Friction Riveting of Polymer–Metal Multimaterial Structures

Amancio‐Filho, Sergio T.; Blaga, Lucian

doi:10.1002/9781119429807.ch8

Cited by 11 publications

(13 citation statements)

References 27 publications

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“…Previous studies demonstrated the correlation between a volumetric ratio and the global mechanical performance of the joint [6,8,9]. The volumetric ratio establishes a simplified quotient between the volume of the plastically deformed rivet and the volume of polymer offering mechanical resistance to a rivet-pullout action.…”

Section: Methodsmentioning

confidence: 99%

“…Both friction and forging forces are axial forces applied to the rivet. Further detailed descriptions of the process and its configurations can be found in the literature [6,8] and in Part I of this work [3].…”

Section: The Processmentioning

confidence: 99%

“…Their work assessed the influence of the process parameters on the ultimate lap shear force and established a predictive analytical model, via a full-factorial design of experiments and analysis of variance (ANOVA). For a recent and comprehensive overview of friction-based joining processes for polymer-metal hybrid structures, please refer to Reference [6].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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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.

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Section: Methodsmentioning

confidence: 99%

Section: The Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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“…The thermal bonding technique requires a high temperature and high pressure in the bonding process, leading to deformation and damage of the structure [ 24 ]. Although the adhesive bonding approach has some disadvantages, such as the need to design the joints in the proper way or to have adherent substrates, the requirement for specific clamping devices to fix the joint during cure, and the requirement for specific processing (surface pretreatment, curing, process control) [ 25 ], the adhesive bonding technique offers several advantages, including a simple process, lower cost, short time, and no need for heating when compared with the above two technologies [ 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

A Simple Method for Fabricating Ink Chamber of Inkjet Printheads

Huang

Tang²,

Liu

et al. 2022

Micromachines

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The process of fabricating chambers is becoming more important for inkjet printheads. However, there are some problems with the majority of present fabrication methods, such as nozzle structural deformation, blocked chambers, and collapsed chambers. In this paper, we propose a new process for preparing printhead chips by bonding tantalum nitride thin-film heaters and SU-8 chamber film using UV curing optical adhesive. This process simplifies the preparation process of printhead chips and overcomes the limitations of the traditional adhesive bonding process. Firstly, a chamber film was prepared by the molding lithography process based on a PDMS mold. The chamber film was then bonded with the membrane heater by the adhesive bonding process based on film transfer to form a thermal bubble printhead chip. Finally, the chip was integrated with other components to form a thermal inkjet printhead. The results show that the overflow width of bonding interface of 3.10 μm and bonding strength of 3.3 MPa were achieved. In addition, the printhead could stably eject polyvinyl pyrrolidone binder droplets, which are expected to be used for binder-jetting printing of powder such as ceramics, metals, and sand molds. These results might provide new clues to better understand the adhesive bonding process based on film transfer and the new applications of inkjet printheads.

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“…The performance of components for aeronautical or automotive industries is constantly being improved. In particular, there is a high demand for combinations of different material classes in form of hybrid joints, e.g., between metals and polymer composites to reduce component weight or to improve functionality in order to increase efficiency [1,2]. Ultrasonic welding is one promising technique to realise these hybrid joints.…”

Section: Introductionmentioning

confidence: 99%

Sonotrodes for Ultrasonic Welding of Titanium/CFRP-Joints—Materials Selection and Design

Liesegang

Beck

et al. 2021

JMMP

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Ultrasonic welding of titanium alloy Ti6Al4V to carbon fibre reinforced polymer (CFRP) at 20 kHz frequency requires suitable welding tools, so called sonotrodes. The basic function of ultrasonic welding sonotrodes is to oscillate with displacement amplitudes typically up to 50 µm at frequencies close to the eigenfrequency of the oscillation unit. Material properties, the geometry of the sonotrode, and the sonotrode tip topography together determine the longevity of the sonotrode. Durable sonotrodes for ultrasonic welding of high-strength joining partners, e.g., titanium alloys, have not been investigated so far. In this paper, finite element simulations were used to establish a suitable design assuring the oscillation of a longitudinal eigenmode at the operation frequency of the welding machine and to calculate local mechanical stresses. The primary aim of this work is to design a sonotrode that can be used to join high-strength materials such as Ti6Al4V by ultrasonic welding considering the longevity of the welding tools and high-strength joints. Material, sonotrode geometry, and sonotrode tip topography were designed and investigated experimentally to identify the most promising sonotrode design for continuous ultrasonic welding of Ti6AlV4 and CFRP. Eigenfrequency and modal shape were measured in order to examine the reliability of the calculations and to compare the performance of all investigated sonotrodes.

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Friction Riveting of Polymer–Metal Multimaterial Structures

Cited by 11 publications

References 27 publications

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

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

A Simple Method for Fabricating Ink Chamber of Inkjet Printheads

Sonotrodes for Ultrasonic Welding of Titanium/CFRP-Joints—Materials Selection and Design

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