标题：A new type of non-chisel-edge shallow-drill for machining high manganese steel
作者：Han, YP; Meng, JF; Zhou, JQ
作者机构：[Han, YP; Meng, JF; Zhou, JQ]Shandong Univ, Sch Mech Engn, Jinan 250061, Peoples R China.;[Han, YP; Meng, JF; Zhou, JQ] Laiyang Agr Coll, La 更多
会议名称：11th International Manufacturing Conference in China
会议日期：SEP 18-20, 2004
来源：ADVANCES IN MATERIALS MANUFACTURING SCIENCE AND TECHNOLOGY
关键词：non-chisel-edge drill; machining; high manganese steel
摘要：A new type of non-chisel-edge shallow-drill is developed for machining high manganese steel, which is a typical hard-to-machine material. The marked characteristic of the drill is that the cutting edge is non-chisel-edge, consisting of a section of straight line and a part of curve nearby the center. The characteristics of machining performance of this drill are analyzed. Measures adopted in design for improving cutting performance and prolonging tool life are also presented. Applied example indicates that this new drill has good cutting performances and long life. Compared with common twist drill, the axial thrust cutting force of this tool is reduced 30similar to50 percent.