鋁合金錐形件剪旋壓製程之模擬分析

Analysis of Shear Spinning Process of Aluminum Alloy conical parts

羅兆渝(Chao-yu Lo)

指導教授 ： 陳政順

國立臺北科技大學/機電學院/機電整合研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00129

摘要

本研究乃採用有限元素模擬分析鋁合金6061-T6薄壁圓盤胚料強力剪旋壓的複雜塑性成型過程中的成型應力、應變與旋壓力之分佈情形。最後再利用中的 直交表，主要的控制因子有進給速度、型模轉速、旋輪直徑和旋輪安裝角等四個因子，每ㄧ因子各有3個水準，進行9組分析模擬實驗，並以田口實驗法之望小特性的品質分析法以旋胚成形中之旋輪最小旋壓力為其實驗目標，經由田口法中品質特性因子反應表以及 S/N 比折線圖與反應表，顯示出影響錐型件剪旋形中最大的兩個因子，分別是進給速度和旋輪直徑。在此個案之最佳化參數組合分別為進給速度 = 2 mm/rev、旋輪直徑 = 150 mm、旋輪安裝角 = 25°、型模轉速 = 250 rpm。

關鍵字

錐形件剪旋壓 ； 有限元素分析 ； 田口實驗法

並列摘要

In this paper, the three-dimensional elastic-plastic finite element technique is used to perform the numerical simulation of the shear spinning of thin-walled shell process of 6061-T6 Aluminum alloy, and the distribution rules of spinning force, forming stress and strain, The Taguchi method was used to study the effects of processing parameters on the spinning force during the forming process. The orthogonal array with 4 main control factors which are the roller feed rate, rotation speed of mold, roller diameter, and roller installation angle were considered. The design quality of process is minimization of spinning force, and is characterized as the smaller-is better. In this case study, the result from the calculation of S/N ratios, linear graphs and response graphs of control factors showed that the first two biggest factors that affect shear spinning process, are the roller feed rate and roller diameter. And the combination of optimal parameters are feed rate 2 mm/rev, spinning diameter 150 mm, attached angle of spinning wheel 25° and mold rotating speed of mold is 250 rpm.

並列關鍵字

Conical Parts Spinning ； Finite Element Method ； Taguchi method

參考文獻

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