期刊
OPTICS AND LASER TECHNOLOGY
卷 36, 期 6, 页码 477-483出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2003.12.003
关键词
laser cladding; in-time motion adjustment; dimensional accuracy; surface finish; defect
This paper presents in-time motion adjustment in laser cladding manufacturing process as a means to improve dimensional accuracy and surface finish of the built part. Defects occurring during laser cladding degrade the part quality such as dimensional accuracy and surface finish. In this paper, in-time motion adjustment strategy was presented to remedy and eliminate defects occurring during laser cladding to improve the dimensional accuracy and surface finish. Based on the relationship between the motion of laser head relative to the growing part and other parameters in effects on clad profile, the laser traverse speed, stand-off distance and laser approach orientation to the existing clad layer were adjusted by instructions from a close-loop control system in real time to remedy and eliminate defects. The results of the experiments verified the effects of in-time motion adjustment on dimensional accuracy and surface finish. (C) 2003 Published by Elsevier Ltd.
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