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2007年 第2卷 第4期

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《机械工程前沿（英文）》 >> 2007年 第2卷 第4期 doi: 10.1007/s11465-007-0071-1

New kind of subarea-parallel scanning mode for laser metal deposition shaping

1.Key Laboratory of Advanced Manufacture Technology, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China; Graduate University of Chinese Academy of Science, Beijing 100039, China; 2.Key Laboratory of Advanced Manufacture Technology, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China

发布日期： 2007-12-05
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A scanning mode is the key technology in a laser metal deposition shaping (LMDS) fabrication process. On the basis of the analysis of existing scanning modes and their influences on the fabrication efficiency and the quality of parts, some disadvantages of them are pointed out. A new kind of subarea-parallel scanning mode for LMDS based on a subdividing profiled outline into monotonous polygon subareas is presented. First, based on the principle of point visibility, inner loops are eliminated, and simple polygons are subdivided into monotonous polygons with the minimal zones. Second, the parallel scanning paths of all monotonous polygon subareas are finished, which diminishes the length of the scanning line. The practical application shows that the scanning mode can enhance the fabrication efficiency and quality.

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