Tham khảo tài liệu 'laser welding part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 74 Laser Welding location. It has been found that the plate flatness needs to be maintained to be within - 10 pm for the welding process to be consistent. In practical implementation an auto-focus system must be developed to maintain proper focusing so that crack fusion can be achieved even for curved plates. Another important technical difficulty is related to crack tracing. An automatic crack tracing system needs to be developed for practical implementation. 7. References Allen C. M. Verhaeghe G. Hilton P. A. Heason . Prangnell . 2006 Laser and hybrid laser-MIG welding of and thick aluminium aerospace alloy. Materials Science Forum 519-521 2 . Baker . and Jones R. 1988 Bonded repair of aircarft structures Martinus Nijhoff Publishers. Barthélemy O. Margot J. Chaker M. Sabsabi M Vidal F. Johnston . Laville S. Le Drogoff B. 2005 Influence of the laser parameters on the space and time characteristics of an aluminium laser-induced plasma. Spectrochimica Acta Part B 60 pp. 905-914. Brown R. T. 2008 Keyhole welding studies with a moderate-power high brightness fiber laser. Journal of Laser Applications 20 4 pp. 201-208. Cao X. Wallace W. Immarigeon . and Poon C. 2003a Research in laser welding of wrought aluminium alloys. I. laser welding processes. Materials and Manufacturing Processes 18 1 pp. 1-22. Cao X. Wallace W. Immarigeon . and Poon C. 2003b Research in laser welding of wrought aluminium alloys. II. metallurgical microstructures defects and mechanical properties. Materials and Manufacturing Processes 18 1 pp. 23-49. Carslaw H. S. Jaeger J. C. 1962 Conduction of Heat in Solids 2nd edition Oxford Clarendon pp. 390. Cieslak M. J. 1992 Phase transformations in weldments new materials and new perspectives. 3rd Int. Conf on Trends in Welding Research Gatlingburg TN pp. 229. Dausinger F. Rapp J. Beck M. Faisst Hack R. Hugel H. 1996 Welding of aluminium a challenging opportunity for laser technology. Journal of Laser .
