutting Conditions. Parameterization of Cutting Methods Using Technological Optimization. Moscow, Russia: Mashinostroenie, 1981.
V.S. Antonyuk et al., “Optimization of technological parameters of the hardening coatings’ formation process”, Tehnologicheskie Sistemy, no. 4, pp. 44–48, 2003.
С.S. Barandych and S.P. Vysloukh, “Generating finite-element model of the shaft and solution of boundary value problem of stress-strain state”, Zbirnyk Naukovykh Prats Poltavskoho Natsionalnoho Tekhnichnoho Universytetu im. Yu. Kondratiuka. Ser. Haluzeve Mashynobuduvannia, Budivnytstvo, no. 2, pp. 228–232, 2014.
GOST Style Citations
- There are currently no refbacks.
Copyright (c) 2018 Igor Sikorsky Kyiv Polytechnic Institute
This work is licensed under a Creative Commons Attribution 4.0 International License.