权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of Aluminium Clad Sheets for Automobiles using Insert-metals

使用嵌件金属的汽车用铝复合板的开发

基本信息

批准号：
06555215
负责人：
IKEDA Senri
金额：
$ 1.6万
依托单位：
Miyagi National College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06555215/
关键词：
Plastic Deformation Clad Rolling Bonding Composite Materials Extrusion Shear Defusion Layr Insert Metal 拡散層計量化

项目摘要

The fabrication process and the effects of several factors on the clad sheets with insert materials were presented. The clad materials based aluminium alloy and soft magnetic iron have been made as metal-metal composites. In order to produce well-bonded clad metals by plastic deformation, it is necessary to have 3 points : (a) oxide-free surface under high contact pressure, (b) large scale shear strain, and (c) compatibility between the materials, which are all paramount. The ratio of sheets thickness and flow stress ratio, sigma _<hard>/sigma _<soft> are important factors as well. The deposited titanium films were used to expect as acrivator to bond ferrous metal with aluminium metals and alloys.For these background, two forming processes were examined, namely Prepheral Shear Bonding and clad rolling with inserted metal film. It was shown that prosesses had good advantage of workability. Furthermore, the weldability of the iron and ferrous metals were improved by the inserted deposited Ti film at warm deformation conditions (573K) followed by little diffusion layrs. The typical structures were observed on the interface of the well-bonded rolling clads, where many lateral micro-stripes along the transverse direction of rolling and macro-scale wavy interfaces. These results would be expected to improbe the practical manufacturing processes of the aluminium/steel clad sheets for automobiles.

介绍了复合板的制备工艺及影响复合板性能的几个因素。以铝合金和软磁铁为基体的复合材料已制成金属-金属复合材料。为了通过塑性变形生产良好结合的覆层金属，必须具有3点：（a）在高接触压力下无氧化物的表面，（B）大尺度剪切应变，和（c）材料之间的相容性，这都是至关重要的。板厚比和流变应力比σ_<hard>/σ_<soft>也是重要的影响因素。以沉积钛膜为粘结剂，研究了两种成形工艺，即预剪切粘结和金属膜复合轧制。结果表明，该工艺具有良好的施工性。此外，在温变形条件下（573 K）插入沉积的Ti膜后再加入少量的扩散层，可改善铁和黑色金属的焊接性。在结合良好的轧制包层界面上观察到典型的组织结构，即沿轧制横向沿着分布着许多横向微条纹和宏观尺度的波状界面。这些结果可望改进汽车用铝/钢复合板的实际生产工艺。