Analysis of Metal Jet Emission at High-Speed Oblique Collision Interface and Impact Welding Mechanism of Dissimilar Metal Joints

高速斜碰撞界面金属射流发射及异种金属接头冲击焊接机理分析

• 批准号: 21360357
• 负责人: KUMAI Shinji
• 金额: $ 11.07万
• 依托单位: Tokyo 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: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360357/
• 关键词: 接合・溶接; 構造・機能材料; 異種金属接合; メタルジェット; 接合界面; 材料加工・処理; 衝撃圧着

Metal jet emission and weld interface formation in impact welding were investigated for dissimilar metal lap joints. Numerical simulation of oblique collision between metal plates was performed using smoothed particle hydrodynamics(SPH) method for various plate thicknesses, collision velocities, and collision angles. Metal jet emission and formation of the characteristic wavy weld interface in impact welding were reproduced successfully. The composition of the metal jet was governed by the degree of relative density difference between two metals. Several types of lap joints were fabricated by magnetic pulse welding(MPW). Experimental results were in good agreement with the simulation results.

研究了异种金属搭接接头冲击焊过程中金属射流的喷射和焊缝界面的形成。采用光滑粒子流体动力学（SPH）方法对不同板厚、碰撞速度和碰撞角度下的金属板斜碰撞进行了数值模拟。成功地再现了冲击焊中金属射流的喷射和特征波形焊缝界面的形成过程。金属射流的成分取决于两种金属之间的相对密度差异程度。采用磁脉冲焊接方法制备了几种不同类型的搭接接头。实验结果与仿真结果吻合较好。

项目成果

アルミニウム板の高速衝撃圧着時のメタルジェット放出挙動

铝板高速冲击压接过程中金属射流发射行为

• 发表时间: 2010
• 作者: 柿崎正悟;渡邉満洋;熊井真次
• 通讯作者: 熊井真次

Microstructure and join strength of similar- and dissimilar lap joints fabricated by several advanced solid-state welding methods

采用几种先进固态焊接方法制造的同种和异种搭接接头的显微组织和连接强度

• 发表时间: 2010
• 期刊: Materials Science Forum
• 作者: Shinji Kumai;Mitsuhiro Watanabe;Keyan Feng
• 通讯作者: Keyan Feng

衝撃圧着時のメタルジェット放出および波状界面形態に及ぼす接合材の密度差の影響

冲击压接过程中粘接材料密度差对金属射流发射和波状界面形貌的影响

• 发表时间: 2011
• 作者: 柿崎正悟;澤裕也;熊井真次
• 通讯作者: 熊井真次

Microstructure and Joint Strength of Similar- and Dissimilar Lap Joints Fabricated by Several Advanced Solid-State Welding Methods

• DOI: 10.4028/www.scientific.net/msf.654-656.596
• 发表时间: 2010-06
• 期刊: Materials Science Forum
• 作者: S. Kumai;Mitsuhiro Watanabe;Keyan Feng

衝撃圧着時に形成される波状界面形態に及ぼす接合材板厚の影響

粘合材料板厚度对冲击压接过程中形成的波状界面形态的影响

• 发表时间: 2011
• 作者: 澤裕也;柿崎正悟;熊井真次
• 通讯作者: 熊井真次