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Micro Stretch Forming of Foil using Lithography Process

使用光刻工艺对箔进行微拉伸成型

基本信息

批准号：
14550116
负责人：
HAYASHI Nobukazu
金额：
$ 1.54万
依托单位：
Toyota National College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550116/
关键词：
Micro forming Lithography Plastic deformation Stretch forming Foil Two steps forming Wavy sheet Limit elongation マイクロ波形状

项目摘要

The punch stretchability lowers even in the material which has good formability like aluminum, when the sheet thickness extremely decreases like the foil. This study aims for such material with small thickness to give a method for forming dome shape. The principle of the forming process is not tension in plane but compression for the thickness direction. The process is as follows ; first, the sheet is wrinkled, and the second the corrugated sheet is extended like a lantern. This study started from to produce the corrugated sheet by mechanical means. The tooth-profile tool was made by cylinder pin of 0.5 mm diameter, and the tool compressed the aluminum foil of 20 μm thickness against a flat die. As a result, the flat foil wrinkled and became the corrugated sheet. This corrugated sheet received tensile test, and large elongation was obtained. Next, the method for producing the corrugated sheet by the lithography processing was examined. The resist was applied by the spinner, and dried by the oven. Then, it was exposed by the Hg-Xe lamp, and the treatment of the development and the etching were carried out. The mask of the stripe pattern was made for oneself. The surface of the aluminum foil after the lithography processing was examined and it was found that the grooves were made regularly. This processing was applied for the both sides of aluminum foil. The limit tensile strain of the processed sheet was measured. As the result, it was found that only small strain was obtained against our expectation. So, it was clarified that the mechanism of the rupture had to be analyzed first of all.

当板厚度像箔一样极大地减小时，即使在具有良好成形性的材料如铝中，冲头拉伸性也降低。本研究旨在针对这种厚度较小的材料给出一种形成圆顶形状的方法。成形过程的原理不是在平面上拉伸，而是在厚度方向上压缩。该过程如下：首先，片材起皱，然后波纹片材像灯笼一样延伸。本研究从用机械方法生产瓦楞纸板开始。齿形工具由直径为0.5mm的圆柱销制成，并且工具将20 μm厚的铝箔压靠在平模上。结果，平箔起皱并成为波纹片材。对该波纹板进行拉伸试验，得到了较大的延伸率。接着，检查通过光刻加工生产波纹板的方法。通过旋转器施加抗蚀剂，并通过烘箱干燥。然后，用汞灯曝光，并进行显影和蚀刻处理。条纹图案的面具是为自己做的。检查平版印刷处理后的铝箔表面，发现凹槽是规则的。该处理适用于铝箔的两面。测量加工后的板的极限拉伸应变。结果发现，与我们的预期相反，只获得了小的应变。因此，必须首先分析断裂的机理。

项目成果

期刊论文数量（9）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Effect of Tooth Shape on the Two Steps Forming of Compression and Stretching (in Japanese)

齿形对压缩和拉伸两步成形的影响（日文）

DOI：
发表时间：
2003
期刊：
Proc. of JSTP
影响因子：
0
作者：
Nobukazu HAYASHI;Masanori KOBAYASHI
通讯作者：
Masanori KOBAYASHI

林伸和, 小林政教: "歯形工具の板厚方向圧縮によって生じたしわを利用した金属薄板の張出し成形"日本機械学会論文集C編. 68・672. 2451-2456 (2002)

Nobukazu Hayashi、Masanori Kobayashi：“利用齿状工具厚度方向上的压缩引起的皱纹进行薄金属板的拉伸成形”，日本机械工程学会会刊，C 版 68・672（2002 年）。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Stretch Forming of Sheet Metal Using the Wrinkle Created by Compression of Tooth-Shaped Tool (in Japanese)

利用齿形工具压缩产生的皱纹对金属板进行拉伸成形（日语）

DOI：
发表时间：
2002
期刊：
J. of JSME, Series C 68-672
影响因子：
0
作者：
Nobukazu HAYASHI;Masanori KOBAYASHI
通讯作者：
Masanori KOBAYASHI

歯形工具圧縮-張出しの2段成形プロセスにおける歯先形状の影響

齿顶形状对齿形刀具压胀两阶段成形过程的影响

DOI：
发表时间：
2003
期刊：
第54回塑性加工連合講演会講演論文集
影响因子：
0
作者：
林伸和;小林政教
通讯作者：
小林政教

Formability of Wavy Sheet Created by Buckling

屈曲产生的波浪板的成形性

DOI：
发表时间：
2002
期刊：
IDDRG2002 Information Technology, Global Environment and Sheet Metal Forming
影响因子：
0
作者：
Nobukazu HAYASHI;Masanori KOBAYASHI
通讯作者：
Masanori KOBAYASHI