Pipe cutting technology plays an important role in the process of offshore platforms decommissioning, as many devices such as tubing, drill pipe, and casing need to be decommissioned. In this study, a novel cutting pipe technology based on electro-discharge machining (EDM) is proposed, and a cutting pipe mechanism is developed to cut the pipes for decommissioning offshore platforms. The machining principles and characteristics of the technique are described. The effects of machining parameters, including tool polarity, dielectric fluid, electrode material and width, pulse on-time, pulse off-time, peak voltage, and electrode rotation speed to machining performance, are investigated. The material removal rate (MRR) of the machined casing and tool electrode wear ratio (EWR) is obtained based on the calculation of the percentage of mass loss per machining time. The experimental results show that a better cutting performance can be obtained with negative tool polarity at the conditions of dielectric fluid of emulsion, pulse on-time of 500 µs, pulse off-time of 200 µs, peak voltage of 70 V, copper electrode width of 28 mm, and electrode rotation speed of 250 rpm is a better choice. Additionally, the cutting slots surface has been investigated by the means of scanning electrode microscopy (SEM). The cutting slots machined by the rotary EDM are clean and smooth.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Characteristic investigation of pipe cutting technology based on electro-discharge machining


    Weitere Titelangaben:

    Untersuchung der Eigenschaften einer Rohrschneidtechnologie auf der Basis der elektroerosiven Bearbeitung


    Beteiligte:
    Tian, Xiaojie (Autor:in) / Liu, Yonghong (Autor:in) / Cai, Baoping (Autor:in) / Lin, Rongju (Autor:in) / Liu, Zengkai (Autor:in) / Zhang, Rui (Autor:in)


    Erscheinungsdatum :

    2013


    Format / Umfang :

    11 Seiten, 14 Bilder, 1 Tabelle, 21 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Vibration of wires used in electro-discharge machining

    Shahruz, S.M. | Online Contents | 2003


    Method for wire electro-discharge machining a part

    BEN SALAH NIHAD / BOUTHILLIER ALAIN / FREDERICK MICHEL et al. | Europäisches Patentamt | 2019

    Freier Zugriff

    Effect of Cryogenic Treatment of Copper Electrode on Electro-Discharge Machining

    Siddhi Jailani, H / Mouda, Pervaz Ahmed | SAE Technical Papers | 2017


    Investigation on the cutting mechanism when machining free cutting steels

    Chen,H.F. / Li,N.C. / Tang,M.Q. et al. | Kraftfahrwesen | 1994