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  • 學位論文

汽車鈑金模面設計與建構工具

Die Face Design and Construction Tools for Automobile Sheet Metal

指導教授 : 尤春風

摘要


國內汽車鈑金開發過程中,生產汽車鈑金零件的品質已具有相當水準,但使用電腦輔助設計中,模面設計始終存在著開發時程過長的問題。原因為開發過程中皆以傳統曲面的方式建構,模面設計皆是以自身的經驗與試誤法(trial and error)進行開發,因此加速開發時程,成為各大鈑金廠的重要課題。 本文研究分兩部分,為模面設計與模面建構工具。一般模面設計文獻上大多敘述引伸工程之參數,考慮全工程設計較少,如剪切、整型工程。本文透過廠商資料和文獻記載,歸納整體汽車鈑金模面設計重點。 在建構部分,本文以本實驗室CAD軟體SpringSolid做為開發平台,以Java程式語言進行開發。本文與現有軟體開發工具做為比對,如UG、Dynavista、PAM-STAMP。 現有餘肉造型工具以手動輸入單一斷面線為主,如Dynavista,本文提出自動化建構餘肉造型線架構,線架構根據剪切工程調整參數,並使用導引線調整外型美觀,降低建構曲面使用試誤法之次數。在剪切線計算上,本文針對幾何複雜造型進一步探討,並提出適當解決方法,並以Dynavista作為比較。

並列摘要


Current the die face design are based on the expert experiences and trial and error method. The process time may be long, so that less competition on the market. Therefore, speeding up the development time for the die face design is a crucial issue for the car industry. This research is divided into two sections, the design principles and construction tools for the die face. Narrative parameters of the die face design of the drawing mold are mostly considered on the general literature reviews, but die face design on the full mould is less consideration, such as trimming, restriking mould. This article summarized all design principles of the die face design from the manufacturing factorys and literatures. On the construction tools of the die face, the software Spring Solid CAD system is used for the developing platform which is written by Java language. In this paper, some existed software systems such as UG, Dynavista, PAM-STAMP, are used for comparisons. This paper proposes the automatic construction wireframes for the addendum design instead of manually input a single section of the existed addendum modeling tools, such as the Dynavista. Trimming mould is considered for the construction of section profile for the addendum designs, and the guide curves is also used for the adjustment of the appearance of the die face in order to reduce the building time of the trial and error method. The paper proposes the calculation of the trimming contour for the complex geometric shapes and gives some comparisons with the software system Dynavista.

參考文獻


[11] 劉昆育,“汽車鈑金衝壓模具設計之鈑金製程規劃”,國立台灣大學機械工程研究所碩士論文,2010
[12] 宋祐禎,“汽車鈑金模面建構的二次開發”,國立台灣大學機械工程研究所碩士論文,2008
[13] 林振陽,“汽車鈑金沖壓模具設計之知識工程”,國立台灣大學機械工程研究所碩士論文,2009
[14] 陳明志,“汽車引擎蓋板之沖壓成形模面設計”,國立台灣大學機械工程研究所碩士論文,2010
[1] Ciurana, J., Ferrer, I., and Gao, J. X., “Activity model and computer aided system for defining sheet metal process planning”, Journal of Materials Processing Technology, vol. 173, 2006, pp. 213-222.

被引用紀錄


李孟貞(2012)。三角網格調整與曲面重建應用於汽車鈑金模面之回彈補正〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2012.02784
陳泓均(2012)。曲面嵌合應用於汽車鈑金回彈補正〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2012.01288

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