摘要
SLM成形多内腔结构件时,分层算法的有效性会直接影响零件的成形精度与加工效率。因此,通过对多内腔结构零件的特征分析,提出了该类结构特征的两个判别式,并基于面积偏差比值的自适应分层算法进行了优化,有效解决了该算法无法识别切片面积变化率为零的问题,并设计了相关实验方案。经过实验验证的结果表明该优化算法在保证打印精度的前提下,大大提高了分层打印的效率。
The forming accuracy and production efficiency of the part could be affected by the effectiveness of the layering algorithm when multi-cavity structural parts are formed by SLM.Therefore,this paper analyzes the characteristics of the multi-cavity structural parts,proposes two discriminants for this kind of structural features,and optimizes the adaptive layering algorithm based on AAD.It effectively solves the problem that the algorithm cannot be used to recognize the slice area with zero change rate,then,the related experiment scheme is done.The result shows that the optimized algorithm can be used to greatly improve the layered printing efficiency under the premise of ensuring printing accuracy.
作者
孙玉龙
SUN Yulong(Collgeg of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2020年第4期124-127,共4页
Machine Building & Automation
