4月19～21日中国机械工程学会生产工程分会切削专业委员会在北京理工大学召开了“’97全国金属切削技术与刀具学术研讨会”。参加会议的有来自大专院校、科研院所、工厂企业等单位的专业工作者五十余人，会上宣读和交流了论文46篇。北京理工大学于启勋教授宣读的论文“现代刀具 April 19 ~ 21Chinese Mechanical Engineering Society Production Engineering Branch cutting professional committee held in Beijing Institute of Technology, “’97 national cutting technology and cutting tool academic seminar.” More than 50 professional workers from universities, research institutes, factories, factories and other units attended the conference and read and exchanged 46 papers at the conference. Beijing Polytechnic University Professor Yu Qixun read the paper, "Modern Tool