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High-speed reducing and sizing units in small-section and wire mills. Part 1. (Continuation) 小截面和线材轧机的高速缩径和上浆装置。第1部分。(延续)
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-8-365-372
S.B. Aryulin, A.К. Buvaeva, A.A. Nemzorov
{"title":"High-speed reducing and sizing units in small-section and wire mills. Part 1. (Continuation)","authors":"S.B. Aryulin, A.К. Buvaeva, A.A. Nemzorov","doi":"10.36652/1684-1107-2023-21-8-365-372","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-8-365-372","url":null,"abstract":"The main trends in the development of technology for the production of wire rod in world practice are outlined. Information is provided on the developments by equipment manufacturers to change the layout and composition of the equipment of the tail section of modern high-speed mills in order to obtain the ability to control the properties of wire rod of a wide grade and size range. Information is presented on the use and location of reducing and sizing units in the tail section during the construction of new mills for the production of wire rod and the modernization of existing mills at domestic metallurgical plants.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135312684","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}
引用次数: 0
Comparative analysis of as-delivered heat-resistant bearing steels 交货耐热轴承钢的对比分析
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-426-430
T.M. Pugacheva
{"title":"Comparative analysis of as-delivered heat-resistant bearing steels","authors":"T.M. Pugacheva","doi":"10.36652/1684-1107-2023-21-9-426-430","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-426-430","url":null,"abstract":"A comparative analysis of the regulatory document requirements and the actual metallurgical quality characteristic values of domestic (8Kh4V9F2-Sh, 8Kh5M3VFB-ID) and foreign (M50 VIM-VAR) as-delivered heat-resistant bearing steels is carried out. The chemical composition, non-metallic inclusions, carbide heterogeneity, carbide morphology and hardness of hot-rolled bars of different diameters are studied. Additionally, the heat resistance is determined. It is established that the best quality (narrow component ranges, less non-metallic inclusions contamination, carbide heterogeneity and hardness) has M50 VIM-VAR steel, the worst quality is 8Kh4V9F2-Sh steel, which meets the most stringent requirements of regulatory documentation for M50 VIM-VAR steel. In bars with a diameter of up to 22 mm, the quality of all steels according to the studied characteristics does not noticeably differ. 8Kh5M3VFB-ID steel has the widest range of carbon and chromium content, the highest hardness, aluminum nitrides and eutectic carbides of the \"honeycomb\" type are observed. 8Kh4V9F2-Sh steel has the most heat-resistant, which allows its use at higher operating temperatures. The obtained data can be used when choosing a steel grade for bearings of a specific range.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136003731","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}
引用次数: 0
Performance evaluating of FDM printing tools for sheet metal drawing 钣金拉伸用FDM打印工具的性能评价
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-396-406
M.A. Serezhkin, M.F. Grossman
{"title":"Performance evaluating of FDM printing tools for sheet metal drawing","authors":"M.A. Serezhkin, M.F. Grossman","doi":"10.36652/1684-1107-2023-21-9-396-406","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-396-406","url":null,"abstract":"The choice of FDM printing parameters for the production of FDM tools for drawing of cylindrical parts from sheet blanks is studied. The structure of products obtained by FDM printing is considered, the force interaction of FDM tool and billet during drawing is analyzed, the criteria of workability of FDM tool during drawing are determined, the effect of FDM printing parameters on the strength of the manufactured products is evaluated.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135958499","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}
引用次数: 0
Effect of metal supply during forging on loading of drive elements of lever radial forging machine 锻造过程中金属供给对杠杆径向锻床驱动元件载荷的影响
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-407-411
I.I. Nekrasov, V.S. Parshin
{"title":"Effect of metal supply during forging on loading of drive elements of lever radial forging machine","authors":"I.I. Nekrasov, V.S. Parshin","doi":"10.36652/1684-1107-2023-21-9-407-411","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-407-411","url":null,"abstract":"In order to find the values of the loads acting on the drive elements of the radial forging machine (RFM), the problem for determining of the forging force of bars with different feeds using the method of joint solution of approximate equations of equilibrium and plasticity of metal in the deformation zone is considered. A system of differential equations describing the dynamics of the drive of the lever RFM is compiled, and the solution is implemented. The results obtained allow us to determine the parameters of lever RFM for performing of specific tasks of plastic metal working.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135959327","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}
引用次数: 0
Design development of software and hardware complex for electric arc layer-by-layer surfacing 电弧逐层堆焊软硬件综合体的设计开发
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-391-395
M.A. Kuznetsov, A.V. Proskokov, O.A. Podgornykh
{"title":"Design development of software and hardware complex for electric arc layer-by-layer surfacing","authors":"M.A. Kuznetsov, A.V. Proskokov, O.A. Podgornykh","doi":"10.36652/1684-1107-2023-21-9-391-395","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-391-395","url":null,"abstract":"The results of modeling and design of the structure of the delta-layout software and hardware complex and the results of experimental studies of surfacing of metal products on the developed complex are presented. The surfacing technology is based on automatic electric arc welding with a melting electrode in an environment of protective gases. It is determined that with electric arc layer-by-layer surfacing, the walls of products have a gradient structure. Only the last fused layer has a dendritic structure. The underlying layers are subjected to secondary heat treatment due to the heat generation of the upper layers. The decrease in microhardness from zone 1 to zone 4 is due to a decrease in the ratio of the perlite component in the structure and an increase in the ferritic component. The increase in the percentage of manganese and silicon relative to the base metal is due to the fact that in zones 1—3 there is a transition of these elements from the surfacing material, and their decrease in zone 4 is due to burnout. The decrease in the percentage of carbon is due to the fact that in zone 1 there is a mixing of the surfacing material with the main one, in zones 2 and 3 the burnout of this element occurs, and in zone 4 there is a slight increase, because there is no burnout process.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135957857","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}
引用次数: 0
Design features of feeding systems for topologically optimized castings 拓扑优化铸件喂料系统的设计特点
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-387-390
D.E. Khilkov, D.S. Vdovin, A.Yu. Korotchenko, M.V. Tverskoy, V.A. Funtikov
{"title":"Design features of feeding systems for topologically optimized castings","authors":"D.E. Khilkov, D.S. Vdovin, A.Yu. Korotchenko, M.V. Tverskoy, V.A. Funtikov","doi":"10.36652/1684-1107-2023-21-9-387-390","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-387-390","url":null,"abstract":"The main differences between castings, the configuration of which is obtained by the topological optimization method, from castings, the configuration of which is formed by traditional methods are considered. It is shown that the recommended ways for calculating of the parameters of feeding systems for this class of castings can lead to defects in castings. The application of the porosity formation criterion with a high probability ensures the production of defect-free castings of complex configuration.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135958491","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}
引用次数: 0
Features of design cold pilger mill tools for zirconium alloy tubes production 锆合金管冷镦铣刀的设计特点
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-412-415
Yu.S. Karpov, L.A. Shevelev, E.V. Lagoshina, M.O. Kryuchkova, M.S. Kargopolov
{"title":"Features of design cold pilger mill tools for zirconium alloy tubes production","authors":"Yu.S. Karpov, L.A. Shevelev, E.V. Lagoshina, M.O. Kryuchkova, M.S. Kargopolov","doi":"10.36652/1684-1107-2023-21-9-412-415","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-412-415","url":null,"abstract":"Method of design rolling tools’ grooves for manufacturing of zirconium alloy tubes is considered. The proposed methodology allows to clarify range different parameters calculated in design rolling tools. The described method will ensure compliance with current technical specifications and reduce the likelihood of defects during cold pilgering. The calculation algorithm for determination design parameters is implemented on the example of the intermediate rolling operation ∅65,0×11,9 mm ∅ → ∅32,2×5,3 mm.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135958511","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}
引用次数: 0
Features for obtaining of RuAl-based powder alloys 铝基粉末合金的制备特点
Заготовительные производства в машиностроении Pub Date : 2023-01-01 DOI: 10.36652/1684-1107-2023-21-9-416-425
K.B. Povarova, A.A. Drozdov, A.E. Morozov, A.V. Antonova, M.A. Bulakhtina
{"title":"Features for obtaining of RuAl-based powder alloys","authors":"K.B. Povarova, A.A. Drozdov, A.E. Morozov, A.V. Antonova, M.A. Bulakhtina","doi":"10.36652/1684-1107-2023-21-9-416-425","DOIUrl":"https://doi.org/10.36652/1684-1107-2023-21-9-416-425","url":null,"abstract":"Refractory heat-resistant ruthenium monoaluminide β-RuAl is a promising material for operation in high-velocity gas oxidizing flows at temperatures above work temperatures and melt temperatures of nickel superalloys and refractory nickel and titanium aluminides. The possibilities of preparing high-quality powder materials from RuAl for the manufacture of compact samples are considered. Compact materials with minimum porosity and practically equilibrium phase composition can be obtained under conditions of high-temperature reaction alloying during three-stage hot isostatic pressing with intermediate homogenizing annealing. Preliminary treatment of mixtures of Ru and Al powders in an attritor for 15 h reduces the exothermic effect of RuAl formation and lowers the temperature at which the contact interaction begins.","PeriodicalId":495705,"journal":{"name":"Заготовительные производства в машиностроении","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135958112","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}
引用次数: 0
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