Approaches for springback reduction when forming ultra high-strength sheet metals
Approaches for springback reduction when forming ultra high-strength sheet metals
复制标题
超高强度板材成形时减少回弹的方法
DOI：
10.1088/1757-899x/159/1/012028
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Liewald
中科院分区：
文献类型：
--
作者：
Radonjic;Liewald
如今，汽车行业不断受到越来越多的环境法规和不断提高的乘客安全标准的挑战(NCAP，第1部分)。为了满足上述要求，在研究和工业应用中使用超高强度钢引起了人们的极大兴趣。在成形这类材料时，主要问题是零件释放后产生的大量回弹。本文介绍了几种通过成形一个帽形槽形零件来减少回弹量的方法的适用性。提出了一种基于交替拉深成形的压缩弹跳的新方法。本研究使用的是DP980级超高强度钢。零件的测量是在重要的横截面上进行的，以便在参考几何形状和零件的释放形状之间提供定性的比较。对所获得的结果进行了分析和使用，以量化减少回弹的特定方法的成功程度。以曲面帽形槽形零件为例，研究结果表明，采用DP980作为零件材料，可显著减小零件形状偏差。
Nowadays, the automotive industry is challenged constantly by increasing environmental regulations and the continuous enhancement of standards with regard to passenger's safety (NCAP, Part 1). In order to fulfil the aforementioned requirements, the use of ultra high-strength steels in research and industrial applications is of high interest. When forming such materials, the main problem results from the large amount of springback which occurs after the release of the part. This paper shows the applicability of several approaches for the reduction of springback amount by forming of one hat channel shaped component. A novel approach for springack reduction which is based on forming with an alternating blank draw-in is presented as well. In this investigation an ultra high-strength steel of the grade DP 980 was used. The part's measurements were taken at significant cross-sections in order to provide a qualitative comparison between the reference geometry and the part's released shape. The obtained results were analysed and used in order to quantify the success of particular approaches for springback reduction. When taking a curved hat channel shaped component as an example, the results achieved in the investigations showed that it is possible to reduce part shape deviations significantly when using DP 980 as workpiece material.
DOI：
10.4028/www.scientific.net/amr.1018.277
发表时间：
2014
期刊：
Advanced Materials Research
影响因子：
--
作者：
Annika Weinschenk;W. Volk
通讯作者：
W. Volk
影响因子：
6.3
作者：
Peng Chen;M. Koç
通讯作者：
Peng Chen;M. Koç
IDDRG2016“高强度板材成型挑战”会议
DOI：
10.1088/1757-899x/159/1/011001
发表时间：
2016
期刊：
IOP Conference Series: Materials Science and Engineering
影响因子：
--
作者：
T. Yoshida;E. Isogai;Koichi Sato;K. Hashimoto
通讯作者：
K. Hashimoto