Flexible die drawing of magnesium alloy sheet by superimposing ultrasonic vibration

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• 作者：Miao-yan CAO^a ; Jian-chao LI^b ; Ya-ning YUAN^b ; Chang-cai ZHAO^b ; ^{zhao1964@ysu.edu.cn}
• 关键词：ultrasonic vibration ; magnesium alloy sheet ; deep drawing ; solid granules
• 刊名：Transactions of Nonferrous Metals Society of China
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：163-171
• 全文大小：3127 K
• 卷排序：27

文摘

Combining solid granule medium forming technology with ultrasonic vibration plastic forming technology, ultrasonic vibration granule medium forming (UGMF) technology was proposed. To reveal the effect of ultrasonic vibration on flexible-die deep drawing, an ultrasonic vibration with a frequency of 20 kHz and a maximum output of 1.5 kW was on the solid granule medium deep drawing of AZ31B magnesium alloy sheet. The results revealed that ultrasonic vibration promotes the pressure transmission performance of the granule medium and the formability of the sheet. The forming load declines with the ultrasonic amplitude during the drawing process as a result of the combined influence of the “surface effect” and the “softening” of the “volume effect”.