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在材料科学领域内,用复合材料制造的各种双金属零件在日益增多。关于双金属的研究,国外已有五十多年的历史了,材料及工艺都已比较成熟并迅速地向前发展。国内发展也是相当快的。现有双金属材料的种类很多,如铝—铁、铝—钢、钢—铜、球墨铸铁—巴氏合金,或者金属材料与非金属材料复合。复合材料工件的成形工艺方法大致可分为以下几种:金属型铸造、低压铸造、液态挤压、轧制法、熔融金属法、
In the field of materials science, the amount of bimetallic parts made of composite materials is increasing. About bimetallic research, foreign countries have more than 50 years of history, materials and technology are more mature and rapid development. Domestic development is also quite fast. There are many types of existing bimetallic materials, such as aluminum-iron, aluminum-steel, steel-copper, ductile iron-babbitt, or a combination of a metal material and a non-metal material. Composite workpiece forming process can be broadly divided into the following categories: metal casting, low pressure casting, liquid extrusion, rolling method, the molten metal method,