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| 題名: | 使用反應曲面法於V 型彎曲過程中實驗設計與性能分析
Experimental design and performance analysis of the V-diebending process using the Response Surface Methodology |
| 作者: | 邱俊欽 |
| 貢獻者: | 精密機械與製造科技研究所 |
| 關鍵詞: | 性能
回彈
彎曲過程
反應曲面法 |
| 日期: | 2010-07
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| 上傳時間: | 2011-05-23T07:03:47Z
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| 摘要: | 本文使用反應曲面法於 V 型彎曲過程中進行實驗設計與性能分析。並針對其設計參數如衝頭半徑、模具 V 槽寬度、模具彎角半徑與試件厚度等對其回彈角度與彎曲後厚度變化的彎曲特徵之影響加以探討。採用反應曲面法之中央組合轉動設計法作為本文實驗設計之用。經由變異數分析與實驗驗證後，本文所提出二階數學模式是非常適合於解釋與分析其設計參數對彎曲特徵之影響，而其獲得預測值也非常接近實驗值，且在95%信心指數範圍內。經由反應曲面
法之二階模式與連續近似最佳化法來獲得其設計參數之最佳值設定。其結果顯示為其模具 V槽寬度、模具彎角半徑與試件厚度等設計參數對於彎曲特徵評估上是顯著性因子，也是在提升其品質上重要的參數。經由實驗證實本文所提出其設計參數之最佳設定於 V 型彎曲過程中對於其彎曲特徵評估將有很大的改善。
In this study, an effective procedure of response surface methodology (RSM) was utilized for experimental design and performance analysis of the V-die bending process. The punch radius, die width, die corner radius and blank thickness were selected as effective processing parameters to investigate the influences on the performance of spring-back angle and thickness variation in the bending process. A standard RSM design called the centered composite rotatable design (CCRD) was applied in this experimental plan. Based on the analysis of variance and verification experiments, the quadratic models proposed in this paper were adequate to explain and analysis the effects of processing parameters, and can be utilized to predict the experimental value within the 95% accurate interval. The optimal conditions were also determined using the proposed quadratic model and the sequential approximation optimization method (SAO). Results show that the significant factors on the bending performance evaluations are the die corner radius, die width and blank thickness, which are noticeable variable factors as the resources of increasing quality. The experimental results using the optimal setting were easily clarified that the effective procedure proposed in this study greatly improved the desired target of performance analysis in the V-die bending process. |
| 描述: | 指導教授：江可達 |
| 顯示於類別: | [機械工程系(含精密機械與製造科技碩士班)] 學位論文
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