Effect of Cutting Temperature on Bending Properties of Carbon Fibre Reinforced Plastics

Wang Ben; Yang Bowen; Wang Minghai; Zheng Yaohui; Hong Xianjun; Zhang Fan

doi:10.1515/secm-2019-0019

Science and Engineering of Composite Materials (Jan 2019)

Effect of Cutting Temperature on Bending Properties of Carbon Fibre Reinforced Plastics

Wang Ben,
Yang Bowen,
Wang Minghai,
Zheng Yaohui,
Hong Xianjun,
Zhang Fan

Affiliations

Wang Ben: Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University, Shenyang, Liaoning 110136, China
Yang Bowen: Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University, Shenyang, Liaoning 110136, China
Wang Minghai: Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University, Shenyang, Liaoning 110136, China
Zheng Yaohui: Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University, Shenyang, Liaoning 110136, China
Hong Xianjun: Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University, Shenyang, Liaoning 110136, China
Zhang Fan: Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace University, Shenyang, Liaoning 110136, China

DOI: https://doi.org/10.1515/secm-2019-0019
Journal volume & issue: Vol. 26, no. 1
pp. 394 – 401

Abstract

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High cutting temperatures are easily generated during the machining of carbon fibre reinforced plastics (CFRP) and can induce serious damage during machining such as delamination. The purpose of this paper is to study the influence of cutting temperature on the performance of CFRP after machining. CFRP specimens were heated to temperatures within the vicinity of cutting temperatures generated during machining, then air-cooled and their bending properties investigated. The results showed that temperature had significant influence on the bending stress of CFRP. With increasing temperature, bending stress decreased and was lowest when the temperature was close to the glass-transition temperature. It was concluded that the bending properties of CFRP could be seriously affected if the material temperature was close to the glass-transition temperature and maintained for a period. As a result, cutting temperature should be kept lower than the glass transition temperature during machining.

Published in Science and Engineering of Composite Materials

ISSN: 0792-1233 (Print); 2191-0359 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.degruyter.com/view/j/secm

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