Deep drawing with radial segmental blank holder based on magnetic control

被引：0

作者：

Zhang H. ^{[1
,2
]}

Qin S. ^{[1
]}

Cao L. ^{[2
]}

Meng L. ^{[1
]}

Cheng X. ^{[1
]}

Mao Y. ^{[1
]}

机构：

[1] Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education of China, Yanshan University, Qinhuangdao

[2] College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao

来源：

Zhongguo Kexue Jishu Kexue/Scientia Sinica Technologica | 2021年 / 51卷 / 04期

关键词：

Blank holding force; Deep drawing; Magnetic circuit design; Radial segmental blank holder; Wrinkling;

D O I：

10.1360/SST-2020-0174

中图分类号：

学科分类号：

摘要：

We propose a radial segmental blank holder technique based on the electro-permanent magnet (EPM) technology, in which we can obtain a more reasonable blank holding force (BHF). The magnetic pole unit was constructed according to the characteristics of soft magnetic materials and adjusted the magnetic state of the magnetic pole unit by an instantaneous low-intensity current. The tensile test revealed that the magnetic pole unit can provide a sufficiently large magnetic attraction force to satisfy the blank holding requirements. The measurement results of the temperature rise experiment verified that the magnetic pole unit would not cause overheating. According to the characteristics of the drawing process, the blank holder device and the drawing die based on EPM technology were designed. The BHF applied during the drawing process does not need to be continuously energized, so it has the advantages of energy-saving and safety. Theoretical derivation was used to determine the feasibility of the radial segmental blank holder technique and analyzed the initial distribution of the BHF on sheet metal using FEA. The results show that, compared with the conventional blank holder, we could implement the BHF applied by the new method in a larger radial area. We further verified the efficiency of the radial segmental blank holder technique by performing simulation. Since the BHF is more rationally distributed in the radial direction, we could control the sheet thickness variation better. Finally, the drawing experiment of the galvanized sheet revealed that the EPM technology is feasible for the blank holder, and the radial segmental blank holder technique can efficiently suppress wrinkling and enhance the performance. © 2021, Science Press. All right reserved.

引用

页码：388 / 398

页数：10

共 22 条

[1]

Obermeyer E J, Majlessi S A., A review of recent advances in the application of blank-holder force towards improving the forming limits of sheet metal parts, J Mater Processing Tech, 75, pp. 222-234, (1998)

[2]

Wang W R, Chen G L, Lin Z Q, Et al., A new strategy for the optimization of variable blank holder force in sheet metal forming, J Plast Eng, 14, pp. 102-108, (2007)

[3]

Li X N, Wang Z Q, Yin J Q., Rectangular box drawing die design of controlled blank holder force, Forg Stamp Tech, 1, pp. 46-47, (2006)

[4]

Zheng L, Wang Z, Liu Z, Et al., Formability and performance of 6K21-T4 aluminum automobile panels in VPF under variable blank holder force, Int J Adv Manuf Technol, 94, pp. 571-584, (2018)

[5]

Sun C Z, Chen G L, Lin Z Q, Et al., Improvement of the formability of box deep drawing using variable blank-holder forces, J Shanghai Jiao Tong Univ, 37, pp. 1883-1886, (2003)

[6]

Liu Z Y, Xiong B Q, Li X W, Et al., Deep drawing of 6A16 aluminum alloy for automobile body with various blank-holder forces, Rare Met, 38, pp. 946-953, (2019)

[7]

Yang L, Jin Z L, Qin S J, Et al., Modeling and optimization of composite and servo-driven actuator for blank-holder force control, J Mech Eng, 51, pp. 139-145, (2015)

[8]

Hassan M A, Suenaga R, Takakura N, Et al., A novel process on friction aided deep drawing using tapered blank holder divided into four segments, J Mater Processing Tech, 159, pp. 418-425, (2005)

[9]

Osakada K, Mori K, Altan T, Et al., Mechanical servo press technology for metal forming, CIRP Ann, 60, pp. 651-672, (2011)

[10]

Lu W Q, Hu Y W, Huang W X., Investigation of hybrid servo press based on heavy-load driving of AC motor, Electr Mach Control Appl, 35, pp. 11-14, (2008)

← 1 2 3 →