撓性成形製程有下列優點：只需要製造一個金屬模具，更換模具即可改變製品形狀，撓性介質與金屬模具不需要精密的對位，高的表面品質。因此，對於成形製程而言可以大大地減少所需的加工時間與成本。
本文主要探討AISI 304不鏽鋼薄板微流道的撓性成形製程之可行性。對於單流道的製造目前有不同兩種加工方式，分別是凹模與凸模，藉由實驗的方法針對兩種類型的變形特性進行分析。使用兩種不同流道形狀之設計，包括了四直槽型與交叉型，進行成形實驗，比較微流道各個流道的成形深度狀況。使用不同硬度的撓性介質進行實驗，研究其微成形製程狀況。
本研究發現撓性成形製程之凸模成形方式比凹模成形方式更容易成形，且成形後四直槽型與交叉型之各個流道的深度分佈並不相同。不論以凹模、凸模或金屬沖頭與金屬母模的方式成形，微流道的成形厚度之分佈皆不均勻，微流道成形的側壁都會有變薄現象。同材質不同硬度的TPU撓性介質其硬度愈小則成形負荷愈大。期盼此研究之成果，能作為日後在撓性成形之研究參考。

The flexible forming process has the following advantages: only one rigid die must be manufactured, the product shape can be changed easily by changing the die, flexible medium and rigid die do not need to be assembled precisely, and high surface quality. Therefore, the time and cost required for forming process can be greatly reduced.
This study investigated the feasibility of AISI 304 thin stainless steel sheet for micro-channel under flexible forming process. For the fabrication of a single channel, there were two different deformation styles: concave and convex. The deformation characteristics of the two deformation styles were analyzed with experimental method. Two different flow channel designs including both four parallel flow channel and interdigitated flow channel were presented in this study to compare the depth of forming of the micro-channel. The flexible mediums of different hardness were used in the experiment to study the micro-forming process.
It can be found that the convex deformation style has better formability in flexible forming process. Both Four parallel flow channel and interdigitated flow channel have different depth in each channel after forming. The thickness distribution of the formed micro-channel is uneven, and the most dangerous position occurs at the side of the micro-channel. The punch load increases with decreasing hardness in TPU(flexible medium). This will serve as reference for further research on flexible forming process.

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