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Development of Deep Drawing System of Rectangular Shells with High Frequency Vibration for Recycling Aluminum Composite Materials

回收铝复合材料高频振动矩形壳体深拉系统的研制

基本信息

批准号：
10650116
负责人：
TAKEMASU Teruie
金额：
$ 2.18万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650116/
关键词：
Recycling Aluminum Composite Materials Battery Case High Frequency Vibration Deep Drawing Process Ironing Process Rectangular Cups Inclined Dies 携帯電話用電池ケース角筒深絞り絞りしごき加工潤滑剤高周波振振動有限要素法最適化

项目摘要

The purpose of this study is to develop the innovative deep drawing system of rectangular shells, which can improve the formability of the aluminum composite sheet materials drastically. The target product is the battery case for portable telephones. The results obtained in this study are as follows.1) The multistage ironing experiments of extruded aluminum pipe with ultrasonic vibration are firstly carried out to optimize the last production process of rectangular shells. It is found that the ironing load reduces about by half and the surface finish of the sidewall of the products can be drastically improved by applying the ultrasonic vibration in axial direction.2) The number of deep drawing stages of rectangular shells can be decreased from 8 to 4 by optimizing the shape of the tools and the heat treatment process of materials.3) The experimental apparatus of deep drawing for rectangular shells with high frequency vibration are constructed. In this apparatus, the die is divided into two at the center of the short edge or the long edge, and the vibration in radial direction is applied by actuators. It is confirmed that the punch load decreases about by 20% and the sidewall thickness of the products becomes uniform by applying the vibration, but the number of processing stage cannot be reduced.4) A reformative deep drawing method for rectangular cups are proposed. In this method, one punch and two inclined dies are used, and rectangular shells with final cross-section shape are formed through only one indentation process. We can obtain rectangular shells which sidewall height is about three times as the length of the rectangular short edge.

本研究的目的是开发矩形壳体的创新拉深系统，该系统可以大大提高铝复合板材的成型性。目标产品是便携式电话的电池盒。研究结果如下：1)首先进行了挤压铝管超声振动多级熨烫实验，优化了矩形管壳的最终生产工艺。研究发现，施加轴向超声振动后，熨烫载荷减少约一半，制品侧壁表面光洁度得到显着提高。2)通过优化工具形状和材料热处理工艺，可将矩形壳体拉深阶段数从8级减少到4级。3)搭建了高频振动矩形壳体拉深实验装置。在该装置中，模具在短边或长边的中心被分成两部分，并且由致动器施加径向振动。经证实，通过施加振动，冲头载荷减少了约20％，产品的侧壁厚度变得均匀，但加工阶段的数量并没有减少。4）提出了一种改进的矩形杯拉深方法。该方法使用一个冲头和两个倾斜模具，仅通过一次压痕工序即可形成具有最终横截面形状的矩形壳体。我们可以得到矩形壳体，其侧壁高度约为矩形短边长度的三倍。