The morphologies of roll surfaces are modified with pulsed Nd:YAG laser and characterized by topography measuring instrument (WYKO-16 DRT2TC). Sombrero shaped bumps with diameters 230-250 /spl mu/m and heights 2-4 /spl mu/m are produced by out of focus laser beam. A quantitative model is proposed to predict the bump formation during martensitic transformation. The results show: the bump height caused by martensitic transformation is very small. The key factor of macroscopic bump formation on roll surface during laser texturing is surface tension of molten metal.


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    Titel :

    Surface modification of roll by pulsed ND:YAG laser: bump formation caused by martensitic transformation


    Beteiligte:
    He Yunfeng, (Autor:in) / Du Dong, (Autor:in) / Sui Bo, (Autor:in) / Xiong Lijuan, (Autor:in) / Zhang Hua, (Autor:in)


    Erscheinungsdatum :

    2003-01-01


    Format / Umfang :

    187717 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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