Forming of rail car axles in a CNC skew rolling mill

• Autorzy: Pater Zbigniew , Tomczak Janusz , Lis Konrad , Shu Xuedao

Identyfikatory

DOI

10.1007/s43452-020-00075-5

• Języki publikacji: EN

Abstrakty

EN

This study relates to an innovative method for forming rail car axles by skew rolling in a CNC 3-roll mill. The rolling mill was constructed at the Lublin University of Technology. The use of this machine makes it possible to produce elongated axisymmetric parts that are up to 55 mm in diameter and up to 1000 mm in length. Experimental rolling tests are performed (in 1:5 scale) using this machine. Two types of axles are analysed: one manufactured in accordance with North American standards (AAR Class E) and one manufactured in compliance with European standards (BA302). Diameters of produced axles have a dimensional accuracy of ± 0.4 mm. Produced axles are free from internal cracks, and their surface defects (shallow helical grooves) can easily be removed by machining. The major shortcoming of the proposed method is the presence of chucking allowance. To eliminate this allowance, it is proposed that the forming process should be performed in two operations: rolling extrusion and skew rolling. Results of a numerical analysis were performed using the Simufact.Forming program confirms that rail car axles can be formed by the proposed method.

Słowa kluczowe

EN

skew rolling; rail car axle; CNC rolling mill; experiment; FEM

PL

walcowanie skośne; walcarka; wagon

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2020
• Tom: Vol. 20, no. 3
• Strony: 78--90
• Opis fizyczny: Bibliogr. 35 poz., fot., rys., wykr.

Twórcy

autor

Pater Zbigniew

• Lublin University of Technology, 36 Nadbystrzycka Str, 20‑618 Lublin, Poland

autor

Tomczak Janusz

• Lublin University of Technology, 36 Nadbystrzycka Str, 20‑618 Lublin, Poland

autor

Lis Konrad

• Lublin University of Technology, 36 Nadbystrzycka Str, 20‑618 Lublin, Poland

autor

Shu Xuedao

• Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, People’s Republic of China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)