Microwave facilities for welding thermoplastic composites and preliminary results

Ku, Harry S. and Siores, Elias and Ball, James A. R. (1999) Microwave facilities for welding thermoplastic composites and preliminary results. Journal of Microwave Power and Electromagnetic Energy, 34 (4). pp. 195-205. ISSN 0832-7823


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[Abstract]: The wide range of applications of microwave technology in manufacturing industries has been well documented (NRC, 1994; Thuery, 1992). In this paper, a new way of joining fibre reinforced thermoplastic composites with or without primers is presented. The microwave facility used is also discussed. The effect of power input and cycle time on the heat affected zone (HAZ) is detailed together with the underlying principles of test piece material interactions with the 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 discussed together with developments using filler materials, or primers in the heterogenous joining mode. The weldability dependence on the dielectric loss tangent of these materials at elevated temperatures is also described.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: No response from publisher to copyright request.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 11 Jun 2008 23:53
Last Modified: 02 Jul 2013 23:02
Uncontrolled Keywords: weldability, heat affected zone, low density polyethylene, polystyrene, nylon 66
Fields of Research : 09 Engineering > 0910 Manufacturing Engineering > 091006 Manufacturing Processes and Technologies (excl. Textiles)
URI: http://eprints.usq.edu.au/id/eprint/4164

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