Title page for 93323042


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Student Number 93323042
Author Chun-Yu Kuan(官君宇)
Author's Email Address 0953146588@yahoo.com.tw
Statistics This thesis had been viewed 2553 times. Download 757 times.
Department Mechanical Engineering
Year 2005
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title A Study on Micro Polishing by Abrasive Jet Technology
Date of Defense 2006-07-05
Page Count 109
Keyword
  • abrasive jet machining(AJM)
  • electrical discharge machining(EDM)
  • polishing
  • surface roughness
  • Taguchi Method
  • Abstract This research mainly constructs out an automatic abrasive jet system for micro polishing machining, and takes EDMed SKD61 surface as target of improving. The EDMed surface are investigated to improve the surface polishing effect by abrasive jet micro polishing machining (AJMPM) after processing.
    The study is divided into two major parts. First, the machining characteristic of AJMPM and the limit of system parameters will be discussed. Then, making use of Taguchi Method to obtain the optimization of manufacturing process parameters for surface roughness improvement and material removal weight on AJMPM. Second, the best combination of parameters is used to continue discussing the different of machining time, machining path, initial surface roughness, kinds of additive, abrasive mesh and kinds of abrasive in turn. Expecting that the EDMed surface can be improved like a mirror after AJMPM.
    From the experimental results find that using the best combination of parameters by Taguchi Method on automatic abrasive jet micro polishing system developed by myself, the surface roughness value can drop from 1.03 μmRa to 0.13 μmRa and 7.74 μmRmax to 0.90 μmRmax, the improvement rate up to 87% and the surface is similar to a reflection mirror. Furthermore, studies are also investigated the surface characteristic of workpiece after machining. From EDS quantitative analysis result reveal that using the SiC abrasive after AJMPM, the SiC content on workpiece surface is going to increase obviously and micro hardness of surface will also increase owing to the surface insertion effect (SiC particles).
    Table of Content 中 文 摘 要i
    英 文 摘 要ii
    謝 誌iii
    目 錄iv
    圖 目 錄vii
    表 目 錄xi
    第一章 緒論1
    1-1 研究背景1
    1-2 研究動機與目的2
    1-3 研究方法5
    1-4 論文架構5
    第二章 文獻回顧7
    2.1 放電製程改善探討7
    2.2 表面拋光改善探討8
    2.3 磨料噴射加工法探討9
    2.4 田口實驗計畫法探討11
    第三章 實驗原理與設備13
    3-1 放電加工法基本原理13
    3-1-1放電加工材料去除機制14
    3-2 磨料噴射加工法基本原理17
    3-2-1 磨料噴射加工材料移除機制18
    3-3 田口品質工程基本原理19
    3-3-1 變異數分析(ANOVA)及F檢定(F-test)23
    3.4 實驗設備26
    3-4-1 加工設備26
    3-4-2 量測觀察設備29
    3-5 實驗材料31
    3-5-1 實驗前置準備32
    3-6 實驗流程圖33
    第四章 自動磨料噴射精微拋光系統之建構34
    4-1 系統設計與建構34
    4-2系統性能與加工特性分析37
    4-2-1 系統入出口壓力差異37
    4-2-2 乾式與濕式加工對表面粗糙度之影響40
    4-2-3 磨料噴射精微拋光法應用於不同工件材質加工特性分析42
    4-2-4 不同加工高度對加工面積之影響44
    4-3 結論46
    第五章 磨料噴射精微拋光法應用於放電表面之改善47
    5-1 實驗條件與實驗規劃47
    5-1-1 研究內容49
    5-2 結果與討論50
    5-2-1 田口品質工程分析最佳參數組合50
    5-2-2 ANOVA分析56
    5-2-3 驗證實驗58
    5-2-4 磨料噴射加工參數對各品質特性之差異比較60
    5-3 結論69
    第六章 自動磨料噴射精微拋光效果之探討70
    6-1 加工時間對表面精微拋光之影響70
    6-2 加工路徑對表面精微拋光之影響73
    6-3 初始放電面對表面精微拋光之影響76
    6-4 添加劑種類對表面精微拋光之影響81
    6-5 磨料粒徑對表面精微拋光之影響86
    6-6 磨料種類對表面精微拋光之影響89
    6-7 表面特性探討93
    6-7-1 加工表面成分分析93
    6-7-2 微硬度試驗94
    6-7-3 腐蝕試驗與再鑄層觀察97
    6-7-4 磨料噴射加工法表面鏡面拋光結果98
    6-8 結論101
    第七章 總 結 論102
    參考文獻103
    英文文獻103
    中文文獻108
    個人簡歷109
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    Advisor
  • Biing-Hwa Yan(顏炳華)
  • Files
  • 93323042.pdf
  • approve in 1 year
    Date of Submission 2006-07-16

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