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https://doi.org/10.1016/0890-6955(94)90085-x
Copy DOIPublication Date: May 1, 1994 | |
Citations: 13 |
Filamentary brushes are used widely for both manual and automated deburring and surface finishing operations. However, insufficient information is available to manufacturing engineers concerning guidelines for the selection, use, and anticipated performance of such tools. In this paper, a formulation for the quasi-static, finite displacement mechanics analysis of constrained filament deformation is developed which includes frictional forces generated at the interface of the brush/workpart system. The constrained path along which the filament tip traverses corresponds to a workpart surface having variable curvature. The problem is formulated in terms of curvilinear coordinates, which facilitate the development of a filament-tip “kinematic trace”. The kinematic trace, in turn, provides a rational basis for evaluating the approximate final position for filament/workpart contact. For illustrative purposes, the results for filament force, overall brush force and brush torque are reported in non-dimensional form for several different constant workpart curvatures and friction coefficients. Additionally, discussion is provided concerning the relationship between the friction coefficient used in this study, and the actual filament machining forces that are generated during the material removal process.
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