A unified geometric modeling method of process surface for precision machining of thin-walled parts

Ying Zhang, Dinghua Zhang, Baohai Wu, Jianhua Yang

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Thin-walled parts are widely used in aerospace, ships and automotive fields. However, due to the characteristics of multi-process and multi-procedure manufacturing technology, the production efficiency and machining precision of those parts are greatly limited. In this paper, a unified geometric modeling method for precision machining of thin-walled parts is presented. The unified model is established to represent the polymorphism of process surface for every stage in the whole machining process. Then with four variables, including design surface model, process surface model, offset transform and localization transform as well as the interactions among them, different application problems are described, which reveal the common mathematical essence. Firstly, for the process design of thin-walled parts, nonuniform allowance optimization design method is proposed based on the stable process stiffness. Secondly, for the rapid clamping and localization of thin-walled parts, a method of alignment localization with constraints and allowance optimization is presented for the near-shape blank. Thirdly, for the machining process controlling of thin-walled parts, a modeling and compensation method of elastic deformation error is developed in the multi-axis NC machining. Finally, several examples show that the geometric modeling method is feasible and the results can carry high precision and efficiency for thin-walled parts.

源语言英语
主期刊名Proceedings - 2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013
285-287
页数3
DOI
出版状态已出版 - 2013
活动2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013 - Xi'an, 中国
期限: 30 7月 20132 8月 2013

出版系列

姓名Proceedings - 2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013

会议

会议2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013
国家/地区中国
Xi'an
时期30/07/132/08/13

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