naa a22 4500 510823556 CHVBK 20180411083545.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s12541-013-0252-2 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0252-2 Drilling machinability evaluation on new developed high-strength T800S/250F CFRP laminates [Elektronische Daten] [Jinyang Xu, Qinglong An, Xiaojiang Cai, Ming Chen] The new developed high-strength CFRP laminates are widely employed in varieties of applications and are mainly used in main loadbearing structural components of large commercial aircrafts. Drilling is one of the important operations in manufacturing composite structure, often a final operation during assembly. Defects such as burrs and delamination in drilling of CFRP are always serious problems and lead to rejection and impose heavy loss. In the present research, the machinability of a new developed high-strength T800S/250F CFRP laminate is evaluated by using CVD coated twist drill and CVD coated dagger drill. The machinability was investigated in terms of drilling forces, burr defect, hole wall surface morphology and delamination damage. The results indicate that feed rate is the most significant factor affecting the machined surface finish followed by the spindle speed. The dagger drill showed excellent drilling performance than the twist drill and was more suitable for drilling of T800S/250F CFRP laminate. The results also highlight the importance of employing the high speed drilling to minimize the drilling-induced defects. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 High-strength CFRP laminates nationallicence Drilling forces nationallicence Burr defect nationallicence Hole wall surface morphology nationallicence Delamination nationallicence CFRP : Carbon fiber reinforced polymer nationallicence n : Spindle speed nationallicence f : Feed rate nationallicence F a : Thrust force nationallicence T : Torque nationallicence θ : Fiber cutting angle nationallicence A : Burr area nationallicence F d : Delamination factor nationallicence N : Drilled hole number nationallicence Xu Jinyang School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut An Qinglong School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut Cai Xiaojiang School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut Chen Ming School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/10(2013-10-01), 1687-1696 2234-7593 14:10<1687 2013 14 12541 https://doi.org/10.1007/s12541-013-0252-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0252-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Jinyang School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut NATIONALLICENCE 700 1- An Qinglong School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Cai Xiaojiang School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Chen Ming School of Mechanical Engineering, Shanghai Jiao Tong University, No.800, Dong Chuan Road, 200240, Shanghai, P. R. China aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/10(2013-10-01), 1687-1696 2234-7593 14:10<1687 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer