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兵工学报 ›› 2019, Vol. 40 ›› Issue (3): 601-611.doi: 10.3969/j.issn.1000-1093.2019.03.020

• 论文 • 上一篇    下一篇

1060铝板超声振动单点增量成形极限研究

杨明顺, 肖旭东, 姚志远, 袁启龙, 李言, 李玉玺   

  1. (西安理工大学 机械与精密仪器工程学院, 陕西 西安 710048)
  • 收稿日期:2018-07-06 修回日期:2018-07-06 上线日期:2019-04-29
  • 作者简介:杨明顺(1974—),男,副教授,硕士生导师。E-mail: yangmingshun@xaut.edu.cn
  • 基金资助:
    国家自然科学基金项目(51475366、51475146);陕西省自然科学基础研究计划项目(2016JM5074)

Research on Forming Limit of 1060 Aluminum Sheet in Ultrasonic Vibration-assisted Single Point Incremental Forming

YANG Mingshun, XIAO Xudong, YAO Zhiyuan, YUAN Qilong, LI Yan, LI Yuxi   

  1. (School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, China)
  • Received:2018-07-06 Revised:2018-07-06 Online:2019-04-29

摘要: 板材成形性和成形质量方面的不足是制约单点增量成形技术工业化应用的主要原因。将超声振动引入单点增量成形过程中,通过改变材料的变形机理来提高板料的成形极限。以超声振动单点增量成形的1060铝板圆锥台件作为对象,分析了振幅和频率对材料本构关系的影响规律;使用圆锥台件的侧壁成形角作为衡量标准,通过数值模拟和实验研究超声振动参数对于成形性的影响规律。结果表明:施加超声振动能够显著改变1060铝板的成形性,提高其成形极限;功率120 W、 频率25 kHz的超声振动参数可以使得1060铝板圆锥台件的成形极限达到最大,并能改善零件成形质量。

关键词: 超声振动, 单点增量, 成形极限, 数值模拟, 实验验证

Abstract: Deficiencies in formability and forming quality are the key factors to restrict the wide industrial application of single point incremental forming (SPIF) technology. Ultrasonic vibration is introduced into the single point incremental forming process to increase the forming limit of a material by changing its deformation mechanism. For 1060 aluminum sheet, the effects of vibration amplitude and frequency on the constitutive relation of material are analyzed. And the sidewall forming angle of a cone frustum part is taken as a measure standard. The influences of ultrasonic vibration parameters on the forming accuracy are studied through numerical simulation and experiment. The results show that the formability of 1060 aluminum sheet can be significantly changed by applying ultrasonic vibration, and the single point incremental forming limit and the forming quality can be improved under the conditions of 120 W and 25 kHz. Key

Key words: ultrasonicvibration, singlepointincrementalforming, forminglimit, numericalsimulation, experimentalverification

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