Dimensional errors of fixtures, locating and measurement datum features in the stream of variation modeling in machining

被引:48
作者
Djurdjanovic, D [1 ]
Ni, J [1 ]
机构
[1] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
来源
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME | 2003年 / 125卷 / 04期
关键词
D O I
10.1115/1.1621424
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Machining processes are usually multi-station processes involving a large number ofoperations and several locating datum changes. Machining errors are thus introduced, transformed and accumulated as the workpiece is being machined. This paper introduces procedures for expressing the influence of errors in fixtures, locating datum features and measurement datum features on dimensional errors in machining. These procedures are essential in the derivation of the Stream of Variation model of dimensional machining errors using the CAD/CAPP parameters of the machining process. The linear state space form of the Stream of Variation model allows for advanced control theory achievements to be employed in formal solutions to problems in multi-station machining. Modeling procedures presented in this paper were experimentally verified in machining of an automotive cylinder head.
引用
收藏
页码:716 / 730
页数:15
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