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Integral structural parts of titanium alloy have high material removal rate, high machining difficulty and need multi-step machining to form the final geometry. The crystallographic texture of machined surface layer will affect the surface quality and the mechanical performance of machined parts from the microstructural aspect. Therefore, high requirements for finish machining surface quality and a reasonable high-quality machining surface-oriented process adjustment method need to be explored. In this paper, the surface quality controlling methods of titanium alloy machining are theoretically analyzed, two machining process adjustment methods in terms of multi-step cutting and prestressed cutting are proposed, and the finite element simulation of multi-step cutting and prestressed cutting was carried out. According to the principle of crystallographic texture and the obtained shear strain and strain rate data by finite element simulation, the crystallographic texture of surface layer materials processed by single-step cutting, single-step prestressed cutting, multi-step cutting and prestressed multi-step cutting were simulated by viscoplastic self-consistent (VPSC) texture simulation program. The influence of cutting process adjustment method on the texture polar figures (texture type and texture density) and crystallographic orientation distribution function (ODF) diagram of machined surface was analyzed. Moreover, the experimental comparisons and validations of simulated results were conducted by orthogonal cutting tests and microstructural texture measurements by using electron backscatter diffraction (EBSD) technique.
Czasopismo
Rocznik
Tom
Strony
art. no. e19, 2023
Opis fizyczny
Bibliogr. 41 poz., rys., tab., wykr.
Twórcy
autor
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, People’s Republic of China
- National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), Jinan 250061, People’s Republic of China
autor
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, People’s Republic of China
- National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), Jinan 250061, People’s Republic of China
autor
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, People’s Republic of China
- National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), Jinan 250061, People’s Republic of China
autor
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, People’s Republic of China
- National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), Jinan 250061, People’s Republic of China
Bibliografia
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Uwagi
PL
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f65a7329-00ca-42b8-be7c-8ae79f414a2a