查詢結果分析
來源資料
相關文獻
- 搖動式放電加工參數自動設定系統
- 應用灰關聯分析在放電加工線切割法製程最佳化的研究
- 線切割放電加工精加工參數最佳化設定之研究
- 結合L18直交表與灰關聯分析運用於雕模放電加工製程參數最適化之研究
- 結合可行方向法與基因演算法於濾波器之最佳規劃
- Distributed Broadcasting Algorithms in Rotator Graphs
- 藉暫膠銅片保護carbon/epoxy改善電火花加工引發的切口熱傷害
- Machining Parameters Selection for Stock Removal Turning in Process Plans Using a Float Encoding Genetic Algorithm
- A Modified Multistart Method for Multimodal Optimization
- 線性軸幅路網接駁系統最適整合區位、路線與排班模式之研究
頁籤選單縮合
題 名 | 搖動式放電加工參數自動設定系統=Optimization of Machining Parameters of the Planetary EDM |
---|---|
作 者 | 廖運炫; 陳益原; | 書刊名 | 國立臺灣大學工程學刊 |
卷 期 | 79 2000.06[民89.06] |
頁 次 | 頁69-76 |
分類號 | 468.5 |
關鍵詞 | 放電加工; 最佳化; 可行方向法; Planetary EDM; Optimization; Feasible direction method; |
語 文 | 中文(Chinese) |
中文摘要 | 搖動放電加工 (planetary EDM) 是一種火花間隙補償技術,用來提高傳 統形雕放電加工 (die sinking EDM) 的金屬去除率及尺寸精度,並且降低加工成 本。此種加工所需設定的條件包含放電參數 (如電壓、電流等) 與搖動參數 (如 軌跡、速度等),由於加工參數眾多,且其對加工特性 (如金屬去除率、表面粗 糙度等) 的影響為非線性,所以,若欲使加工達到指定的精度與粗糙度且時間最 短,則參數的最佳化設定經常需要仰賴專家的經驗。有鑑於此,本研究發展出一 套搖動加工參數自動設定系統,只要輸入要求的尺寸大小和最後粗度值,此系統 即根據「粗糙度1/2遞減法則」、容許的電極消耗及要求的尺寸為限制,利用非 線性規劃的可行方向法 (feasible direction method),求出每道次加工參數的最佳 設定值,而且電極尺寸、消耗補償量與工件的裕留量也都可在規劃過程中一併決 定。這一套全方位的規劃法,最後以一個加工實例驗證,加工後的精度及粗糙度 均能合乎要求,而且加工時間比規劃前快25 ~ 30%。 |
英文摘要 | The planetary electrical discharge machining (EDM) is a sparking gap compensation technique used to increase machining rate and accuracy, and to reduce the cost of the traditional EDM. In practice it is difficult to set the optimal machining parameters because there are too many parameters involved in the process. An approach to determine machining parameters setting of the planetary EDM is presented. Experiments are conducted according to the Tauguchi quality design. From the analysis of variance, significant factors governing the important quantities of the process such as metal removal rate, wear ratio, etc. are retrieved. Their related mathematical models are then obtained by regression analysis. Finally, an optimization problem is postulated, and the optimum parameters are obtained by nonlinear programming �o feasible direction method. The proposed approach is very flexible, and it can be applied to any machining demand. It is confirmed from experiments that the predicted machining time is very close to that in actual machining. In addition, the demanded accuracy and surface roughness of the machined parts are obtained. |
本系統中英文摘要資訊取自各篇刊載內容。