Abstract
AbstractA new method used to evaluate the performance of the lathe tool is proposed and optimal thickness of the damping layer is obtained through optimization analysis. FEA model is built as well to verify its feasibility. A serial of experiments are conducted, from the aspects of power spectrum, cutting force, surface smoothness and fatigue, to study the characteristic of lathe tool with high damping alloy layer. It could be seen that the new proposed performance evaluating method is acceptable and verified by FEA and experimental study, and two kinds of physical lathe tools are made according to optimization study. Power spectrum and cutting reaction force of two types of lathe tool under different working conditions are completed and the results shows that the damping tool’s peak value of the spectrum and cutting force is at least 20% lower than that of the tool without damping layer, and this is also matched well with the transient dynamic study based on the FEA. The experiments for surface smoothness and fatigue life are conducted under the same working condition, and it could be found that lathe tool with high damping alloy layer could improve the surface smoothness and fatigue life dramatically.KeywordsDynamic responseHigh damping alloyLathe toolSurface smoothnessFatigue life
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