第五章 結論與未來工作
5.2 未來工作
應力值會下降,但下降量並不明顯。當厚度增加至一定程度後對 液壓膨脹實驗結果影響並不大,但在較薄的厚度時如 0.1mm 與 0.2mm 卻有明顯的不同。因此後續也將針對不銹鋼 304 之金屬薄 板,改變其厚度進行液壓膨脹實驗,瞭解其薄板厚度與液壓膨脹 實驗之影響。
圖 5.1 CuZn36 薄板,不同厚度尺寸(t0)[23]
(4) 應力-應變曲線之可用範圍:
後續也將利用本研究的整合材料實驗設備,針對不同材料的金屬 薄板進行實驗,瞭解其完整的材料性質,建構一金屬薄板材料性質之 資料庫。本研究現階段已針對不銹鋼 316L,使用本研究之設備進行 一初步的材料實驗,詳細的實驗結果與材料性質參照附錄 C。
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附錄 A 夾具系統之設計規格圖
圖 A.1 支架部件:電阻尺支架組件
圖 A.2 支架部件:電路板支架組件與試片座支架組件
圖 A.3 總底座部件
圖 A.4 試片座部件
附錄 B 模具組之設計規格圖
圖 B.1 圓形模具
圖 B.2 橢圓形模具
圖 B.3 小徑之圓形模具
附錄 C 不銹鋼薄板 316L 之完整材料性質
C.1 液壓膨脹實驗
使用材料為不銹鋼薄板 316L,厚度為 0.12mm,面積 100*100mm 的方形試片,實驗後之試片為圖 C.1,實驗結果之應力-應變曲線如圖 C.2 所示。
圖 C.1 液壓膨脹實驗後之試片(SUS316L)
圖 C.2 液壓膨脹實驗之結果(SUS316L)
C.2 金屬薄板之方向性
本實驗的材料是使用厚度 0.12mm、面積 100mm*100mm 的不銹 鋼板 316L。拉伸實驗之試片尺寸參考 ASTM-E8 之拉伸規範決定拉伸 試片尺寸如圖 3.17 所示。另外,考慮不銹鋼薄板的方向性,因此於 同一片薄板上切割了三種方向的拉伸試片,由滾軋方向為基準,做 0 度、45 度與 90 度三種方向的拉伸試片,進行單軸拉伸實驗。實驗後 之試片如圖 C.3 所示,實驗結果如圖 C.4 所示。 由圖 c.4 中可以發現 三個方向之應力-應變曲線有相當的一致性,因此可以確定不銹鋼 316L 並無明顯之方向性。
圖 C.3 單軸拉伸後之試片(SUS316L)
圖 C.4 單軸拉伸實驗之結果(SUS316L)