Measured data-driven shape-adaptive machining via spatial deformation of tool cutter positions
Measured data-driven shape-adaptive machining via spatial deformation of tool cutter positions
复制标题
通过刀具位置的空间变形进行测量数据驱动的形状自适应加工
DOI:
10.1016/j.measurement.2018.11.051
复制
发表时间:
2019-03
期刊:
影响因子:
5.6
通讯作者:
Jiuhua Xu
中科院分区:
文献类型:
--
作者:
Zhengcai Zhao;Dawei Ding;Yucan Fu;Jiuhua Xu
Hybrid machining processes have great advantages on enhancing the machining efficiency and accuracy of complex structural parts. Adaptive machining can answer the transition challenges of poor shape accuracy and bad dimensional consistency in hybrid machining processes. A novel shape-adaptive machining approach via direct spatial deformation of template tool cutter positions is developed, which can solve the problems efficiently and quickly. The framework for shape-adaptive approach is illustrated, in which on-machine measurement, globally spatial deformation and locally spatial deformation are involved. The details of on-machine measurement using a touching probe are present. A volume-based free-form deformation method was used to deform the template tool cutter positions globally. A 3rd-degree Bézier surface is built on which the tool cutter positions were locally projected. Finally, a case study of adaptive machining turbine blade was carried out, the results of which validate the feasibility of proposed measured-driven shape-adaptive machining approach.
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