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Ultrasonic welding of CF/PPS composites with integrated triangular energy directors : melting, flow and weld strength development. / Villegas, Irene Fernandez; Palardy, Genevieve.

In: Composite Interfaces (Print), Vol. 24, No. 5, 13.06.2017, p. 515-528.

Research output: Scientific - peer-reviewArticle

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@article{f897bd5ba8be4364af2bca65ab3e36b8,
title = "Ultrasonic welding of CF/PPS composites with integrated triangular energy directors: melting, flow and weld strength development",
abstract = "This paper presents a fully experimental study on melting, flow and weld strength development during ultrasonic welding of CF/PPS composites with integrated triangular energy directors. The main goal of this research was assessing whether the heating time to achieve maximum weld strength could be significantly reduced as compared to ultrasonic welding with flat energy directors. The main conclusion is that, in the specific case under study, the triangular energy directors did heat up, melt and collapse approximately two times faster than the time it took for the flat energy directors to melt and significantly flow. However the heating time needed to achieve maximum weld strength for the integrated triangular energy directors did not differ drastically from that for flat energy directors. This was caused by the fact that a fully welded overlap was not directly achieved right after the collapsing of the triangular energy directors. Instead a solidified resin-rich interface was created which needed to be re-melted as a whole in order to achieve a fully welded overlap and hence maximum weld strength.",
keywords = "flat energy directors, Thermoplastic composites, triangular energy directors, ultrasonic welding",
author = "Villegas, {Irene Fernandez} and Genevieve Palardy",
year = "2017",
month = "6",
doi = "10.1080/09276440.2017.1236626",
volume = "24",
pages = "515--528",
journal = "Composite Interfaces (Print)",
issn = "0927-6440",
publisher = "Taylor & Francis",
number = "5",

}

RIS

TY - JOUR

T1 - Ultrasonic welding of CF/PPS composites with integrated triangular energy directors

T2 - Composite Interfaces (Print)

AU - Villegas,Irene Fernandez

AU - Palardy,Genevieve

PY - 2017/6/13

Y1 - 2017/6/13

N2 - This paper presents a fully experimental study on melting, flow and weld strength development during ultrasonic welding of CF/PPS composites with integrated triangular energy directors. The main goal of this research was assessing whether the heating time to achieve maximum weld strength could be significantly reduced as compared to ultrasonic welding with flat energy directors. The main conclusion is that, in the specific case under study, the triangular energy directors did heat up, melt and collapse approximately two times faster than the time it took for the flat energy directors to melt and significantly flow. However the heating time needed to achieve maximum weld strength for the integrated triangular energy directors did not differ drastically from that for flat energy directors. This was caused by the fact that a fully welded overlap was not directly achieved right after the collapsing of the triangular energy directors. Instead a solidified resin-rich interface was created which needed to be re-melted as a whole in order to achieve a fully welded overlap and hence maximum weld strength.

AB - This paper presents a fully experimental study on melting, flow and weld strength development during ultrasonic welding of CF/PPS composites with integrated triangular energy directors. The main goal of this research was assessing whether the heating time to achieve maximum weld strength could be significantly reduced as compared to ultrasonic welding with flat energy directors. The main conclusion is that, in the specific case under study, the triangular energy directors did heat up, melt and collapse approximately two times faster than the time it took for the flat energy directors to melt and significantly flow. However the heating time needed to achieve maximum weld strength for the integrated triangular energy directors did not differ drastically from that for flat energy directors. This was caused by the fact that a fully welded overlap was not directly achieved right after the collapsing of the triangular energy directors. Instead a solidified resin-rich interface was created which needed to be re-melted as a whole in order to achieve a fully welded overlap and hence maximum weld strength.

KW - flat energy directors

KW - Thermoplastic composites

KW - triangular energy directors

KW - ultrasonic welding

UR - http://www.scopus.com/inward/record.url?scp=84990037000&partnerID=8YFLogxK

UR - http://resolver.tudelft.nl/uuid:f897bd5b-a8be-4364-af2b-ca65ab3e36b8

U2 - 10.1080/09276440.2017.1236626

DO - 10.1080/09276440.2017.1236626

M3 - Article

VL - 24

SP - 515

EP - 528

JO - Composite Interfaces (Print)

JF - Composite Interfaces (Print)

SN - 0927-6440

IS - 5

ER -

ID: 11722021