Effect of Pulsed Currents on the Springback Reduction of Ultra-High Strength Steels

被引：7

作者：

Song, Junghan ^{[1
]}

Jang, Injea ^{[1
]}

Gwak, Suhyun ^{[1
]}

Noh, Wooram ^{[1
]}

Lee, Jongsup ^{[1
]}

Bae, Gihyun ^{[2
]}

Kim, Daeyong ^{[3
]}

机构：

[1] Korea Inst Ind Technol, Met Forming Technol R&D Grp, Gaetbeol Ro 156, Incheon 21999, South Korea

[2] POSCO Global R&D Ctr, Met Res Grp, Songdogwahak Ro 100, Incheon 21985, South Korea

[3] Korea Inst Mat Sci, Mat Deformat Dept, 797 Changwondaero, Chang Won 51508, Gyeongnam, South Korea

来源：

INTERNATIONAL CONFERENCE ON THE TECHNOLOGY OF PLASTICITY, ICTP 2017 | 2017年 / 207卷

关键词：

Electric pulse; V-bending; Springback reduction; Ultra high strength steel; Stress relaxation;

D O I：

10.1016/j.proeng.2017.10.788

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the effect of a single pulsed electric current on the springback reduction of UHSS is investigated by experiments. To do this, a current pulse generator and a bending setup were designed and manufactured. V-bending tests of the 1180 grade steel sheet under a pulsed electric current were then carried out for evaluating springback reduction. The electric pulse was applied to the specimen with constant amplitude of electric current and duration time after the specimen was deformed. The influence of the two adjustable electrical parameters pulse duration and current density on springback was analyzed. The experimental results showed that springback angles are sharply decreased with increasing current densities and pulse durations. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：359 / 364

页数：6

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