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Title: Development of robust fixture locating layout for machining workpieces
Authors: Fan, L. 
Senthil Kumar, A. 
Keywords: fixture analysis
fixture design
robust design
Taguchi method
Issue Date: 1-Dec-2010
Citation: Fan, L., Senthil Kumar, A. (2010-12-01). Development of robust fixture locating layout for machining workpieces. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 224 (12) : 1792-1803. ScholarBank@NUS Repository.
Abstract: A fixture is a device that secures and holds a workpiece to maintain its orientation and position during a manufacturing process, so that the desired workpiece quality can be achieved. Although many researchers have worked on locating accuracy analysis and tolerance analysis towards the automated generation of locating schemes for fixtures, most of them have focused on part localization, while feature errors due to geometrical inaccuracies and dimensional deviations during the mass production are usually neglected. In the current paper, a study on fixture locating layout is carried out with the robust design approach by combining the Taguchi method and the Monte-Carlo statistical method in order to increase the quality of final machining workpieces, so that the layout can be robust and insensitive to the errors. The Taguchi method is employed to study the locating effect of the locator's position at different levels and the Monte-Carlo method is applied to simulate the variation of coordinates of the locating contact points. A case study comprising drilling a hole on a prismatic workpiece is also carried out. The paper shows that the errors on the locators and workpiece have significant effects on the features to be machined and thus these variations should not be ignored.
Source Title: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
ISSN: 09544054
DOI: 10.1243/09544054JEM1686
Appears in Collections:Staff Publications

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