第五届全国塑性加工理论及新技术开发学术会议于1991年9月4～8日在秦皇岛燕山大学召开。来自全国高等院校、科研及设计院所、工厂共42个单位的84名代表参加了会议。会前征集并印刷了《论文集》,会间共交流78篇论文。交流的论文主要特点是①塑性加工理论研究更紧密地与生产问题相结合:应用有限元、边界元、能量法、上界法等解决轧制中的问题很见成效;来自厂矿的既有理论水平又有实际数据的文章也受到好评。②理论研究有力的推动了新技术与新产品的开发。连铸连轧、异步轧制、H型钢轧机、双相不锈钢焊丝等均有成果。③理论研究促进了技术改 The Fifth National Conference on Plastic Processing Theory and New Technology Development was held on September 4-8, 1991 in Yanshan University, Qinhuangdao. Eighty-four representatives from 42 units of institutions of higher learning, research and design institutes and factories in the country attended the conference. Pre-meeting solicitation and printing of the “Proceedings,” a total of 78 papers were exchanged. The main features of the communication thesis are as follows: (1) The research on the theory of plasticity processing is more closely linked with the production problems: the application of finite element method, boundary element method, energy method and upper bound method to solve the problems in rolling works well; Articles that are level and informative are also well received. ② theoretical research has effectively promoted the development of new technologies and new products. Continuous casting and rolling, asynchronous rolling, H-beam mills, duplex stainless steel wire and so have results. ③ theoretical research to promote technological change