Fundamentals of Force-Controlled Friction Riveting: Part II - Joint Global Mechanical Performance and Energy Efficiency

Goncalo Filipe Pina Cipriano, Lucian A. Blaga, Jorge F. dos Santos, Pedro Vilaça, Sergio T. Amancio-Filho

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

The present work investigates the correlation between energy efficiency and global mechanical performance of hybrid aluminum alloy AA2024 (polyetherimide joints), produced by force-controlled friction riveting. The combinations of parameters followed a central composite design of experiments. Joint formation was correlated with mechanical performance via a volumetric ratio (0.28⁻0.66 a.u.), with a proposed improvement yielding higher accuracy. Global mechanical performance and ultimate tensile force varied considerably across the range of parameters (1096⁻9668 N). An energy efficiency threshold was established at 90 J, until which, energy input displayed good linear correlations with volumetric ratio and mechanical performance (R-sq of 0.87 and 0.86, respectively). Additional energy did not significantly contribute toward increasing mechanical performance. Friction parameters (i.e., force and time) displayed the most significant contributions to mechanical performance (32.0% and 21.4%, respectively), given their effects on heat development. For the investigated ranges, forging parameters did not have a significant contribution. A correlation between friction parameters was established to maximize mechanical response while minimizing energy usage. The knowledge from Parts I and II of this investigation allows the production of friction riveted connections in an energy efficient manner and control optimization approach, introduced for the first time in friction riveting.
Originalspracheenglisch
FachzeitschriftMaterials
DOIs
PublikationsstatusVeröffentlicht - 2018

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Riveting
Energy efficiency
Friction
Polyetherimides
Forging
Design of experiments
Aluminum alloys
Composite materials

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    ASJC Scopus subject areas

    • !!Materials Science(all)

    Fields of Expertise

    • Advanced Materials Science

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    Fundamentals of Force-Controlled Friction Riveting: Part II - Joint Global Mechanical Performance and Energy Efficiency. / Pina Cipriano, Goncalo Filipe; Blaga, Lucian A. ; dos Santos, Jorge F. ; Vilaça, Pedro ; T. Amancio-Filho, Sergio.

    in: Materials, 2018.

    Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

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    title = "Fundamentals of Force-Controlled Friction Riveting: Part II - Joint Global Mechanical Performance and Energy Efficiency",
    abstract = "The present work investigates the correlation between energy efficiency and global mechanical performance of hybrid aluminum alloy AA2024 (polyetherimide joints), produced by force-controlled friction riveting. The combinations of parameters followed a central composite design of experiments. Joint formation was correlated with mechanical performance via a volumetric ratio (0.28⁻0.66 a.u.), with a proposed improvement yielding higher accuracy. Global mechanical performance and ultimate tensile force varied considerably across the range of parameters (1096⁻9668 N). An energy efficiency threshold was established at 90 J, until which, energy input displayed good linear correlations with volumetric ratio and mechanical performance (R-sq of 0.87 and 0.86, respectively). Additional energy did not significantly contribute toward increasing mechanical performance. Friction parameters (i.e., force and time) displayed the most significant contributions to mechanical performance (32.0{\%} and 21.4{\%}, respectively), given their effects on heat development. For the investigated ranges, forging parameters did not have a significant contribution. A correlation between friction parameters was established to maximize mechanical response while minimizing energy usage. The knowledge from Parts I and II of this investigation allows the production of friction riveted connections in an energy efficient manner and control optimization approach, introduced for the first time in friction riveting.",
    keywords = "friction; riveting; hybrid structures; joining; response surface",
    author = "{Pina Cipriano}, {Goncalo Filipe} and Blaga, {Lucian A.} and {dos Santos}, {Jorge F.} and Pedro Vila{\cc}a and {T. Amancio-Filho}, Sergio",
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    T1 - Fundamentals of Force-Controlled Friction Riveting: Part II - Joint Global Mechanical Performance and Energy Efficiency

    AU - Pina Cipriano, Goncalo Filipe

    AU - Blaga, Lucian A.

    AU - dos Santos, Jorge F.

    AU - Vilaça, Pedro

    AU - T. Amancio-Filho, Sergio

    PY - 2018

    Y1 - 2018

    N2 - The present work investigates the correlation between energy efficiency and global mechanical performance of hybrid aluminum alloy AA2024 (polyetherimide joints), produced by force-controlled friction riveting. The combinations of parameters followed a central composite design of experiments. Joint formation was correlated with mechanical performance via a volumetric ratio (0.28⁻0.66 a.u.), with a proposed improvement yielding higher accuracy. Global mechanical performance and ultimate tensile force varied considerably across the range of parameters (1096⁻9668 N). An energy efficiency threshold was established at 90 J, until which, energy input displayed good linear correlations with volumetric ratio and mechanical performance (R-sq of 0.87 and 0.86, respectively). Additional energy did not significantly contribute toward increasing mechanical performance. Friction parameters (i.e., force and time) displayed the most significant contributions to mechanical performance (32.0% and 21.4%, respectively), given their effects on heat development. For the investigated ranges, forging parameters did not have a significant contribution. A correlation between friction parameters was established to maximize mechanical response while minimizing energy usage. The knowledge from Parts I and II of this investigation allows the production of friction riveted connections in an energy efficient manner and control optimization approach, introduced for the first time in friction riveting.

    AB - The present work investigates the correlation between energy efficiency and global mechanical performance of hybrid aluminum alloy AA2024 (polyetherimide joints), produced by force-controlled friction riveting. The combinations of parameters followed a central composite design of experiments. Joint formation was correlated with mechanical performance via a volumetric ratio (0.28⁻0.66 a.u.), with a proposed improvement yielding higher accuracy. Global mechanical performance and ultimate tensile force varied considerably across the range of parameters (1096⁻9668 N). An energy efficiency threshold was established at 90 J, until which, energy input displayed good linear correlations with volumetric ratio and mechanical performance (R-sq of 0.87 and 0.86, respectively). Additional energy did not significantly contribute toward increasing mechanical performance. Friction parameters (i.e., force and time) displayed the most significant contributions to mechanical performance (32.0% and 21.4%, respectively), given their effects on heat development. For the investigated ranges, forging parameters did not have a significant contribution. A correlation between friction parameters was established to maximize mechanical response while minimizing energy usage. The knowledge from Parts I and II of this investigation allows the production of friction riveted connections in an energy efficient manner and control optimization approach, introduced for the first time in friction riveting.

    KW - friction; riveting; hybrid structures; joining; response surface

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    DO - 10.3390/ma11122489

    M3 - Article

    JO - Materials

    JF - Materials

    SN - 1996-1944

    ER -