contributor author | Weiping Zhong | |
contributor author | S. Jack Hu | |
date accessioned | 2017-05-09T00:20:49Z | |
date available | 2017-05-09T00:20:49Z | |
date copyright | February, 2006 | |
date issued | 2006 | |
identifier issn | 1087-1357 | |
identifier other | JMSEFK-27914#213_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/134220 | |
description abstract | Fixtures are used to locate and constrain workpieces in machining. Fixture properties, such as accuracy and locator layout schemes, directly affect the resultant geometric variation on the machined workpiece surfaces. N-2-1 fixturing schemes (N>3) are often used for large or compliant workpieces in machining. However, the impact of N-2-1 fixturing on product geometric variation is not well understood because of the uncertainty of contact under the overconstraint condition. This paper presents a modeling methodology to study the machining geometric variation in a 4-2-1 fixturing scheme. The model integrates the fixture-workpiece interactions resulted from the rigid-body variation in fixtures, workpieces, and machine tools, and the static deformation under external forces. The uncertainty of the fixture-workpiece contact condition due to the 4-2-1 constraint condition is modeled using the minimum potential energy theory. A numerical example of face milling is presented to demonstrate the methodology. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Modeling Machining Geometric Variation in a N-2-1 Fixturing Scheme | |
type | Journal Paper | |
journal volume | 128 | |
journal issue | 1 | |
journal title | Journal of Manufacturing Science and Engineering | |
identifier doi | 10.1115/1.2114927 | |
journal fristpage | 213 | |
journal lastpage | 219 | |
identifier eissn | 1528-8935 | |
keywords | Machining | |
keywords | Fixturing | |
keywords | Modeling | |
keywords | Jigs and fixtures | |
keywords | Deformation AND Force | |
tree | Journal of Manufacturing Science and Engineering:;2006:;volume( 128 ):;issue: 001 | |
contenttype | Fulltext | |