闭式整体叶盘通道五坐标分行定轴加工刀轴矢量规划方法

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2012, Vol. 33 ›› Issue (10): 1923-1930.

• Material Engineering and Mechanical Manufacturing • Previous Articles Next Articles

Tool Axis Orientation Planning Method of Fixed Axis in Each Cutting Line for Closed Blisk Tunnel Five-axis Machining

REN Junxue, HE Qinggong, YAO Changfeng, LIANG Yongshou, LIU Bo

The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China

Received:2011-11-01 Revised:2011-12-29 Online:2012-10-25 Published:2012-10-25
Supported by:
National Natural Science Foundation of China (50975237, 51005184); National Science and Technology Major Project (2009ZX04014-053)

Abstract

Abstract: The closed blisk of an aeroengine plays a key part in the improvement of the thrust-to-weight ratio of the new generation aeroengine, and its tunnel structure is a typical complex tunnel structure with multi-constraints. This paper proposes a new tool axis orientation planning method based on the fixed axis in each cutting line machining for closed blisk tunnel finish machining. The basic concept of the method is discussed from the machining principle, and the five-axis machining features of the closed blisk tunnel are analyzed. The calculation method of the tool axis orientation interference free domain is given based on predefining the tool and establishing the bounding sphere hierarchy tree structure of the check surface. The division of the blisk tunnel machining region is made based on the calculation and analysis of the shortest tool length of cutter location points, and the tool axis orientation planning method of fixed axis in each cutting line machining is established. Experimental results demonstrate that, compared with the five-axis linkage machining method, the fixed axis in each cutting line not only significantly improves the stability of machining and the quality of the machined blade surface, but also improves the blade finish machining efficiency.

Key words: closed blisk, tool axis orientation, 5-axis NC machining, fixed axis in each cutting line, gouging detection

CLC Number:

V261

REN Junxue, HE Qinggong, YAO Changfeng, LIANG Yongshou, LIU Bo. Tool Axis Orientation Planning Method of Fixed Axis in Each Cutting Line for Closed Blisk Tunnel Five-axis Machining[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, 33(10): 1923-1930.

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Tool Axis Orientation Planning Method of Fixed Axis in Each Cutting Line for Closed Blisk Tunnel Five-axis Machining

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[1]	Ren Junxue;Xie Zhifeng;Liang Yongshou;Yao Changfeng;Liu Bo. 5-axis Plunge Milling Path Planning of Closed Blisk [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2010, 31(1): 210-216.
[2]	REN Jun-xue;ZHANG Ding-hua;WANG Zeng-qiang;LIU Wei-wei;WANG Wen-hugy;Education Ministry of China;Northwestern Polytechnical University;Xi'an00;China). Research on the NC Machining Technique of Blisk [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2004, 25(2): 205-208.