开式整体叶盘通道插铣粗加工技术的研究-中国机械工程.PDF

) ) ) 胡创国 张定华 任军学 王增强 西北工业大学现代设计与集成制造技术教育部 点实验室, 西安, 71007 : 针对整体叶盘等复杂结构件, 从锻造毛坯到最终零件加工成形, 需要切除大量的多余材料的 问题, 提出了一种开式整体叶盘通道的五坐标插铣粗加工方法利用直纹面逼近叶型曲面, 进而确定通 道粗加工区域的边界轮廓; 通过连接刀心轨迹线和刀轴驱动线上的对应点, 规划插铣粗加工叶盘通道时 的刀具轨迹加工实践表明, 利用插铣方式, 可以有效避免粗加工过程中的振动现象, 开式整体叶盘的 粗加工效率提高50% 以上 : ; ; ; : T P391; T G659 : 1004 ) 13 X( 007) 0 ) 0153 ) 03 Research on the Plunge Milling of Blisk Tunnel Hu Chuangguo Zhang Dinghua Ren Junxue Wang Zengqiang The Key Laboratory of Contemporary Design and Integrated M anufacturing T echnology , M inistry of Education, Northw estern Polytechnical U niversity , Xi. an, 71007 Abstract: For blisk, a big portion of the raw materials needs to be removed by roughing before the finishing process. T he ruled surfaces w ere used to approximate the freeform surface of blade, at- tention w as focused on the 5- axis plunge milling of blisk. s tunnel. And the boundary contour of the tunnel w as then determined. T he tool paths for plunge milling tunnel region w ere generated by linking the corresponding points betw een tool centre curves and tool axis drive curves. T he proposed strategy can improve the machining efficiency about 50% , and the vibration phenomenon during roughing is suppressed completely. Key words: blisk; tunnel; ruled surface; plunge milling 0 引言 , , , , , ( 60%~ 90% ) , [ 1] , , , : 005) 1 ) 1 , Rock[ J] . T unnelling and Undergr