Wszystkie pola: Bulzak, Tomasz - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical analysis of three-stage the forming process hollow forgings with an outer flange
Autorzy:: Wójcik, Łukasz
Bulzak, Tomasz
Winiarski, Grzegorz
Szala, Mirosław
Powiązania:: https://bibliotekanauki.pl/articles/135267.pdf
Data publikacji:: 2020
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: forging
extrusion
radial forging
hollow part
stepped shaft
flanging
Opis:: This article presents the results of computer simulations used to investigate the forming of a hollow coldworked forging with an outer flange. Numerical simulations were performed in Deform 2D/3D using a calculation module for axial-symmetric cases. A ϕ57×12.5 mm tube-shaped billet from 42CrMo4 grade steel was used. The forming process involved two and three stages, consisting of extrusion the shaft portion and forging the flange. The objective of this research was to determine the accuracy of the forming process used to produce the hollow part. This technology was analyzed using the effective strain distributions, the Cockcroft-Latham fracture criterion values, and the forming force progression. The results showed that it was possible to use this three-stage process to forge elements from a tube-shaped billet.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 62 (134); 142-147
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Numerical Analysis of a Six Stage Forging Process for Producing Hollow Flanged Parts from Tubular Blanks
Autorzy:: Winiarski, Grzegorz
Bulzak, Tomasz Adam
Wójcik, Łukasz
Szala, Mirosław
Powiązania:: https://bibliotekanauki.pl/articles/101985.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: flanging
extrusion
hollow parts
stepped shaft
kołnierzowanie
wytłaczanie
części drążone
wał stopniowany
Opis:: This paper presents the results of a numerical analysis of a cold forging process for a hollow flanged part. The analysis was performed using Deform 2D/3D. 42CrMo4 steel tubes were used as the billet material, and their material model in the annealed state was described by a constitutive equation. The forming process was performed in six stages with the use of methods such as extrusion with a movable sleeve, open-die extrusion, and upsetting. The objective of the study was to determine whether the proposed forging technique could be used to produce hollow parts with flanges. The determination was made based on the analysis of product geometry quality and process parameters, including the Cockcroft-Latham ductile fracture criterion and forming forces.
Źródło:: Advances in Science and Technology. Research Journal; 2020, 14, 1; 201-208
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

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