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題名 | 螺旋流道在異形孔洞拋光中的研究=Study of the Helical Passageway in the Special Holes by Abrasive Flow Machining |
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作者 | 周世賢; 王阿成; | 書刊名 | 健行學報 |
卷期 | 34:3 2014.07[民103.07] |
頁次 | 頁33-43 |
分類號 | 446.895 |
關鍵詞 | 流體研磨; 螺旋流道; 表面粗糙度; 異形孔洞; 拋光方法; Abrasive flow machining; Helical passageway; Surface roughness; Special hole; Polishing method; |
語文 | 中文(Chinese) |
中文摘要 | 流體研磨加工(Abrasive Flow Machining,AFM)是種既快速、操作簡單、低 成本又有效率的拋光方法。但異形孔洞在經過流體研磨拋光後,並無法得到均勻 一致的表面粗糙度。原因在於流體研磨的拋光過程,是單一方向的往復加工,使 得異形孔洞的角落無法有效的被拋光。因此本研究在異形孔洞內設計螺旋流道, 讓加工流體在拋光時產生螺旋的旋轉效果,使原本單向性的拋光路徑改變為多向 性的拋光路徑,讓拋光後的異形孔洞表面,可以得到均勻的表面粗糙度。在本研 究中,發現螺旋流道不但可以改善異形孔洞粗糙度的佈均勻性;當螺旋數目越多 時,拋光後異形孔洞的表面粗糙度越均勻。 |
英文摘要 | Abrasive flow machining (AFM) is a simple and efficiency polishing method. But it is difficult to get the uniform roughness in the polygon hole polishing, due to the axial movement of the abrasive medium in the working process. Therefore, helical cores with different shape are put in the hole to form various channels that change the mechanism of AFM form the simple axial motion to the multiple directions. In the experiments, the uniform surface roughness could be obtained easily when polygon hole close to circular hole. The results also showed that helical passageway could indeed improve the uniformity of surface roughness; furthermore, excellent surface roughness was located soon during large number of helices in core. |
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