随着科学技术飞速向前发展,金属切削基础理论的研究工作在国内外愈来愈受到重视,有些国家甚至不惜代价地投入了大量的人力、物力从事这方面的研究工作。这是因为金属切削加工在机械制造业中占有很大的比重和极其重要的地位。要提高金属切削的劳动生产率、降低生产成本、解决难 With the rapid development of science and technology, the research work on the basic theory of metal cutting has been paid more and more attention at home and abroad. Some countries even devote a great deal of manpower and material resources to the research in this field at any cost. This is because metal cutting in the machinery manufacturing occupies a large proportion and extremely important position. To improve the labor productivity of metal cutting, reduce production costs, solve the problem