Fundamentals of force-controlled friction riveting: Part II-Joint global mechanical performance and energy efficiency

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Fundamentals of force-controlled friction riveting : Part II-Joint global mechanical performance and energy efficiency. / Cipriano, Gonçalo Pina; Blaga, Lucian A.; dos Santos, Jorge F.; Vilaça, Pedro; Amancio-Filho, Sergio T.

In: Materials, Vol. 11, No. 12, 2489, 07.12.2018.

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@article{43723f3e428f4c689887283d5162bf2a,
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, Hybrid structures, Joining, Response surface, Riveting",
author = "Cipriano, {Gon{\cc}alo Pina} and Blaga, {Lucian A.} and {dos Santos}, {Jorge F.} and Pedro Vila{\cc}a and Amancio-Filho, {Sergio T.}",
year = "2018",
month = "12",
day = "7",
doi = "10.3390/ma11122489",
language = "English",
volume = "11",
journal = "Materials",
issn = "1996-1944",
publisher = "MDPI AG",
number = "12",

}

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TY - JOUR

T1 - Fundamentals of force-controlled friction riveting

T2 - Part II-Joint global mechanical performance and energy efficiency

AU - Cipriano, Gonçalo Pina

AU - Blaga, Lucian A.

AU - dos Santos, Jorge F.

AU - Vilaça, Pedro

AU - Amancio-Filho, Sergio T.

PY - 2018/12/7

Y1 - 2018/12/7

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

KW - Hybrid structures

KW - Joining

KW - Response surface

KW - Riveting

UR - http://www.scopus.com/inward/record.url?scp=85058125191&partnerID=8YFLogxK

U2 - 10.3390/ma11122489

DO - 10.3390/ma11122489

M3 - Article

VL - 11

JO - Materials

JF - Materials

SN - 1996-1944

IS - 12

M1 - 2489

ER -

ID: 30783678