ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Tool Axis Planning for Five-axis Machining of Complex Channel Parts
Received date: 2013-10-18
Revised date: 2013-12-05
Online published: 2013-12-10
Supported by
National Science and Technology Major Project(2013ZX04011031); National Natural Science Foundation of China (51005184, 51375393); Aeronautical Science Foundation of China (2012ZE53061, 2013ZE53060)
A new method of planning is proposed to obtain a stably changing tool axis in five-axis machining of complex channel parts. First, an efficient approach to obtain the accurate boundary of the feasible space of tool axis is established by dispersing the feasible space uniformly. Secondly, according to the proposed planning criteria, the feasible spaces of a tool axis are calculated which satisfy the constraints of the angular acceleration of the machine tool along a tool path, and a method is proposed to make the rotational coordinates change linearly. Finally, considering both the proposed tool axis planning method and the desired scallop height, tool axis vectors are determined and then compared with the results of a commercial software, which shows that the proposed method obtains linearly changing rotational coordinates along a tool path. The maximum angular acceleration of the rotational axis and the average of the scallop height of machined surfaces are reduced respectively to lower than 10% and by 22% of the commercial software. The machining stability and machined surface quality are also obviously improved.
LI Xiangyu , REN Junxue , LIANG Yongshou , TIAN Rongxin , LI Leidong . Tool Axis Planning for Five-axis Machining of Complex Channel Parts[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(9) : 2641 -2651 . DOI: 10.7527/S1000-6893.2013.0486
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