针对广泛应用于航空航天制造业中的整体薄壁结构件刚性差、易产生加工变形,从而难以保证其加工品质的问题,基于金属切削原理的物理仿真,采用Production Module 3D仿真软件对工件的加工变形进行数值模拟,并与相同条件下的试验数据进行了对比验证,仿真结果与试验数据基本相符.在验证了仿真模型的有效性前提下,研究了走刀路径、切削用量和刀具结构参数对薄壁零件加工变形的影响,获得了其加工变形的规律.所做研究为通过改善加工工艺、优化切削参数和优选刀具来控制加工变形提供了理论依据.%At present,monolithic aero-thin-walled components are widely used in aerospace manufacturing industry.but their rigidity is low and it is liable to be distorted during the machining process,so that it difficult to guarantee their machining quality.In view of the problem,the machining distortion of aero-thin-walled part is simulated by employing software Production Module 3D and based on the physical simulation of metal cutting principle.The results of simulation are met well with the experimental results.This paper researches on the influence of the feed path cutting parameters and tool parameters on the machining distortion and comes to the conclusion.It could provide good references for controlling machining distortion through improving processing,optimizing cuffing parameters and selecting tools.
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