机械科学与技术2017，Vol.36Issue(10)：1562-1569,8.DOI:10.13433/j.cnki.1003-8728.2017.1013
金属板料单点渐进成形自适应螺旋线轨迹生成研究
Adaptive Spiral Tool Path Generation in Single Point Incremental Forming of Sheet Metal
摘要
Abstract
The equal height track is the main processing method of sheet metal incremental forming.Through the equal height track forming mode of existence problem analysis,a to Vector Adaptive spiral tool path generation algorithm based on STereo Lithography(STL) model patch method is proposed.By using vertex offset offset method of STL data model,to offset model of STL model by using adaptive slicing algorithm of calculation model and hierarchical surface intersection,and Z axis is parallel to the contour and the contour is discredited into numbered by point of adjacent contour interpolation is to adaptive spiral trajectory.Finally,the case shows that the shape of the spiral line can greatly shorten the forming time,which can avoid the surface quality caused by the cutter location in contour forming.In addition,in the test of the shape forming part,the trajectory generated by the algorithm can ensure the surface quality of the formed parts,the spiral forming trajectory generated by this algorithm can greatly reduce the forming time,which can avoid the surface quality problems caused by the tool head and the sheet metal.Meanwhile,double angle forming parts in different regions of the surface roughness of consistency and that adaptive spiral trajectory in forming into shape piece can avoid the contour forming surface roughness of diversity,in a unified into angular forming surface roughness on has broad application prospects.关键词
渐进成形/螺旋线轨迹/自适应/STL模型Key words
incremental forming/spiral trajectory/adaptive/STL model分类
矿业与冶金引用本文复制引用
周建宇,杨明顺,李言,徐青..金属板料单点渐进成形自适应螺旋线轨迹生成研究[J].机械科学与技术,2017,36(10):1562-1569,8.基金项目
国家自然科学基金项目(51475366、51475146)与陕西省科技计划项目(2016JM5074)资助 （51475366、51475146）
