隨著板金件大量使用在3C產品上，如何快速的完成板金樣品已成為板金加工的重要課題。板金樣品的製造過程中，以折彎製程的複雜度最高，且折彎順序的規劃會直接影響到板金樣品的品質，因此，本論文探討如何建立折彎順序規劃及折彎沖頭選擇的遵循法則，並將其運用在板金件快速打樣的過程，藉以縮短產品開發時間及降低製作費用。
在折彎順序規劃方面，本研究首先從板金件上選取一個適當的折彎面作為折彎基準面，再由基準面上折彎線間的夾角關係，將板金件劃分為數個折彎區域，接著針對每一個折彎區域進行折彎型式的比對，再將比對所得的所有折彎型式進行組合，即可獲得每一個折彎區域的折彎順序，最後將所有折彎區域進行折彎順序的排序，即可獲得整個板金件的折彎順序。在折彎沖頭的選擇方面，本研究首先組合每一道折彎製程的外形線，以求得板金件折彎的最終外形線，接著從折彎沖頭資料庫中，一一選取折彎沖頭，與折彎外形線進行干涉比對，即可找出最適合的折彎沖頭。
本篇論文除了提出板金件折彎順序規劃及折彎沖頭選取的法則外，並使用數個板金實例來驗證所提法則的正確性及可行性。相較於以往的相關研究文獻，本論文的特點在於所提的研究方法可適用於折彎次數眾多、折彎方向複雜的板金件，對於板金打樣時，折彎順序規劃時間的減少及折彎沖頭數量的降低都有相當大的幫助。

As sheet metal parts are widely adopted in the manufacturing of 3C products, how to achieve fast prototyping has become an important issue in sheet metal processing. The most complex process in sheet metal prototyping is the bending process, and the planning of its bending sequences directly impacts the feasibility of sheet metal prototyping. Therefore, this paper proposes a set of principles to be followed for the planning of bending sequences and selection of bending tools, and then applies them to the sheet metal prototyping process in order to shorten the time required for manufacturing and to reduce the cost.
To this end, we first selects a datum plane out of all the bending planes of the sheet metal, and then divides the sheet metal into various bending zones by using the angles formed between bending lines. Next, this study compares each bending zone with bending units to obtain the bending sequence for each bending zone. Lastly, the bending zones are sorted to obtain the final bending sequence. In order to select the bending tools, we combine the contours of each bending operation, choose appropriate bending punches from the bending-tool database, and then undertake an interference check with the bending contours.
This study not only proposes the principle of bending sequence planning for sheet metal, it also provides several examples to verify the accuracy and feasibility of the proposed principle. Compared to existing research literature, the key feature of this study is that the proposed research is applicable to sheet metal parts that have many bends, as well as complex bending directions.

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