Affiliation:
1. Bryansk State Technical University
Abstract
Design and technological concepts are viewed at the stages of designing, manufacturing and joining process providing for the required reliability (durability) of mold elements. Recommendations are given for rationing and achieving the parameters of accuracy and quality of mating surfaces, taking into account the formation of the necessary operational properties at the main stages of the product life cycle. The factors that have the greatest impact on ensuring the correct and accurate location of forming tool elements have been elicited. The concept of determining the actual contact area and calculating the scale parameter, which provides a contact interface degree specification for conjugated surfaces, is presented. The hypothesis of the formation of reliability indicators is found, taking into account the manufacturing capability and technical capacity of production with the introduction of correction of the upper and lower dimensional deviations included in the dimension chains and ensuring the pre-set accuracy parameters of the master link.
The analysis of the operating conditions of the studied type of pressmold elements is carried out. The main operational properties that provide the required operating time for shaping part failures are identified and analyzed. Special attention is paid to the study of the structural features of such parts, a comparison of the integral and prefabricated structures is made, and also, contact stresses under the joining operation for the most promising of the latter are calculated for contact interface degree simulation. This will allow developing practical recommendations for any type of compound forming tool for the benefit of basic mechanical properties rate making, accuracy indicators, including deviation allowances in the correct geometric shape, including quality parameters of the surface layer at the designing stage,processing methods dispatch and modes setting at the manufacturing and testing stages and also suggesting the amount of static loading when assembling.
Publisher
Bryansk State Technical University BSTU
Reference10 articles.
1. Федоров В.П., Нагоркин М.Н., Вайнер Л.Г. Методологические основы диагностики технологических систем металлообработки по параметрической надежности обеспечения заданного качества обрабатываемых поверхностей // Вестник Брянского государственного технического университета.2021. № 11(108). С. 49–63. DOI 10.30987/1999-8775-2021-11-36-50. EDN KCWBUK., Fedorov V.P., Nagorkin M.N., Weiner L.G. Methodological foundations of diagnostics of metalworking technological systems according to parametric reliability of ensuring a given quality of treated surfaces // Bulletin of the Bryansk State Technical University, 2021, no. 11(108). pp. 49-63. DOI 10.30987/1999-8775-2021-11-36-50. EDN KTSUBUK.
2. Польский Е.А., Никонов О.А., Митраков Н.С., Звягинцев Ф.Д. Технологическое обеспечение точности наукоемких сборочных узлов на этапах жизненного цикла // Известия Тульского государственного университета. Технические науки. 2017. № 8-2. С. 328–335. EDN ZHTRKV., Polsky E.A., Nikonov O.A., Mitrakov N.S., Zvyagintsev F.D. Technological provision of accuracy of scientific assembly at stages of life cycle // News of TulgU. Technical science. 2017, no. 8. pp. 328–338. UVD YARIKOM.
3. Polsky E.А., Sorokin S.V., Shemenkov V.М. Technological support of joint reliability indicators taking into account complex formation of surface quality metrics and physical and mechanical properties of functional surface materials // Journal of Physics: Conference Series, Divnomorskoe, 31 мая 06 2021 года. Divnomorskoe, 2021. P. 052024. DOI 10.1088/1742-6596/2131/5/052024. EDN DBQWMA., Polsky E.A., Sorokin S.V., Shemenkov V.M. Technological support of joint reliability indicators taking into account complex formation of surface quality metrics and physical and mechanical properties of functional surface materials // Journal of Physics: Conference Series, Divnomorskoe, 31st, May, 06, 2021 year. Divnomorskoe, 2021. P. 052024. DOI 10.1088/1742-6596/2131/5/052024. EDN DBQWMA.
4. Федуков А.Г., Хандожко А.В., Польский Е.А., Щербаков А.Н. Обеспечение точности станочных узлов на базе унифицированных модулей с учетом контактной жесткости стыков // Вестник Брянского государственного технического университета. 2019. № 3 (76). С. 51–59. DOI 10.30987/article_5c3db11190a975.91435272. EDN VXQNEC., Fedukov A.G., Khandozhko A.V., Polsky E.A., Shcherbakov A.N. Ensuring the accuracy of machine-tool assemblies based on unified assemblies based on the contact stiffness of the joints // BSTU Bulletin. Mechanical Engineering, 2019, no. 3, pp. 51–59. DOI 10.30987/article_5c3db11190a975.91435272. EDNVXQNEC.
5. Суслов А.Г., Федоров В.П., Горленко О.А. и др. Фундаментальные основы технологического обеспечения и повышения надежности изделий машиностроения М.: Издательство «Инновационное машиностроение», 2022. 552 с. ISBN 978-5-907523-04-3. EDN DCEFZK., Suslov A.G., Fedorov V.P., Gorlenko O.A. and others. Fundamentals of technological support and reliability improvement of mechanical engineering articles. Moscow: Publishing House «Innovatsionnoe mashinostroenie», 2022, 552 p. ISBN 978-5-907523-04-3. EDN DCEFZK.