https://scholars.lib.ntu.edu.tw/handle/123456789/62813
標題: | 內含功能性嵌入件之快速原型製程研究 | 作者: | 陳孟宗 | 關鍵字: | 快速原型;嵌入件;線上自動撥料;Rapid Prototyping;Insert;Online de-cubing | 公開日期: | 2004 | 摘要: | 摘 要 快速原型技術的發展降低產品開發時程與開模製作可能發生之錯誤,使得產品競爭力提高與成本降低之効。但如何跳脫以往只限於外觀參考,朝向於製作功能件(Functional)、組合件(Assembly)、嵌入件(Insert)或是具有多種材質梯度(Multi-Material) 之原型,乃目前快速原型技術的重要研究方向。 目前許多不同快速原型技術,對於嵌入件之線上製程技術多有所發展,但由於各個系統均有其先天上之缺點或限制,因此缺乏一有系統之嵌入件製作流程,能夠符合大多數快速原型技術。 本研究針對內含功能性元件(如常見之機械元件,如馬達、軸承或軸心等等)之快速原型製作,提出一製作流程與一嵌入件形狀之拆解分類法則。此法則利用原型建構方向之向量與嵌入件表面法向量,相互內積後產生之結果作為判斷基礎,以此基礎可將嵌入件分為三大類,分別為:可直接嵌入、需形狀轉換模,以及需形狀轉換模且轉換模需分割。依照分類後結果,便可利用快速原型技術,將各種分類之原型外框或形狀轉換模製造完成,並在線上完成嵌入與組合,再依照規劃流程之步驟至完成整個原型。此外利用新式線上自動撥料製程具有線上立即撥除廢料,以及製作中空件造型能力的優點,作為實驗驗證的平台,證明此流程與法則之可行性,並同時增廣固態類薄片基層快速原型之運用領域。 (關鍵字:快速原型、嵌入件、多種材質梯度、線上自動撥料) Abstract Rapid Prototyping (RP) technology has great influences on the nowadays development of commercial products because the prototypes can be manufactured without jigs, fixture and molds. However, the RP systems have been applied mainly for the making of mono-function models up to date. The purpose of this thesis is to study the process of making functional inserts embedded RP parts. A generalized procedure and its associated insert classification method for easy inserting functional parts into a RP product on-line are proposed. Based on this method, most of the axis-symmetric functional inserts are classified into three groups according to their shapes and orientations in the RP part, namely if they can be inserted directly, a shape converter is needed, or a two-pieces shape converter is needed. The insert or insert embedded shaped converter if a shape converter is required is then placed in the RP cases manufactured in advance. Thereafter, laminating process is proceeded until a complete RP part is finished without any interference. The proposed procedure and insert classification method are verified via the new on-line de-cubing laminated object manufacturing (LOM) process. Three cases studies were considered, and experiments were conducted. Results show that the RP parts with insert or functional insert are made successfully. (Keywords:Rapid Prototyping, Insert, Online De-cubing) |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/61385 | 其他識別: | zh-TW |
顯示於: | 機械工程學系 |
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