When using traditional subtractive machining method, the tool can not reach somewhere for some com-plex parts such as engine impellers, blisks. The machining process would be hard. Additive-subtractive hybrid machining method can be used to machine before obstacles formed, which is an effective way to machine complex parts. Therefore, a hybrid manufacturing process planning algorithm should be researched. In order to validate the feasibility of the algorithm, an additive-subtractive-integrated hybrid manufacturing validation platform based on 5+1 axes is built in this paper. A small engraving machine is used as the base of the platform. X, Y, Z are three translational axes and B, C in the cradle platform are rotation axes, which construct the five-axis system. An additional axis controls feeding of 3D printing extruder. A mechani-cal device is designed, in which a guide mechanism is used to integrate 3D printing extruder and spindle of the engraving machine. Mach3 six-axis CNC system is used to control the movement of each axis. By this way, an additive-subtractive-integrated hybrid manufacturing process can be realized.%叶轮、整体叶盘等航空发动机结构件的外形复杂、精度要求高,对传统加工方法提出了很大的挑战.增减材混合加工融合增材加工和减材加工的优势,是解决复杂结构零件加工的一种有效手段.为了验证混合加工工艺规划算法的可行性,搭建了基于5+1轴的增减材混合加工算法验证平台,以小型雕刻机为基体,以X、Y、Z为3个平动轴,以B、C摇篮摆为转动轴,实现五轴联动,附加一轴控制挤出机喷嘴送料,设计了机械装置.使用导轨机构将3D打印挤出机与雕刻机加工主轴集成为一体,减少了混合加工增减材加工操作切换时间,提高了混合加工效率,并使用Mach3六轴数控系统控制各轴运动,可完成增减材混合加工过程,实现了对混合加工工艺规划算法的验证.
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