Dissimilar Joining of Magnesium Alloy and Steel by Resistance Spot Welding
抵抗スポット溶接によるMg合金と鋼との異種材接合
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20115514
- Paper/Info type
- Proceedings (Autumn)
No.113-11
- Pages
- 5-10(Total 6 p)
- Date of publication
- Oct 2011
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Author(J) | 1) 宮本 健二, 2) 中川 成幸, 3) 坂元 宏規, 4) 岩谷 信吾, 5) 北條 慎治, 6) 立花 隆浩, 7) 小椋 智, 8) 廣瀬 明夫, 9) 小林 紘二郎 |
|---|---|
| Author(E) | 1) Kenji Miyamoto, 2) Shigeyuki Nakagawa, 3) Hiroki Sakamoto, 4) Shingo Iwatani, 5) Shinji Hojo, 6) Takahiro Tachibana, 7) Tomo Ogura, 8) Akio Hirose, 9) Kojiro Kobayashi |
| Affiliation(J) | 1) 日産自動車, 2) 日産自動車, 3) 日産自動車, 4) 大阪大学, 5) 大阪大学, 6) 大阪大学, 7) 大阪大学, 8) 大阪大学, 9) 若狭湾エネルギー研究センター |
| Abstract(J) | CO2の更なる削減を目指し、車両の大幅な軽量化が求められている。そのためには鋼やAl合金、Mg合金などの材料の特質を利用したマルチマテリアル車体が有効であり、異種材の接合技術が重要となる。本研究では、亜鉛めっき鋼板とMg合金を、従来の抵抗スポット溶接を用いて接合し、接合界面観察および強度評価を行った。 Translation |
| Abstract(E) | Recently, there are strong demands for lightweight, fuel-efficient cars. An effective joining technique to join light metals, such as aluminum and magnesium alloys, with steel is required. However, magnesium alloy and steel are especially difficult pair of metals to join. Due to not only magnesium alloy's surface oxide, but also their phase separating nature, magnesium and steel do not form an intermetallic at the joint interface. We aimed to join such magnesium alloy and steel by using Zn-Mg eutectic reaction and Al content in magnesium alloy; Zn layer was inserted between magnesium alloy and steel as plating on steel. The experiment was performed using a conventional resistance spot welding machine, and joint strength was evaluated by tensile strength tests. It was found that magnesium alloy surface oxide are removed along with eutectic melt at low temperature, and at the same time, thin and uniform intermetallic layers of Fe-Al and Al-Mg were formed at the joint interface. |
