增材制造直接分层和路径规划技术研究

Research on Direct Slicing and Path Planning Technology of Additive Manufacturing

以SolidWorks二次开发为基础,采用对三维CAD模型直接分层的方式来实现增材制造的切片分层,提取实体的轮廓数据,提高增材制造精度,免去复杂的曲面求交计算;同时开发了层内路径规划功能模块,对复杂外形零件实现轮廓偏移式和光栅扫描式填充,并提出基于主成分分析的路径优化算法,可以减少路径转折点数量,改善增材制造工艺。

Layer slicing of additive manufacturing is realized by means of direct slicing of 3 DCAD models based on second development of SolidWorks,contour data of the entity is extracted,and the precision of additive manufacturing is improved,and complicated surfaces intersection calculation is avoided.Functional module for inner areas path planning is developed,contour path patterns and raster path patterns for models with complex shape can be realized.Furthermore,a kind of optimization algorithm for path planning based on principal component analysis is proposed,by which the number of path turning points can be reduced and additive manufacturing process can be improved.