摘要
在快速成形技术中 ,扫描激光与物质的物理化学作用决定了加工零件的质量和加工效率 ;SLS(激光选区烧结 )成形技术中的扫描激光能量大小和分布对加工件的质量有决定作用。分析了激光扫描的能量大小和分布 ,讨论了扫描激光的有关参数对扫描能量大小和分布的影响规律 ;指出一定间隔叠加扫描的激光能量大小与扫描间隔是一个非线形关系 ,其分布也与扫描间隔有密切的关系 ;激光束直径、扫描速度等参数对扫描能量的大小与分布也有一定影响 ;
The coaction of scanning laser with material pro cessed impacts the quality of parts and processing efficiency. The scanning lase r energy and its distribution determine the accuracy and performance of SLS part s. The scanning laser energy and its distribution are analyzed,and influence of the relational parameter on scanning laser energy and its distribution is discu ssed in this paper. Then it is concluded that the relation of scanning laser en ergy with scanning space is nonlinear,and its distribution is associated with s canning space,and the energy and its distribution are associated with beam diam eter and scanning speed,but is irrespective with number of scanning laser lines .
出处
《激光技术》
CAS
CSCD
北大核心
2003年第2期143-144,149,共3页
Laser Technology
基金
高等学校博士学科点专项研究基金资助项目
关键词
激光选区烧结
激光扫描
扫描参数
扫描能量
selective laser sintering(SLS)
sc anning laser
scanning parameter
scanning energy
