Research on the forming process square shape of the super-thin wall housing case by newly made light-alloy matal with the high mechanical property

高力学性能新型轻合金材料超薄壁壳体方形成形工艺研究

• 批准号: 23560142
• 负责人: TANAKA Tatsuya
• 金额: $ 3.41万
• 依托单位: Doshisha University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560142/
• 关键词: 塑性加工; 半凝固軽合金; ECAP微細加工; 後方高速押出成形; インパクト成形; 電池用筐体; 薄肉軽量化; 加工硬化; 軽合金材料の加工性向上; 薄肉筐体加工性向上; 加工法による金属組織制御; 生産性向上; ECAP超微細加工; インパクト成形加工; サーボプレス機; Liイオン電池用筐体; インパクト加工

Semi-solid casting of AC4CH aluminum alloy (hereinafter, SS) was used for this research. Furthermore, ultrafine-grained metal (hereinafter, SS-ECAP) was fabricated by Equal-Channel Angular Pressing using SS material. Formability of these test materials was evaluated by an impact molding method to form thin-walled housing. This method is how to give impact load to the light weight metal of bulk at high speed, and extrude to backward from narrow clearance by high pressure. As a result, AC4CH aluminum alloy modified by semi-solid casting and ECAP processing achieve the improvement in not only the mechanical property but also the workability in impact process. Although it is known that the impact extrusion process can be performed stably to produce the thickness larger than 0.7 mm, a housing having super-thin walled square cross-section with 0.4 mm in thickness can be formed from SS-ECAP material.

该研究使用了AC4CH铝合金（以下简称SS）的AC4CH铝合金的半固体铸件。此外，使用SS材料相等通道的角度按压制来制造超铁粒金属（以下简称SS-ECAP）。这些测试材料的可调性是通过冲击成型方法评估的，以形成薄壁外壳。这种方法是如何在高速下向体积的轻质金属赋予撞击负荷，并通过高压从狭窄的间隙向后挤压。结果，通过半固体铸造和ECAP加工修饰的AC4CH铝合金不仅可以改善机械性能，而且还可以改善影响过程中的可加工性。尽管众所周知，可以稳定地执行冲击挤压过程以产生大于0.7 mm的厚度，但可以通过SS-ECAP材料形成具有0.4 mm厚度的超薄壁方横截面的外壳。

项目成果

Development of the continuous process method for ECAP using a tri-axis rotary die and microstructural evolution of semi-solid aluminum alloy

使用三轴旋转模具开发 ECAP 连续工艺方法以及半固态铝合金的微观结构演变

• 发表时间: 2012
• 期刊: High Performance Structures and Materials VI, WIT Transaction on the Built Environment
• 作者: K. Natori;F. Nomura;Y. Arao;T. Tanaka
• 通讯作者: T. Tanaka

Effect of mesostructure on strain rate dependent behavior in high strength steel sheets

细观结构对高强度钢板应变率相关行为的影响

• 发表时间: 2014
• 期刊: High Performance and Optimum Design Structure and Materials VII
• 作者: K. Natori;R. Kishi;H. Shimahara;Y. Arao;T. Tanaka
• 通讯作者: T. Tanaka

Forming of housing by impact extrusion press using ultrafine-grained semi-solid light metal

超细晶半固态轻金属冲击挤压成型壳体

• 发表时间: 2012
• 作者: K. Natori;T. Yashima;Y. Arao;T. Tanaka
• 通讯作者: T. Tanaka

半凝固軽金属微細化材料による超薄肉箱成形の研究

半固态轻金属细化材料超薄盒成形研究

• 发表时间: 2012
• 作者: 水谷秀行;浜岡亨;浜田晴司;稲崎一郎;秋充,諏訪部仁,石川憲一;野尻竜男，荒尾与史彦，田中達也，名取恵子;Ichiro INASAKI;山田大介，諏訪部 仁，石川 憲一;三田村貴博，諏訪部仁，石川憲一;水谷秀行・浜岡亨・浜田晴司・稲崎一郎;矢嶌知晃,荒尾与史彦,田中達也
• 通讯作者: 矢嶌知晃,荒尾与史彦,田中達也

Development of the continuous process method for ECAP using a tri-axis rotary die and microstructural evolution of semi-solid aluminium alloy

• DOI: 10.2495/hpsm120101
• 发表时间: 2012-06
• 期刊: WIT Transactions on the Built Environment
• 作者: K. Natori;F. Nomura;Y. Arao;Tatsuya Tanaka