伺服沖床運動曲線與金屬板材成型關聯性分析;Sheet Metal Forming Correlation Analysis for Servo Press Motion Curve

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题名:	伺服沖床運動曲線與金屬板材成型關聯性分析;Sheet Metal Forming Correlation Analysis for Servo Press Motion Curve
作者:	林峰毅;Lin, Feng-I
贡献者:	機械工程學系在職專班
关键词:	伺服沖壓運動曲線;不銹鋼SUS304;鋁合金A6061;QForm;田口法;深引伸;Servo stamping motion curve;SUS304;A6061;QForm;Taguchi method;Deep drawing
日期:	2021-07-22
上传时间:	2021-12-07 13:16:20 (UTC+8)
出版者:	國立中央大學
摘要:	近年來，引入伺服沖壓已成為金屬沖壓的一種選擇，提高材料可成形性和減少衝壓成形時間時間是重要目標。本論文研究分為兩個階段，第一階段探討的是使用不同伺服沖壓運動曲線(Crank曲線與Vibration1曲線)對不銹鋼SUS304及鋁合金A6061的可成形性。實驗結果得知不銹鋼SUS304使用Vibration1曲線比Crank曲線提升了67%的成形深度，在相同的成形深度下，變薄率減少了約14%以上，另外鋁合金A6061使用Vibration1曲線比Crank曲線提升了0.09%的成形深度，在相同的成形深度下，變薄率減少了約4%以上。第二階段以縮短成形時間、降低變薄率為目標進行不銹鋼SUS304單一目標最佳化。我們使用有限元素軟體(QForm)及網格軟體Gmesh來模擬伺服沖壓運動曲線相關不同深引伸成型的參數，並使用SEYI伺服沖床進行了一系列驗證實驗。將模擬和實驗數據進行比較。最後使用田口法的望小特性來確認深引伸最佳成型參數，從實驗得知縮短成形時間的最佳化數據比L9中最短的成形時間減少了0.156秒，變薄率最佳化數據比L9中最低的減薄率減少了0.833%。;In these years, lead servo press into industry has been a choice, improve material formability and reduce stamping time has been an important goal. This paper divided into two parts. First, using different kind of servo stamping motion curves, including crank and vibrational curve, to find out formability about SUS304 and A6061. According to the result, SUS304 by using vibrational curve has 67% more formability than using crank curve. Under the same forming depth, thinning rate reduce 14%. In addition, by using vibration curve, A6061 increase 0.09% forming depth than using crank curve, and in the same forming depth, thinning rate reduce 4%. Second, to shorten the forming time and reduce the thinning rate, we optimize the single target of SUS304. We used finite element software (Qform) and meshing software (Gmesh) to simulate servo press and set different kind of Deep drawing parameter. We also use SEYI servo punch to do experiments and comparing experiment result and simulation result. At last, we used Taguchi Method to find out the best forming parameter. According to the experiment, the optimize parameter of shorten forming time has reduced 0.156 sec than L9 shortest forming time, the optimize parameter of thinning rate has reduced 0.833% than L9 lowest thinning rate.
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