Transactions of Materials and Heat Treatment

Title：Research on the technology of ultrasonic vibration assisted fine blanking process

Authors： Cheng Tao1 Liu Yanxiong2 Hua Lin2

Unit： 1.School of Materials Science & Engineering Wuhan University of Technology 2.School of Automotive Engineering Wuhan University of Technology

KeyWords： fine blanking medium-high carbon steel ultrasonic velocity field equivalent stress equivalent strain

ClassificationCode：

year,vol(issue):pagenumber：2016,41(4):25-31

Abstract：

Fine blanking process has been widely used in the fields of machinery, automobile and aerospace because of its high efficiency and good quality. Ultrasonic assisted plastic deformation with the particular “surface effect” and “volume effect” has many advantages, such as reducing the flow stress of material and decreasing friction coefficient. The effect of ultrasonic on fine blanking process was researched when the ultrasonic was applied to the fine blanking process of medium-high carbon steel. The ultrasonic assisted fine blanking process was simulated by Deform-2D, and the velocity field, equivalent stress field and equivalent strain field were analyzed emphatically during fine blanking process. Based on the ductile criterion proposed by Oyane, the mechanism of crack generation in the ultrasonic assisted fine blanking process was revealed. Through the research on the influence law of parameters and technology optimization，the ultrasonic assisted fine blanking workpieces with small fillet region and good quality of cross section were obtained.

Funds：

国家自然科学基金资助项目（51305316，51375356）

程涛（1990-），男，硕士研究生

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