Weldability and heat affected zone (HAZ) evaluation for high energy rate joining of thermoplastic composites using microwaves
Paper
Ku, Harry S., Siores, Elias and Ball, James A. R.. 1997. "Weldability and heat affected zone (HAZ) evaluation for high energy rate joining of thermoplastic composites using microwaves ." Herszberg, Isreal (ed.) 11th International Conference on Composite Materials (ICCM-11). Gold Coast, Australia 14 - 18 Jul 1997 Cambridge, United Kingdom.
| Paper/Presentation Title | Weldability and heat affected zone (HAZ) evaluation for high energy rate joining of thermoplastic composites using microwaves |
|---|---|
| Presentation Type | Paper |
| Authors | Ku, Harry S. (Author), Siores, Elias (Author) and Ball, James A. R. (Author) |
| Editors | Herszberg, Isreal |
| Journal or Proceedings Title | Proceedings of the 11th International Conference on Composite Materials (ICCM-11) |
| Journal Citation | VI, pp. 55-64 |
| Number of Pages | 10 |
| Year | 1997 |
| Place of Publication | Cambridge, United Kingdom |
| Web Address (URL) of Paper | https://iccm-central.org/Proceedings/ICCM11proceedings/papers/ICCM11_V6_7.pdf |
| Web Address (URL) of Conference Proceedings | https://iccm-central.org/Proceedings/ICCM11proceedings/index.htm |
| Conference/Event | 11th International Conference on Composite Materials (ICCM-11) |
| Event Details | 11th International Conference on Composite Materials (ICCM-11) Parent International Conference on Composite Materials Delivery In person Event Date 14 to end of 18 Jul 1997 Event Location Gold Coast, Australia |
| Abstract | [Summary]: Industrial microwave technology for processing polymers and polymer based composites is currently in a state of considerable flux. This paper extends the applications horizon of microwaves in the area of reinforced thermoplastic composites joining, and places emphasis on the development of equipment and facilities aiming at maximising bond quality. It discusses the microwave facility used, including a 0.8 kW variable control power generator operating at 2.45 GHz, waveguide and a tuning piston designed for obtaining a standing wave at the seam of the butted and lapped test pieces. The effect of power input and cycle time on the heat affected zone is detailed together with the underlying principles of test piece material interactions with electromagnetic field. The process of autogenous joining of 33% by weight of random glass fibre reinforced nylon 66, polystyrene (PS) and low density polyethylene (LDPE) as well as 23.3 % by weight of carbon fibre reinforced PS thermoplastic composites is mentioned together with developments using filler materials, or primers in the heterogenous joining mode. The weldability dependence on the dielectric loss tangent of these materials is also described. |
| Keywords | complex relative permitivity, loss tangent, fibre-reinforced thermoplastic composites, microwave and peripheral facilities, short-circuit plunger, butted test pieces. |
| ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
| Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
| Byline Affiliations | Department of Mechanical and Mechatronic Engineering |
| Swinburne University of Technology | |
| Department of Electrical, Electronic and Computer Engineering |
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