Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2837
標題: 外掛式車刀減振器之設計探討
Design of an Additional Absorber for Turning Tool
作者: 張中如
Chang, Chung-Ju
關鍵字: 顫振;Chatter;減振器;車削;Absorber;Turning
出版社: 機械工程學系所
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摘要: 
在追求材料移除率而提升切削深度時,常會發生顫振,顫振不僅會破壞工件的表面精度與幾何精度,甚至會破壞刀具、主軸、軸承等重要零組件,所以必須加以預防或抑止。針對這問題,本研究設計一減振器提升刀具的動態特性。
本研究首先藉由文獻探討切削振動之成因,並比較各種減振器的優缺點作為設計依據。接著利用運動方程式推導,得知設計時要注意的參數。再建立模型進行有限元素分析,分析減振器對刀具動態性能的改善。最後製作實體進行切削實驗。
實驗結果顯示,本研究所設計之減振器能提升普通刀具的極限切深50%~160%不等,並在顫振發生時有效緩減或抵消顫振造成的表面波紋,提昇表面精度。

Chatter often occurs when the depth of cut is increased. Chatter not only damages the accuracy of the workpiece surface and geometric, but also destroys the tool, spindle, bearings and other key components. It must be prevented or avoided. For these problems, this study designs an additional absorber to increase the dynamic characteristics of turning tool.
First, this study investigates the causes of chatter and compares the advantages of various absorbers from documents. Then from the equation of motion, the important parameters are known. The finite element method is used to analysis the additional absorber. Finally, some experiments are made to compare the surface quality when machining with and without the absorber.
Experimental results show that the additional absorber can increase the limits depth of cut ranging from 50% to 160%, and improve surface accuracy.
URI: http://hdl.handle.net/11455/2837
其他識別: U0005-1908201305524700
Appears in Collections:機械工程學系所

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