关键词: 混合控制策略, 挤压工步分析, 知识库, 专家系统, 超声相控阵, 电子扫查, 井壁成像检测

Abstract: A method of hybrid inference based on forward inference and backward inference strategies is achieved in designing extrusion step analysis expert system. The results show that the hybrid inference method can increase the reliability of the initial forming plan selection and improve the system’s inference efficiency. A mechanism of technology analysis-parameter optimization-drawing unit is realized. The knowledge-base is designed in an open-style way, and every specific rule-base is combined with base rule-base. A friendly man-machine interface is designed by use of Visual C++.

Key words: Extrusion step analysis, Expert system, Hybrid inference strategy, Knowledge base, borehole imaging, electronic scanning, ultrasonic phased array