针对常规变形方法难以实现的轻合金板成形问题,综合固体颗粒介质成形和超声振动塑性成形技术,提出超声激励颗粒介质成形工艺.采用ABAQUS对变幅杆及凹模按照20 kHz工作频率进行设计并展开模态及谐响应分析,并以此为基础,设计并制造了最大输出功率1.5kW的板材超声激励颗粒介质成形模具,进行AZ31B筒形件热态拉深试验,研究超声振动对板材颗粒介质拉深成形的影响.结果表明:超声激励促进颗粒介质的流动性及其传压性能;超声激励影响镁合金板材的极限拉深比,在振幅为6.7～11.6 μm范围内,该极限拉深比呈现先增加后降低的规律.超声振动可以降低最佳压边力及成形载荷并抑制法兰区起皱,并且成形载荷随着超声振幅的增加,载荷降低比例越高.
参考文献
| [1] | Huang ZH.;Lucas M.;Adams MJ..Influence of ultrasonics on upsetting of a model paste[J].Ultrasonics,20021/8(1/8):43-48. |
| [2] | 庄新村;王家鹏;郑欢;赵震.超声振动辅助压缩成形机理[J].中国有色金属学报（英文版）,2015(7):2352-2360. |
| [3] | Masao Murakawa;Masahiko Jin.The utility of radially and ultrasonically vibrated dies in the wire drawing process[J].Journal of Materials Processing Technology,20011/3(1/3):81-86. |
| [4] | Takashi Jimma;Yukio Kasuga;Nobuyoshi Iwaki;Osamu Miyazawa;Eiji Mori;Katsuhiko Ito;Hajime Hatano.An application of ultrasonic vibration to the deep drawing process[J].Journal of Materials Processing Technology,19980(0):406-412. |
| [5] | WEN Tong;GAO Rui;CHEN Xia.Influence of High Frequency Vibration on Deep Drawing Process of AZ31 Sheet at Room Temperature[J].上海交通大学学报（英文版）,2012(4):456-460. |
| [6] | Siddiq, A.;El Sayed, T..Ultrasonic-assisted manufacturing processes: Variational model and numerical simulations[J].Ultrasonics,20124(4):521-529. |
| [7] | Jung-Chung Hung;Chih-Chia Lin.Investigations on the material property changes of ultrasonic-vibration assisted aluminum alloy upsetting[J].Materials & design,2013Mar.(Mar.):412-420. |
| [8] | 蔡改贫;翁海珊;姜志宏;罗小燕.振动拉拔的非局部摩擦问题的近似求解及表面效应初探[J].机械工程学报,2006(8):190-194. |
| [9] | Y. Ashida;H. Aoyama.Press forming using ultrasonic vibration[J].Journal of Materials Processing Technology,20070(0):118-122. |
| [10] | 李涛;郎利辉;周贤宾.先进板材液压成形技术及其进展[J].塑性工程学报,2006(3):30-34,47. |
| [11] | 王忠金;袁斌先.板材软模成形过程有限元与无网格伽辽金法耦合的数值分析[J].中国有色金属学报（英文版）,2014(2):462-469. |
| [12] | 刘伟;刘钢;崔晓磊;徐永超;苑世剑.板材成对液压成形工艺加载路径对成形性的影响[J].中国有色金属学报（英文版）,2011(z2):465-469. |
| [13] | 王刚;王建珑;张拓达;张治朋.AZ31B镁合金板材快速气压胀形行为[J].中国有色金属学报,2011(9):2023-2027. |
| [14] | Zhong-Jin Wang;Yan Liu.Investigation on deformation behavior of sheet metals in viscous pressure bulging based on ESPI[J].Journal of Materials Processing Technology,201011(11):1536-1544. |
| [15] | 高铁军;刘洋;陈鹏;王忠金.铝合金覆层板胀形过程及成形性能[J].中国有色金属学报（英文版）,2015(4):1050-1055. |
| [16] | 曹秒艳;赵长财;董国疆.镁合金板材颗粒介质拉深工艺参数数值模拟[J].中国有色金属学报,2012(11):2992-2999. |
| [17] | 曹秒艳;赵长财;董国疆;郝海滨.基于固体颗粒介质成形工艺筒形件拉深力学分析[J].机械工程学报,2013(2):42-48. |
| [18] | 李鹏亮;张志;曾元松.钛合金机头罩固体颗粒介质成形工艺研究[J].锻压技术,2012(5):60-63. |
| [19] | 罗仁平;黄雷;戴儇;王武荣.镁合金 AZ31B板材温成形流变规律及本构模型[J].塑性工程学报,2015(1):82-87. |
| [20] | Koh, Youngwoo;Kim, Daeyong;Seok, Dong-Yoon;Bak, Jeonghwan;Kim, Sang-Woo;Lee, Young-Seon;Chung, Kwansoo.Characterization of mechanical property of magnesium AZ31 alloy sheets for warm temperature forming[J].International Journal of Mechanical Sciences,2015:204-217. |
| [21] | Gall, S.;Coelho, R.S.;Müller, S.;Reimers, W..Mechanical properties and forming behavior of extruded AZ31 and ME21 magnesium alloy sheets[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:180-187. |
| [22] | 秦泗吉;熊柏青;陆宏;张婷婷.轴对称拉深成形法兰变形区临界压边力[J].中国有色金属学报（英文版）,2012(z2):239-246. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%