Pub Date : 2023-04-11DOI: 10.30987/2223-4608-2023-3-8
M. Bogomolov, A. Yamnikov, O. Yamnikova
Achievements of cutting materials science in Russia and abroad have been emphasized. Tooling operation specifics using a spherical milling cutter is characterized by slice thick-ness of work material burst layers located in close proximity of the axis and the cutting speed, which tends to zero. A scheme that al-lows calculating the value of the axial cutting force as an integral of the cutter bit angularity relative to the axis of the cutter from the point of origin of the burst layer to its end, is pro-posed. The calculation of the variable part of a certain integral, without taking into account the constant cutting force, was performed using the Mathcad mathematical package. To determine the ratio of the cutting force normal component to the main characteristic, the results of the work, where a special control experiment was carried out to determine the specified components of the cutting force when the burst layer thickness was changed from zero to the beginning of the stable chip separation process, were analyzed. It is found that at the beginning of the chip separation process, the main component of the cutting force rises exponentially (by 2,5 times), and the normal one does not spike.
{"title":"Thrust force incut using spherical head cutter","authors":"M. Bogomolov, A. Yamnikov, O. Yamnikova","doi":"10.30987/2223-4608-2023-3-8","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-3-8","url":null,"abstract":"Achievements of cutting materials science in Russia and abroad have been emphasized. Tooling operation specifics using a spherical milling cutter is characterized by slice thick-ness of work material burst layers located in close proximity of the axis and the cutting speed, which tends to zero. A scheme that al-lows calculating the value of the axial cutting force as an integral of the cutter bit angularity relative to the axis of the cutter from the point of origin of the burst layer to its end, is pro-posed. The calculation of the variable part of a certain integral, without taking into account the constant cutting force, was performed using the Mathcad mathematical package. \u0000To determine the ratio of the cutting force normal component to the main characteristic, the results of the work, where a special control experiment was carried out to determine the specified components of the cutting force when the burst layer thickness was changed from zero to the beginning of the stable chip separation process, were analyzed. It is found that at the beginning of the chip separation process, the main component of the cutting force rises exponentially (by 2,5 times), and the normal one does not spike.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"2012 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88150640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-30DOI: 10.30987/2223-4608-2023-38-48
A. Breki
The analysis, model revisited and the generalization of the existing empirical mathematical model of the force variation law depending upon time in case of spontaneous changes in the state of the friction contact of solids, is completed. Using the adhesion-deformation theory of friction, a phenomeno-logical model of friction force dependence on time and sliding dis-tance, is constructed, taking into account spontaneous changes in the state of frictional contact. The developed model makes it possible to interpret the transition empirical parameters and characteristics from a molecular-mechanical point of view.
{"title":"Empirical kinetic law of force variation in the sliding frictional force during spontaneous changes in the state of friction contact","authors":"A. Breki","doi":"10.30987/2223-4608-2023-38-48","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-38-48","url":null,"abstract":"The analysis, model revisited and the generalization of the existing empirical mathematical model of the force variation law depending upon time in case of spontaneous changes in the state of the friction contact of solids, is completed. Using the adhesion-deformation theory of friction, a phenomeno-logical model of friction force dependence on time and sliding dis-tance, is constructed, taking into account spontaneous changes in the state of frictional contact. The developed model makes it possible to interpret the transition empirical parameters and characteristics from a molecular-mechanical point of view.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85731600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-30DOI: 10.30987/2223-4608-2023-19-22
A. Suslov, Sergey Siyanov
Theoretical dependences for deter-mining the wear intensity, depending on the modes and conditions of EDM process of ma-chine parts based on the energy approach to the processing and triboprocess, are given. These dependences make it possible to determine the optimal modes and conditions of EDM process for ensuring the required parameters of wear resistance (with a single-stage approach – di-rect engineering support).
{"title":"Single-stage engineering support of wear resistance of machine parts by EDM proces","authors":"A. Suslov, Sergey Siyanov","doi":"10.30987/2223-4608-2023-19-22","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-19-22","url":null,"abstract":"Theoretical dependences for deter-mining the wear intensity, depending on the modes and conditions of EDM process of ma-chine parts based on the energy approach to the processing and triboprocess, are given. These dependences make it possible to determine the optimal modes and conditions of EDM process for ensuring the required parameters of wear resistance (with a single-stage approach – di-rect engineering support).","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77940537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-30DOI: 10.30987/2223-4608-2023-12-18
A. Albagachiev, A. Yakovleva
Residual potential theoretical de-pendence upon the modes of combined machin-ing operations and physical and mechani-cal properties of the processed material under the influence of the inheritance factor is presented. Experimental evidence of dependence sufficiency is given.
{"title":"Application of combined action methods for the surface layer of machine parts in science-intensive technologies","authors":"A. Albagachiev, A. Yakovleva","doi":"10.30987/2223-4608-2023-12-18","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-12-18","url":null,"abstract":"Residual potential theoretical de-pendence upon the modes of combined machin-ing operations and physical and mechani-cal properties of the processed material under the influence of the inheritance factor is presented. Experimental evidence of dependence sufficiency is given.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78795262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-30DOI: 10.30987/2223-4608-2023-3-11
A. Chuprikov, A. Yamnikov
Designing techniques in turning op-erations for shell casings processing, is viewed. A structural and func-tional scheme of improve-ment practices for the technological conditions of shell casings mechanical processing and a con-ceptual model of the algorithm that can be implemented, including and specifically through modern digital technologies, are proposed.
{"title":"Design techniques for turning operations in shell casings processing","authors":"A. Chuprikov, A. Yamnikov","doi":"10.30987/2223-4608-2023-3-11","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-3-11","url":null,"abstract":"Designing techniques in turning op-erations for shell casings processing, is viewed. A structural and func-tional scheme of improve-ment practices for the technological conditions of shell casings mechanical processing and a con-ceptual model of the algorithm that can be implemented, including and specifically through modern digital technologies, are proposed.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79527574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-30DOI: 10.30987/2223-4608-2023-23-37
L. Kuksenova, M. Alekseeva, D. Kozlov
The results of structural and tribological studies of steels and alloys of pearlite, martensitic and austenitic classes using dif-ferent types of pretreatment and nitriding modes are presented. The results of tribological tests and metallophysical studies made it possible to evaluate the effectiveness of each of used treatment methods and to identify the characteristics of the structural state of the nitrided layer, contributing to an increase in the operational properties of steels in friction and wear conditions. A comprehensive physical and mechanical criterion has been developed to evaluate friction components nitrid-ing efficiency.
{"title":"Dependence of indicators of nitrited steels operational properties on the surface layer structural condition","authors":"L. Kuksenova, M. Alekseeva, D. Kozlov","doi":"10.30987/2223-4608-2023-23-37","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-23-37","url":null,"abstract":"The results of structural and tribological studies of steels and alloys of pearlite, martensitic and austenitic classes using dif-ferent types of pretreatment and nitriding modes are presented. The results of tribological tests and metallophysical studies made it possible to evaluate the effectiveness of each of used treatment methods and to identify the characteristics of the structural state of the nitrided layer, contributing to an increase in the operational properties of steels in friction and wear conditions. A comprehensive physical and mechanical criterion has been developed to evaluate friction components nitrid-ing efficiency.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91119092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-30DOI: 10.30987/2223-4608-2023-3-7
B. Bazrov
The major aspect of determining demands of jigs, fixtures and tools (JFT) at the stage of adoption of the production program is of the current importance. It is suggested to use a module technology principle for solving this problem, since in practice JFT determining demands are based on the results of manufacturing process design.
{"title":"Determining demands of parts production techniques","authors":"B. Bazrov","doi":"10.30987/2223-4608-2023-3-7","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-3-7","url":null,"abstract":"The major aspect of determining demands of jigs, fixtures and tools (JFT) at the stage of adoption of the production program is of the current importance. It is suggested to use a module technology principle for solving this problem, since in practice JFT determining demands are based on the results of manufacturing process design.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84805747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-17DOI: 10.30987/2223-4608-2023-30-36
The issues of laser doping of aluminum alloy surfaces using laser doping technique (LDT) are viewed. Within the framework of studies surface currents and velocity fields using laser doping are modeled. The structure of the zones subjected to LDT has been analyzed, and antifriction properties of the obtained heterophase structures have been investigated.
{"title":"Formation of a heterophase structure of laser doping zones in aluminum alloys for the improvement of antifriction properties of the surface","authors":"","doi":"10.30987/2223-4608-2023-30-36","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-30-36","url":null,"abstract":"The issues of laser doping of aluminum alloy surfaces using laser doping technique (LDT) are viewed. Within the framework of studies surface currents and velocity fields using laser doping are modeled. The structure of the zones subjected to LDT has been analyzed, and antifriction properties of the obtained heterophase structures have been investigated.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72983579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-06DOI: 10.30987/2223-4608-2023-24-29
A. Albagachiev
The results of numerical calculation of the continuum mechanics equation for continuous medium plastic flow and analytical models studying thermophysics at friction stir welding are given.
给出了连续介质塑性流动连续介质力学方程的数值计算结果和搅拌摩擦焊接热物理分析模型。
{"title":"Physico-mechanical modeling of friction stir welding","authors":"A. Albagachiev","doi":"10.30987/2223-4608-2023-24-29","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-24-29","url":null,"abstract":"The results of numerical calculation of the continuum mechanics equation for continuous medium plastic flow and analytical models studying thermophysics at friction stir welding are given.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72794447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-02DOI: 10.30987/2223-4608-2023-11-23
V. Ovchinnikov, T. Akopyan, E. Protsenko, Denis Polyakov
The results of a study of the welding properties of new aluminum alloys Al–1,0Ca–5,5Zn–1,5Mg–0,5Mn and Al–2,0Ca–2,5Mg–0,4Mn are presented. The mechanical properties of the studied alloys in argon arc and laser welding are determined. The power of Al-1,0Ca–5,5Zn–1,5Mg–0,5Mn and Al–2,0Ca–2,5Mg–0,4Mn alloys to the formation of pores in the seam in fusion welding is viewed.
{"title":"Welding properties indicators in fusion welding of prospective aluminum alloys based on the Al–Ca–Zn–Mg system","authors":"V. Ovchinnikov, T. Akopyan, E. Protsenko, Denis Polyakov","doi":"10.30987/2223-4608-2023-11-23","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-11-23","url":null,"abstract":"The results of a study of the welding properties of new aluminum alloys Al–1,0Ca–5,5Zn–1,5Mg–0,5Mn and Al–2,0Ca–2,5Mg–0,4Mn are presented. The mechanical properties of the studied alloys in argon arc and laser welding are determined. The power of Al-1,0Ca–5,5Zn–1,5Mg–0,5Mn and Al–2,0Ca–2,5Mg–0,4Mn alloys to the formation of pores in the seam in fusion welding is viewed.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82135754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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