Article
Article name Asymmetry of Structural Extrusion When Forming Smooth-Threaded Connections
Authors Berezin S.Y. Doctor of Engineering, chumakov@mail.ru
Romanova L.S. Candidate of Engineering Science, Associate Professor, Kurlser@yandex.ru
Bibliographic description
Section Scientific Research
UDK 621.88.083.8
DOI
Article type
Annotation The paper considers the issues of internal thread profile formation when screwing studs in smooth holes. The reasons of emergence of considerable asymmetry of the profiles connected with geometry of deforming sites of a beginning spire of the studs formed by a butt facet are determined. A series of modeling experiments established a character of a metal current under deformation and influence of geometry on asymmetry degree of internal thread profiles.
Key words tapping thread, smooth-threaded connections, thread profile, asymmetry, thread studs, deformation beginning spire, stresses, internal thread, microhardness, isoskleres, crater.
Article information
References 1. G¨othling A. Toleranzen und Festigkeit geforment Gewinde //Maschinenbau. 1968. 17. № 4. P. 171–174. 2. Inger Kh. Posadka rezbovykh shpilek v tsilindricheskiye otverstiya detaley s samonakatyvaniyem rezby // Tekhnologiya i oborudovaniye mekhanosborochnogo proizvodstva: Ekspres-informatsiya. M.: VINITI, 1975. № 26. S. 35–28. 3. Krasilnikov N. I., Iosilevich G. B., Gepshteyn V. S., Butkin N. S. Posadka shpilek v alyuminiyevye kartery dvigateley putem samonakatyvaniya rezby. // Avtomobilnaya promyshlennost. 1971. № 4. S. 36–37. 4. Molokhov I. F., Okoneshnikov V. A. Vvertyvaniye shpilek v gladkiye tsilindricheskiye otverstiya // Vestnik mashinostroyeniya. 1975. № 2. S. 48–50. 5. Danilova L. N. Vliyaniye kinematiki protsessa svinchivaniya na kachestvo gladko- rezbovykh soyedineny. //Prirodnye i intellektualnye resursy Sibiri. ¾Sibresurs 2008¿: Materialy XII Mezhdunar. nauch.-prakt. konf., 2021 noyab. 2008 g. / redkol.: Yu. A. Antonov (otv. redaktor). Kemerovo: GU KuzGTU, 2008. S. 248–251. 6. Yakushev A. I., Mustayev R. Kh., Mavlyutov R. R. Povysheniye prochnosti i nadezhnosti rezbovykh soyedineny. M.: Mashinostroyeniye, 1979. 215 s. 7. Yurinets R. V. Obespecheniye kachestva gladko-rezbovykh so-edineny // Mashinostroyeniye i tekhnosfera XXI veka. Sb. trudov XIII Mezhdunar. nauch.-tekhn.konf. 11–16 sentyabrya 2006 g. v Sevastopole. V 5 t. Donetsk: DonNTU. T. 5. S. 340–343. 8. Semichevsky G. A., Berezin S. Ya. Tekhnologiya sborki gladko-rezbovykh soyedineny: monografiya. Chita: ZabGPU im. N. G. Chernyshevskogo, 1998. 100 s.
Full articleAsymmetry of Structural Extrusion When Forming Smooth-Threaded Connections