| 研究生: |
徐宏鈞 Shiu Hungjiun |
|---|---|
| 論文名稱: |
超塑成形模具輪廓設計對其成形厚度之影響 The Influence of Superplastic Forming Die Contour on Thickness Distribution |
| 指導教授: |
李雄
Shyong Lee |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 機械工程學系 Department of Mechanical Engineering |
| 論文出版年: | 2013 |
| 畢業學年度: | 101 |
| 語文別: | 中文 |
| 論文頁數: | 117 |
| 中文關鍵詞: | 超塑成形 、5083鋁合金 |
| 外文關鍵詞: | Superplastic forming, Aluminum 5083 |
| 相關次數: | 點閱:12 下載:0 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本研究是運用超塑成形技術(Superplastic Forming Technology)實驗製作(原始工件尺寸及縮小版)中型民航機機翼前緣(Leading Edge)之整流罩(Fairing Cover)、研究探討其成形方式(如熱引伸輔助超塑成形及直接超塑成形)與模具輪廓對於成形後厚度分布的影響。
在執行超塑成形之前,先將超塑鋁合金5083材料進行預折彎加工,在依其所需之氣壓-時間成形曲線來完成工件,預折彎之目的在於使鈑材在執行超塑成形之前,可預先縮短鈑片與成形模具之間的距離,使其工件成形後之厚度分布均勻性更佳。
探討成形距離之重要性後,決定於模具設計熱引伸輔助的加工程序或是改變模具的輪廓設計,來進一步縮短該成形距離,以期此工件可以有更佳的厚度分布均勻性。
This paper is using superplastic forming technology to produce (original size and small size) medium-sized civil aircraft wing leading edge fairing cover. To analyze the influence of forming method (hot draw mechanical pre-forming and conventional superplastic forming) and die contour on thickness distribution.
Before doing the superplastic forming, first, we pre-bend the 5083 aluminum , then make the component according to the required pressure - time forming curves. The purpose of the pre-bend is to shorten the distance between the sheet and the die before doing the superplastic forming, As a results, the thickness of the component will more uniform.
After realizing the importance of shorten the forming distance, we decide to add a hot drawing mechanical pre-forming or change the contour of the die to shorten the distance. We hope that the thickness of the component will more uniform.
參考文獻
【1】F. Yang and W. Yang, “Kinetics and size effect of grain rotations in nanocrystals with rounded triple junctions”, Scripta Materialia, pp. 919-922, (2009)
【2】J.W. Edington K.N. Melton and C.P. Cutler, “Progress International Materials Science”, Vol. 21, No.2, pp.61-158, (1976)
【3】張書省,“超塑性鋁合金5083 快速成形研究”, 國立中央大學機械工程研究所碩士論文, pp.5-26, (2000)
【4】SKY Aluminum CO.LTD, “Superplastic 5083 alloy ALNOVI-1”, pp.1-9,(1994)
【5】K.A. Padmanabhan and G.H. Davies, “Superplasticity Forming and Diffusion Bonding ”, Rockwell International Thousand Oads California,Seminar Course, pp.245-273, (1990)
【6】A.J. Barnes, “Superplastic Forming 40 Years and Still Growing”,Journal of Materials Engineering and Performance Volume 16 ”,pp.450 (2007)
【7】S. Kalpadjian, “Manufacturing Processes for Engineering Materials”,Chap7, pp.444-446(2003)
【8】C.H. Hamilton, “Vnited Stales Patent”, Vol3, pp.927&817
【9】Y. Luo, S.G. Luckey, P.A. Friedman, Y. Peng, “Development of an advanced superplastic forming process utilizing a mechanical pre-forming operation”, International Journal of Machine Tools & Manufacture, pp.1509–1518, (2008)
【10】Y. Luo, S.G. Luckey, W.B. Copple, and P.A. Friedman, “Comparison of Advanced SPF Die Technologiesin the Forming of a Production Panel”,Journal of Materials Engineering and Performance, pp.142–152, (2008)
【11】J. Liu, M.J. Tan, Y.A. Anders, E.W. Jarfors, K.S. Fong and S. Castagne,“Superplastic-like forming of non-superplastic AA5083 combined with mechanical pre-forming”, International Journal Advance Manufacture Technology”, pp.123–129, (2011)
【12】G. Luckey, P. Friedman, K. Weinmann, “Design and experimental validation of a two-stage superplastic forming die”, Journal of Materials Processing Technology, pp.2152–2160, (2009)