Numerical analysis and experimental trial of axial feed skew rolling for forming bars

• Autorzy: Zhang Huibo , Wang Baoyu , Lin Longfei , Feng Pengni , Zhou Jing , Shen Jinxia

Identyfikatory

DOI

10.1007/s43452-021-00334-z

• Języki publikacji: EN

Abstrakty

EN

Axial feed skew rolling (AFSR) is a novel flexible forming process suitable for the production of multi-specification and small-batch bars. This work presents a systematic investigation of AFSR process via numerical analysis and experimental method. The finite-element (FE) simulation was conducted to analyze the distributions of strain and stress, temperature evolution, axial feed motion, rolling force and torque. The results show that the stress state of the workpiece central in the deformation zone is compressive in radial direction and tensile in axial and tangential directions. During the whole process, the workpiece temperature remains in hot-rolling temperature range. The bite stage lasts less than 1 s, and the initial thrust required is about 3.17 kN (rolling from Ø 60 mm to Ø 40 mm). The axial sliding coefficient of workpiece is determined to be 0.63 via comprehensive analysis of simulation results and theoretical calculation. Moreover, based on the single-factor design, the effects of process parameters on axial feed velocity, rolling force, and torque were studied by FE simulation. The axial feed velocity, rolling force, and torque increase with increasing feeding angle and sizing length, but decrease with increasing forming angle. The experiments were performed on a newly designed rolling mill, and experimental results show consistency with FE simulation results. No central defects are observed, while there are surface helical grooves and end concave centers on the rolled piece. The diameter deviation of rolled piece is within ± 0.3 mm. The ultimate tensile strength (UTS) is increased by about 58 MPa.

Słowa kluczowe

EN

axial feed skew rolling; rolling mill; bar rolling; motion analysis; forming quality

PL

walcowanie skośne; walcowanie prętów; formowanie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2022
• Tom: Vol. 22, no. 1
• Strony: art. no. e17, 2022
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., wykr.

Twórcy

autor

Zhang Huibo

• School of Mechanical Engineering, University of Science and Technology Beijing, No.30 Xueyuan Road, Haidian District, Beijing 100083, China

autor

Wang Baoyu

• School of Mechanical Engineering, University of Science and Technology Beijing, No.30 Xueyuan Road, Haidian District, Beijing 100083, China
• Beijing Laboratory of Metallic Materials and Processing for Modern Transportation, Beijing 100083, China

• https://orcid.org/0000-0003-0462-9511

autor

Lin Longfei

• School of Mechanical Engineering, University of Science and Technology Beijing, No.30 Xueyuan Road, Haidian District, Beijing 100083, China

autor

Feng Pengni

• School of Mechanical Engineering, University of Science and Technology Beijing, No.30 Xueyuan Road, Haidian District, Beijing 100083, China

autor

Zhou Jing

• School of Mechanical Engineering, University of Science and Technology Beijing, No.30 Xueyuan Road, Haidian District, Beijing 100083, China

autor

Shen Jinxia

• School of Mechanical Engineering, University of Science and Technology Beijing, No.30 Xueyuan Road, Haidian District, Beijing 100083, 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)