查詢結果分析
來源資料
頁籤選單縮合
題名 | CPU散熱片擠製加工之模流分析與模具設計=Analysis of Plastic Flow within the Die and Die Design during Extrusion for CPU Heat Sinks |
---|---|
作者姓名(中文) | 黃永茂; 沈駿彥; | 書刊名 | 鍛造 |
卷期 | 16:4 2007.12[民96.12] |
頁次 | 頁45-53 |
分類號 | 472.22 |
關鍵詞 | CPU散熱片; 擠製加工; 模流分析; 模具設計; |
語文 | 中文(Chinese) |
中文摘要 | 隨著個人電腦運算速度的提高,CPU散熱片散熱效率的要求亦隨之提高。近年來CPU散熱片的製造技術已受到高度重視,且在開發高效能CPU的同時,CPU散熱片的製造技術儼然成為一種不可或缺的技術。本文針對應用於CPU散熱片製造的擠製加工法提出導流板與模具的設計準則。以有限元素分析軟體DEFORM 3D來分析胚料在模穴中的塑性流動形態,探討擠製加工時的擠製力及產品的彎曲曲率,並以田口法找出其最佳設計參數。另外,亦利用有限元素分析軟體DEFORM 3D中的Die Stress Analysis模組,來模擬CPU散熱片擠製模具在擠製加工時所受的應力、應變、及位移等。最後以鋁6061進行熱間擠製實驗,由實驗結果與解析結果之比較,來驗證解析模式的適用性。 |
英文摘要 | CPU heat sinks with high efficiency of heat transfer are greatly demanded for a personal computer with high-speed computational ability. In recent years, the manufacturing technology of CPU heat sinks has got much attention and becomes indispensable for developing the high-performance CPUs. In this study, some different design criteria for the flow guide and die are proposed during an extrusion process with complex cross-sectional shapes, such as CPU heat sinks. The plastic flow pattern of the billet inside the die cavity is analyzed by using a commercial finite element package "DEFORM 3D". The extrusion load and the curvature of the product are investigated. Taguchi method is used to find the optimum extrusion conditions of the die design parameters. The module of Die Stress Analysis in the finite element package "DEFORM 3D" is also used to simulate the stress, the strain and the displacement of the die during extrusion for CPU heat sinks. Finally, experiments of extrusion of Al 6061 were executed. The experimental data were compared with the analytical values to verify the validity of the proposed analytical models. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。