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研究了用复合铸造和加压凝固法制备的ＳｉＣｐ／２Ａ１４Ａｌ复合材料的挤压性能，并利用热挤压工艺得到了复合型材和棒材，分析了挤压过程中三类挤压裂纹产生的原因及控制方法。ＳｉＣｐ／２Ａ１４Ａｌ复合材料具有很好的挤压加工性能，但挤压工艺参数的合理选择对复合材料的质量有很大的影响。
The extrusion properties of SiCp / 2A14Al composites prepared by compound casting and compression-solidification were studied. The composite profiles and rods were obtained by hot extrusion. The causes of three kinds of extrusion cracks were analyzed And control methods. SiCp / 2A14Al composites have good extrusion processability, but the reasonable choice of extrusion process parameters have a great impact on the quality of the composites.