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Fatigue and Model Analysis of the CNC Cylindrical Grinder

By Lin Jui-Chang and Lin Cheng-Jen

Abstract

The purpose of this study is to lower deviation of workpiece by meeting high stability and rigidity to prevent the resonance in producing procedure of the CNC universal cylindrical grinding machine. Using finite element analysis software ABAQUS in grinder machine tools for numerical simulation of several analyses for the following: structural rigidity analysis, optimized design, vibration frequency analysis and fatigue damage analysis. This work aims on state of the transmission of outer diameter spindle to proceed in stress and fatigue life analysis by FE-SAFE Subroutine. The max values of equivalent stress and average amount of displacement in structural rigidity analysis are 0.67(Mpa) and 0.92(µm). Optimization design effectively reducing extreme value of stress, the largest decline of about 5.43%. Modal analysis compared with the experimental, the average error percentage was less than 10% of parts. The whole structure error does not exceed 3%. The fatigue life of approximately 1,193,988 times, estimates into real life time can use more than sixty years, from the viewpoint of structural strength, spindle has a good high breaking strength is designed to be safe

Topics: Engineering (General). Civil engineering (General), TA1-2040
Publisher: EDP Sciences
Year: 2016
DOI identifier: 10.1051/matecconf
OAI identifier: oai:doaj.org/article:3c9909589c6140c1ba99f7929f455ace
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