Semi-solid Pressing Bonding Strength between Steel and Cu-graphite Composite

材料科学技术（英文）, 2005, 21(2): 265-268.

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1.Department of Mechanical Engineering, Northern Jiaotong University, Beijing 100044, China

2.Department of Mechanical Engineering, Northern Jiaotong University, Beijing 100044, China

3.Department of Mechanical Engineering, Northern Jiaotong University, Beijing 100044, China

4.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

5.Department of Metal Forming, Northeasten University, Shenyang 110004, China

6.Anshan Automobile Fittings Factory, Anshan 114014, China

基金项目: the Beijing Jiaotong University Foundation 国家自然科学基金(50274047 and 50304001)

Semi-solid Pressing Bonding Strength between Steel and Cu-graphite Composite

Keywords： Steel-mushy QTi3.5-3.5graphite bonding

The pressing bonding of steel plate with QTi3.5-3.5graphite slurry was studied. The relationship among preheating temperature of steel plate, preheating temperature of dies, solid fraction of QTi3.5-3.5graphite slurry, and interfacial shear strength of bonding plate could be established with artificial neural networks perfectly. This model could be optimized with a genetic algorithm. The results show that the optimum bonding parameters are: 618℃ for preheating temperature of steel plate, 526℃ for preheating temperature of dies and 46.2% for solid fraction of QTi3.5-3.5graphite slurry, and the largest interfacial shear strength of bonding plate is 128.3 MPa.

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Semi-solid Pressing Bonding Strength between Steel and Cu-graphite Composite

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