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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/13845

Title: 超音波輔助撓性夾具車削加工性能之影響研究
Study of the effect of ultrasonic-assisted turning by using a flexible fixture
Authors: Che-Fan Chou
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
Keywords: 撓性夾具;振動切削加工
flexible fixture;vibratory cutting machining
Date: 2009
Issue Date: 2011-06-30T07:28:49Z
Abstract: 本論文之主旨在於應用超音波輔助撓性夾具車削。首先利用電腦輔助設計和有限元素法進行模擬分析,設計完成後以線切加工製作尺寸精度高之撓性刀具座,再設計一平台固定刀具座並連結超音波振盪器來達到撓性振動切削的效果。 車削實驗結果顯示,加入振動之撓性刀具座除了進給0.04mm/rev以下,其餘切削條件皆優於剛性車削。粗糙度改善率隨著進給增加平均可達8.29%,最高可達27.35%;進給切削力改善率平均為23.4%,最高可達73%;垂直切削力改善率平均為28%,最高可達55.6%。
The purpose of this thesis is to develop the effect of ultrasonic-assited turing by using a flexible fixture to the machining of aluminum alloys compared with traditional fixture. At first , the computer-aided design and finite element method is used to analyze it’s structural property. Second, we use electric discharge wire-cut machining to make high-precision flexible fixture. Finally, we design the plane for turning by using flexible fixture which is connect with an oscillator for the purpose of vibratory machining. The experiment results show the surface roughness of workpiece is improved by using ultrasonic-assited flexible fixture except when the feed is less than 0.04mm/rev;the horizontal force and the vertical force reduce averagely 28% and 23.4%,respectively.
URI: http://ethesys.lib.ntou.edu.tw/cdrfb3/record/#G0M96720020
Appears in Collections:[機械與機電工程學系] 博碩士論文

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