A New Sheet Metal Forming Technique Using Developed Blanks Combined with Joining Process

采用开发毛坯结合连接工艺的新型金属板材成形技术

• 批准号: 13450294
• 负责人: YAMAGUCHI Katsuhiko
• 金额: $ 7.3万
• 依托单位: Kyoto Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13450294/
• 关键词: Sheet Metal Forming; Deep Drawing; Welding; Mechanical Joint; Forming Properties; Forming Limit; New Forming Process; 深絞り

In this research, a new metal forming technique for production of very deep cups was developed, in which deep drawing method was combined with joining process. In order to reduce the drawing resistance of blank material, the developed blank, the flange portion of which is divided into some elements just like petals, is employed instead of a conventional circular blank. This makes it possible to produce a very deep cup in one drawing operation.However, there remain seams between petals at the side wall of drawn cup, which are only contacted, not jointed. To produce a seamless cup from the developed blank cup in one drawing operation, petals at the wall side were jointed mechanically in deep drawing process. Two mechanical jointing procedures were examined: In first method, the overlap of blank at flange were utilized for jointing petals mechanically. Another mechanical joint was conducted by curling petals and meshing together. Adhesive joint and ordinary welding method were also attempted experimentally. The effects of the jointing or welding conditions on properties at seams were clarified about each jointing process. As an alternative useful welding method, the possibility of ultrasonic welding was also investigated.

本研究开发了一种将拉深法与连接法相结合的超深杯金属成形新工艺。为了减少毛坯材料的拉拔阻力，采用凸缘部分像花瓣一样分成若干单元的发达毛坯代替传统的圆形毛坯。这使得在一次拉伸操作中产生非常深的杯形成为可能。然而，在抽杯的侧壁，花瓣之间仍然有接缝，只是接触，没有接合。为了将研制的毛坯杯一次拉深加工成无缝杯，在拉深过程中对壁侧花瓣进行了机械连接。研究了两种机械连接方法：第一种方法是利用凸缘处的毛坯重叠进行花瓣机械连接。另一种机械连接是由卷曲的花瓣和啮合在一起进行的。并对粘接法和普通焊接法进行了试验。阐明了焊接或焊接条件对焊缝性能的影响。作为一种可行的替代焊接方法，对超声焊接的可能性进行了探讨。

项目成果

飯塚高志: "アルミニウム合金/鋼ハイブリッド材の接合特性に及ぼす加工温度の影響"第54回塑性加工連合講演会講演論文集. 117-118 (2003)

Takashi Iizuka：“加工温度对铝合金/钢混合材料粘合性能的影响”第 54 届塑料工作联盟会议记录 117-118 (2003)。

飯塚高志: "超音波接合法による軟鋼板とアルミニウム板のT字継手の接合"平成16年度塑性加工春季講演会講演論文集. 41-42 (2004)

Takashi Iizuka：“通过超声波焊接方法连接低碳钢板和铝板的 T 型接头”2004 年春季塑料加工会议论文集 41-42 (2004)。

S.NAKAGAWA: "A Fundamental Study on Ultrasonic Welding of Aluminum and Steel Sheets"The Proceedings of the 53rd Japanese Joint Conference for the Technology of Plasticity. 417-418 (2002)

S.NAKAGAWA：“铝和钢板超声波焊接的基础研究”第 53 届日本塑性技术联合会议论文集。

中川悟: "アルミニウム/軟鋼板の超音波接合に関する基礎的研究"第53回塑性加工連合講演会講演論文集. 417-418 (2002)

中川悟：“铝/低碳钢板超声波接合的基础研究”第 53 届塑料工作联盟会议记录 417-418 (2002)。

T.IIZUKA: "Characteristics of Ultrasonic Welding of Steel and Aluminum Alloy Sheets"Manufacturing Science of Advanced Composites (ACM-9). 85-92 (2004)

T.IIZUKA：《钢和铝合金板材超声波焊接的特性》先进复合材料制造科学（ACM-9）。