公开(公告)号：US20210107109A1

公开(公告)日：2021-04-15

申请号：US17023012

申请日：2020-09-16

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Fuji WANG ,  Jianbo YAN ,  Meng ZHAO ,  Boyu ZHANG ,  Rao FU ,  Wei LIU ,  Jianwei MA ,  Zhenyuan JIA

IPC: B24B3/32

Abstract: A method for machining a drill with tilting blade slot structures for composite machining is provided. In the machining method, a face of the drill produces a downward component force for the inlet material to inhibit the inlet material from turning up; and a cutting edge inclination of an end surface at an outer turning point in a corner region of the drill is a positive value. The face and a flank are firstly partially ground in the corner region of the drill. The face at the outer turning point is ground with a grinding wheel to obtain two tilting blade slot structures. After grinding, a new face and a new cutting edge are obtained; and the cutting edge inclination on the end surface formed by the new cutting edge and a reference plane is a positive angle.