کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
792026 902001 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An adaptive FEA method to predict surface quality in hard machining
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
An adaptive FEA method to predict surface quality in hard machining
چکیده انگلیسی

A significant problem of studying surface integrity using FEA simulation is the severe element distortions on the machined surface. The severe distortions raise significant numerical problems in performing a simulation and analyzing surface integrity. In this study, adaptive meshing techniques of initial angle control (IAC) and mesh constraint control (MCC) were exploited to improve mesh quality of the machined surface. Simulations with and without adaptive meshing and different adaptive techniques were conducted and compared to evaluate their effectiveness on surface mesh quality. The simulation results have shown that the use of adaptive mesh in metal cutting simulations improves the stability of saw-tooth chip formation. Adaptive mesh can significantly mitigate element distortions, stresses, strains, and temperatures in the subsurface and therefore improve mesh quality. IAC and MCC adaptive meshing at high frequency give similar results which are consistent with experimental observations, while a low adaptive frequency tends to give deviated results. The importance of using adaptive mesh has been demonstrated if surface integrity is considered.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 173, Issue 1, 30 March 2006, Pages 21–28
نویسندگان
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