[Invention Announcement] A high-strength diamond drill bit and manufacturing method

Application Publication Number:CN112139565A
Application Publication Date:2020.12.29
Application Number:2020109160393
Application Date:2020.09.03
Applicant:Qidong County Fengsu Drilling Tools Co., Ltd.
Inventors:Zou Chao; Li Zhongyong; Chen Peng
Address:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600
Classification Number:B23B51/00(2006.01)I; 

Abstract:
This invention provides a high-strength diamond drill bit and its manufacturing method, related to the field of drill bit manufacturing. The high-strength diamond drill bit includes an integrated structure consisting of a tip, a drill body, and a supporting drill shank. The outer surface of the drill body is equipped with a second chip removal groove and chip-cutting edge, while the outer surface of the drill head has a first chip removal groove. The end face of the drill body centrally features a second axle core hole, surrounded by first axle core holes, inside which first axle cores are set. Inside the second axle core hole, a second axle core is set. The tip’s one side end face centrally has a third axle core hole, into which the second axle core extends. The end of the drill body, opposite to the supporting drill shank, is provided with a conical fixed slot. The design increases the usage strength of the drill body, thereby improving the lifespan of the drill bit.