English  |  正體中文  |  简体中文  |  Items with full text/Total items : 69561/69561 (100%)
Visitors : 23023566      Online Users : 421
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/72455

    Title: 超音波對1070鋁合金等通道彎角擠製加工及其材料行為效應之研究
    Authors: 陳郁輔;Chen,Yuh-Fu
    Contributors: 機械工程學系
    Keywords: 超音波;等通道彎角擠製
    Date: 2016-08-23
    Issue Date: 2016-10-13 14:56:48 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本文以實驗方式探討超音波振動輔助對於等通道彎角擠製(ECAE)之影響。本文超音波加載方式分為軸向加載、橫向加載及組合雙軸向加載,以最大成形力、成形總能量及平均成形力三個觀點比較不同沖頭行程位置加載超音波振動的影響。
    ;This study aims to explore experimentally the influence of ultrasonic vibration on equal channel angular extrusion (ECAE).The ultrasonic system divided in axial direction, lateral direction and both two direction. Use the maximum forming force, maximum total energy and average forming force to compare the effects of ultrasonic vibration.
    In this paper, applying ultrasonic vibration in tensile test. Establish material plastic stress - strain relationship with ultrasonic vibration. Also in Deform-3D finite element software to analyze the equal channel angular extrusion(ECAE) that applied with the ultrasonic vibration.
    The experimental results shows that ultrasonic vibration on ECAE, whether in axial direction, lateral direction or simultaneous biaxial loading, for lower forming force and enhance the hardness of the specimen both have good effect. Using the finite element to analyze, adjust the contact conditions and material properties of finite element model to build the equivalent model. Putting forward the acoustic softening and friction reduction are both may exist in process of ultrasonic vibration on ECAE.
    Appears in Collections:[機械工程研究所] 博碩士論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明