Research on a Highly Efficient Multi-axis N/C Machining Technology of the Open-integrated Impeller
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摘要: 针对开式整体导叶轮的结构特点,提出了一套高效的多轴联动数控加工工艺技术。该技术将导叶轮的加工规划为粗加工和精加工两个阶段:首先利用型腔铣高效去除毛坯的大余量,然后利用基于加工过程中的工件的3+2轴的加工方式进行半精加工,该方法有效地解决了曲面局部余量分布不均的现象;重新规整驱动参数面的u、v参数,结合参数线加工路径规划方法的特点,利用边界点插补来控制刀轴矢量的方式进行精加工。实践表明:该工艺技术除了提高加工质量外,还能有效缩短导叶轮生产周期。Abstract: According to the characteristics of the open-integrated impeller,a highly efficient multi-axis N/C machining processing technology was proposed.The processing was divided into rough machining and finish machining: the roughing is conducted through processing method of 3+2 axis based on IPW and cavity milling,so that big margins can be removed and uneven distribution of local margins can be solved,while the finishing through resetting the u and v parameter lines of the driving surface,and through controlling the tool-axis vector with the interpolation of the boundary point.The machining practice shows that this processing technology can improve the processing quality and shorten the manufacturing cycle efficiently.
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[1] 白瑀.叶片高质量造型方法研究[J].机械科学与技术,2003,22(3):447～449 [2] 陈皓晖.国内外轮数控加工发展现状[J].航空制造技术,2002,(2) [3] 吴伟.五轴联动加工技术在DMU100T机床的实现[J].东方电机,2005,(2) [4] 王晓彬.叶轮加工技术研究[J].中国科技财富,2010,(14) [5] 谢国明.UG CAM实用教程[M].北京:清华大学出版社,2004 [6] 吴伟.圆柱铣刀数控加工扭曲型面成型机理与计算方法的研究[J].机械,1990,(3) [7] 张学超.闭式整体叶盘切触点规划及刀轴矢量研究[D].西北工业大学,2006 [8] Ho M C,Hwang Y R.Five-axis-tool orientation smoothing usingquaternion interpolation algorithm[J].International Journal ofMachine Tools and Manufacture,2003,43(12):1259～1267 [9] Fussell B K,Jerard R B,Hemmett J G.Modeling of cutting geom-etry and forces for 5-axis sculptured surface machining[J].Computer-aided Design,2003,35(4):333～346 [10] Heidenhain.User's Manual for Conversation Format[M].Germany:Hei-Denhain,2002 -
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