Study on Heating Process of Ultrasonic Welding for Thermoplastics-Reference-Cited by-同舟云学术

Study on Heating Process of Ultrasonic Welding for Thermoplastics

Published:2009-12-14 Issue:5 Volume:23 Page:647-664
ISSN:0892-7057
Container-title:Journal of Thermoplastic Composite Materials
language:en
Short-container-title:Journal of Thermoplastic Composite Materials

Author:

Zongbo Zhang ¹,Xiaodong Wang ²,Yi Luo ³,Zhenqiang Zhang ¹,Liding Wang ²

Affiliation:

1. Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116023, China

2. Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, China

3. Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, China,

Abstract

Heating mechanisms of ultrasonic welding for thermoplastics were studied via numerical simulation and experiment. Relationship between dynamic modulus and static relaxation modulus of thermoplastics was theoretically analyzed. Segment time—temperature equivalency equation for different temperature ranges and a method for directly separating viscoelastic heat from strain energy were used in the simulation. Temperature measurement tests with poly(methyl methacrylate) specimens were carried out to verify the simulation results. Results of simulation and experiment reveal that interfacial friction rather than viscoelastic heat initially start the whole welding process. Viscoelastic heating becomes dominant when temperature reaches Tg (glass transition temperature) of the material. And viscoelastic heat provides most required heat during welding.

Publisher

SAGE Publications

Subject

Condensed Matter Physics,Ceramics and Composites

Link

http://journals.sagepub.com/doi/pdf/10.1177/0892705709356493

Reference17 articles.

1. An ultrasonic welding based process for building up a new class of inert fluidic microsensors and -actuators from polymers

2. Ultrasonic nanowelding of carbon nanotubes to metal electrodes

3. Estimates for process conditions during the ultrasonic welding of thermoplastics

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