Development of Warm Forging Method for Magnesium Alloy
スポンサーリンク
概要
- 論文の詳細を見る
A new warm forging method for magnesium alloys is proposed by taking their material properties into consideration. Since the ductility of Mg alloys is low at room temperature, the forging operation is conducted in the temperature range of 200—400°C. In the warm forging of Mg alloys, the billet is easily cooled down in the die cavity before the onset of forging due to high thermal conductivity. This problem is solved by heating the billet with high-temperature tools. Since the flow stress of Mg alloys exhibits a significant work softening phenomenon, a very high load tends to appear at the beginning of the forging process. In order to reduce the peak forging load, a new concept of billet shape is proposed; the shape is so chosen that pre-straining is caused without restraining the flow in the early stage of the process and then die filling is attained with a low flow stress. In this study, the proposed warm forging method is confirmed to be valid through finite element simulation and experiment using a servo-controlled press.
- The Japan Institute of Metals and Materialsの論文
The Japan Institute of Metals and Materials | 論文
- Control of Ferromagnetism in Magnetic Semiconductors and Application for Spin-polarized Electron Source
- 超高純度金属の実用化への道
- 非極性 GaN 層中の微結晶粒の効率的な検出と今後の展望
- Recycling Technology for Platinum Group Metals by Using Perovskite-type Oxides
- Specimen Preparation Methods with FIB for In-Situ TEM Observations in Materials Science—TEM Specimen Preparation by FIB with Glass Manipulator—