Laser-induced periodic surface structures on stainless steel moulds for thermoplastic composite materials manufacturing

    Research output: Contribution to conferencePaper

    Abstract

    Steel moulds are widely used as forming tools during the fabrication of fibre reinforced thermoplastic composite parts. The aim of this work is to study sub-micron laser-induced surface modifications which help to control interfacial properties, such as undesirable sticking, between the composite polymer and the steel mould material.
    Stainless steel (AISI 430) samples were machined with a laser with wavelength of λ = 515 nm and 7 ps pulse duration. The periodicity of the Laser-induced Periodic Surface Structures (LIPSS) was determined, via fast Fourier transform of scanning electron microscope images, as a function of input parameters, such as effective number of laser pulses, pulse energy and accumulated fluence.
    Above a certain threshold, LIPSS appear over a broad range of fluences. Spatial frequencies were found to be between about λ/10 and ~λ for laser pulse energies of up to ~1 µJ. First results from experiments on interaction of composite polymers and steel moulds are also shown.
    Original languageEnglish
    Publication statusPublished - 24 Jun 2019
    EventLasers in Manufacturing 2019 - International Congress Center Munich, Munich, Germany
    Duration: 24 Jun 201927 Jun 2019
    https://www.wlt.de/lim/index.html

    Conference

    ConferenceLasers in Manufacturing 2019
    Abbreviated titleLiM 2019
    CountryGermany
    CityMunich
    Period24/06/1927/06/19
    OtherAs a part of the World of Photonics Congress
    Internet address

    Fingerprint

    stainless steels
    manufacturing
    composite materials
    lasers
    steels
    fluence
    pulses
    polymers
    periodic variations
    pulse duration
    electron microscopes
    fabrication
    scanning
    fibers
    thresholds
    energy
    wavelengths
    interactions

    Cite this

    @conference{8845912a105b4f9085515a627bee4f13,
    title = "Laser-induced periodic surface structures on stainless steel moulds for thermoplastic composite materials manufacturing",
    abstract = "Steel moulds are widely used as forming tools during the fabrication of fibre reinforced thermoplastic composite parts. The aim of this work is to study sub-micron laser-induced surface modifications which help to control interfacial properties, such as undesirable sticking, between the composite polymer and the steel mould material. Stainless steel (AISI 430) samples were machined with a laser with wavelength of λ = 515 nm and 7 ps pulse duration. The periodicity of the Laser-induced Periodic Surface Structures (LIPSS) was determined, via fast Fourier transform of scanning electron microscope images, as a function of input parameters, such as effective number of laser pulses, pulse energy and accumulated fluence. Above a certain threshold, LIPSS appear over a broad range of fluences. Spatial frequencies were found to be between about λ/10 and ~λ for laser pulse energies of up to ~1 µJ. First results from experiments on interaction of composite polymers and steel moulds are also shown.",
    author = "Matthias Feinaeugle and Marek Mezera and R{\"o}mer, {Gerardus Richardus, Bernardus, Engelina}",
    year = "2019",
    month = "6",
    day = "24",
    language = "English",
    note = "Lasers in Manufacturing 2019, LiM 2019 ; Conference date: 24-06-2019 Through 27-06-2019",
    url = "https://www.wlt.de/lim/index.html",

    }

    TY - CONF

    T1 - Laser-induced periodic surface structures on stainless steel moulds for thermoplastic composite materials manufacturing

    AU - Feinaeugle, Matthias

    AU - Mezera, Marek

    AU - Römer, Gerardus Richardus, Bernardus, Engelina

    PY - 2019/6/24

    Y1 - 2019/6/24

    N2 - Steel moulds are widely used as forming tools during the fabrication of fibre reinforced thermoplastic composite parts. The aim of this work is to study sub-micron laser-induced surface modifications which help to control interfacial properties, such as undesirable sticking, between the composite polymer and the steel mould material. Stainless steel (AISI 430) samples were machined with a laser with wavelength of λ = 515 nm and 7 ps pulse duration. The periodicity of the Laser-induced Periodic Surface Structures (LIPSS) was determined, via fast Fourier transform of scanning electron microscope images, as a function of input parameters, such as effective number of laser pulses, pulse energy and accumulated fluence. Above a certain threshold, LIPSS appear over a broad range of fluences. Spatial frequencies were found to be between about λ/10 and ~λ for laser pulse energies of up to ~1 µJ. First results from experiments on interaction of composite polymers and steel moulds are also shown.

    AB - Steel moulds are widely used as forming tools during the fabrication of fibre reinforced thermoplastic composite parts. The aim of this work is to study sub-micron laser-induced surface modifications which help to control interfacial properties, such as undesirable sticking, between the composite polymer and the steel mould material. Stainless steel (AISI 430) samples were machined with a laser with wavelength of λ = 515 nm and 7 ps pulse duration. The periodicity of the Laser-induced Periodic Surface Structures (LIPSS) was determined, via fast Fourier transform of scanning electron microscope images, as a function of input parameters, such as effective number of laser pulses, pulse energy and accumulated fluence. Above a certain threshold, LIPSS appear over a broad range of fluences. Spatial frequencies were found to be between about λ/10 and ~λ for laser pulse energies of up to ~1 µJ. First results from experiments on interaction of composite polymers and steel moulds are also shown.

    M3 - Paper

    ER -