Thermal defect characterization and heat conduction modeling during fiber laser cutting carbon fiber reinforced polymer laminates

• Autorzy: Chen Limei , Li Maojun , Yang Xujing , Li Bin

Identyfikatory

DOI

10.1007/s43452-020-00064-8

• Języki publikacji: EN

Abstrakty

EN

High-power fiber laser has been proven to be feasible for cutting carbon fiber reinforced polymers with several advantages including noncontact force, high efficiency and flexibility, while the characteristics of thermal damage and heat conduction in materials are not yet fully understood. Continuous-wave fiber laser was applied in this work to cut 2.0-mm-thick carbon fiber reinforced polymer laminates with different layup configurations. The influence of processing parameters including laser power and cutting speed on thermal damage was investigated. The characteristics of various thermal defects on different positions of machined surface were analyzed using high-resolution SEM and mathematical models. Interestingly, swollen fibers were observed and they connected together to form irregular swollen masses. According to further analysis on the initial heat distribution, it showed that cutting speed was the main factor affecting heat accumulation. In addition, modified heat conduction model was developed to analyze heat transfer within unidirectional carbon fiber reinforced polymer laminates in comparison with experimental results, which can be applied to predict heat affect zone during high-power fiber laser cutting composite materials.

Słowa kluczowe

EN

CFRP laminate; laser cutting; thermal defect; heat conduction

PL

laminat CFRP; cięcie laserowe; przewodzenie ciepła; wada termiczna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2020
• Tom: Vol. 20, no. 2
• Strony: 453--466
• Opis fizyczny: Bibliogr. 29 poz., fot., rys., wykr.

Twórcy

autor

Chen Limei

• State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, Hunan, China

autor

Li Maojun

• State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, Hunan, China

autor

Yang Xujing

• State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, Hunan, China

autor

Li Bin

• State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, Hunan, China
• Hunan Provincial Key Laboratory of Intelligent Laser Manufacturing, Hunan University, Changsha 410082, Hunan, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)