Introduction to the welding of thermoplastic composites

Composites Knowledge Network and SAMPE Canada

In this webinar we will look at the welding of thermoplastic composites in more detail.

When fabricating a composite structure, subcomponents need to be assembled. For conventional thermoset composites, this is done using adhesive bonding or mechanical fastening. In the case of thermoplastic composites, welding, also called fusion bonding, can be used as a joining method. Welding offers several advantages over the other joining methods as it is a fast process that does not require drilling holes in the parts. It consists of bringing together two thermoplastic composite parts and heating their interface above the polymer glass transition or melting temperature. The joining interface is then cooled down under pressure, resulting in a welded joint. This talk will introduce the fundamental mechanisms responsible for adhesion in any welding process. A review of various welding processes will then be presented with special focus on resistance, induction and ultrasonic welding. Finally, joints quality characterization methods will be discussed, and general welding guidelines will be provided. Content discussed in the webinar is linked to the Knowledge in Practice Centre (KPC), allowing users to access this and other content in a consistent and coherent manner. The webinar will be recorded and available for viewing on the KPC.

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Introduction to the welding of thermoplastic composites

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Introduction to the welding of thermoplastic composites

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