Investigation of CFRP laser milling using a 30 W Q-switched Yb:YAG fiber laser: Effect of process parameters on removal mechanisms and HAZ formation |
| |
| Affiliation: | 1. Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy;2. CIRTIBS Laboratory, University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy;3. Department of Industrial Engineering, University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy;1. State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, Hunan 410082, China;2. Hunan Provincial Key Laboratory of Intelligent Laser Manufacturing, Hunan University, Changsha, Hunan 410082, China;1. School of Media Science, Tokyo University of Technology, 1404-1, Katakura-chou, Hachiouji-shi, Tokyo, 192-0914, Japan;2. Smart Beam Processing Research Center,Joining and Welding Research Institute, Osaka University, 11-1Mihogaoka Ibaraki-shi Osaka,567-0047, Japan;1. Center of Physics and Engineering of Advanced Materials (CeFEMA), Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;2. Instituto Superior de Engenharia de Lisboa, Avenida Conselheiro Emídio Navarro No. 1, 1959-007 Lisboa, Portugal;3. Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;4. DEMec, FEUP, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;5. Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Rua Dr. Roberto Frias 400, 4200-465 Porto, Portugal |
| |
| Abstract: | A study on laser machining of Carbon Fibre Reinforced Polymer (CFRP) is presented. Experimental tests were carried out on a 4 mm thick CFRP sheet, using a Q-switched 30 W Yb:YAG fiber laser. The aim of the paper is to detect which process parameters and how they affect the laser beam–material interaction, and to explain the effect of the process parameters on the removal mechanisms and HAZ formation. The process parameters examined were: the laser beam scan speed, the pulse frequency, the number of repetitions of the geometric pattern, the distance between two consecutive scan lines and the scanning strategy. The ANalysis Of VAriance (ANOVA) was applied to a two-level factorial design, specifically developed for this aim. Experimental results showed the presence of different interaction mechanisms such as: ablation, matrix burning and mechanical effect. The damage mechanisms and the influence of the process parameters on the HAZ extent are discussed too. |
| |
| Keywords: | A Carbon fibre A Thermosetting resin E Machining Laser milling |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
