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论文类型： 期刊论文

发表时间： 2018-01-01

发表刊物： MATERIALS AND MANUFACTURING PROCESSES

收录刊物： SCIE、EI

卷号： 33

期号： 9

页面范围： 996-1002

ISSN号： 1042-6914

关键字： Aircraft; deformation; distribution; location; milling; optimization; skin; support

摘要： Mirror milling is a new efficient and green technology of aircraft skin processing. Currently, the support head of mirror milling system is mostly a metallic sphere and the support area is smaller than the milling area, which results in the deformation error of workpiece. To solve this problem, a new multipoint support device is proposed. The purpose of this research is to optimize the support location of multipoint support in mirror milling of aircraft skin parts. The simulation and experimental studies indicate that the deformation of workpiece is reduced by increasing the support points. To obtain the good thickness consistency of workpiece, the distribution of the support points should make the rigidity distribution of the workpiece consistent with the change of milling force, not as close as the milling trajectory. The workpiece deformation error can be reduced only by changing the support locations.