Translated Titles

A New Manufacture Process of the Mould for Matrix PDC Bits


周龙昌(Long-Chang Zhou)

Key Words

胎体PDC钻头 ; 模具 ; 成型工艺 ; matrix PDC bit ; mould ; modeling technique



Volume or Term/Year and Month of Publication

33卷2期(2005 / 02 / 01)

Page #

27 - 28

Content Language


Chinese Abstract


English Abstract

This article introduces a new manufacture process of the sintered mould for matrix PDC bits by using laser rapid modeling technique, rubber mold forming technique and kaolin powder modeling technique. PDC bits with complex structure can be made with the new process. And the manufacturing accuracy of the bit can be improved greatly with the angle error of the cutter teeth less than 0.1 degree, its height error less than 0.15mm, and the gutter position error less than 0.1mm. The product development cycle is shortened remarkably using the new process. Field application shows that, the average footage of the new PDC bit increased by 16.85% compared with that of the bit made by pressing forming process, and the penetration rate increased by 11.65%.

Topic Category 工程學 > 機械工程
工程學 > 礦冶與冶金工程