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題 名 | 壓粉成形及燒結收縮的有限單元解析法=Simulation of Powder Forming and Sinter-shrinkage by Using Finite-Element Method |
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作 者 | 詹福賜; 洪良德; 楊棟賢; | 書刊名 | 鍛造 |
卷 期 | 8:4 1999.12[民88.12] |
頁 次 | 頁41-45 |
分類號 | 472 |
關鍵詞 | 還原鐵粉; 壓粉成形; 燒結收縮; 多孔質材料; 相對密度; Iron powder; Powder forming; Sinter-shrinkage; Porous metals; Relative density; |
語 文 | 中文(Chinese) |
中文摘要 | 插文中以還原鐵粉為對象進行壓粉成形及燒結收縮的 FEM 解析及實驗,壓粉成形 解析時以大矢根所提出的多孔質材料的塑性式為基礎,以微小變形理論定式化,變形時考慮 材料的密度變化。燒結收縮解析時利用壓粉成形解析之密度分布計算結果,把收縮量當作塑 性變形量來解析,並透過實驗過程求得燒結收縮量與相對密度的關係。解析時以最簡單形狀 (圓柱形)的壓粉成形及燒結收縮為例進行計算及實驗,結果顯示計算值非常接近實驗值。 |
英文摘要 | Simulation of powder forming and sinter-shrinkage by using Finite-Element Method. In the simulation of powder forming the theory of plasticity for porous metals that proposed by Oyane was used. The change in density during deformation is treated by the theory for porous metals. Because sinter-shrinkage increases with decreasing relative density. "Therefore, in the simulation of sinter-shrinkage, the results of density distribution of the powder forming simulations are used for calculating the distribution of shrinkage. The shrinkage is treated as simulation of plastic deformations. Cylindrical iron powder compaction is chosen as an example of the simulation and the experiment. The results showed that the simulations are closed to the experiments. |
本系統中英文摘要資訊取自各篇刊載內容。