Tian Yongchang1, Yang Zhan2
(1. Graduate school, China University of Geosciences, 430074
2. School of mechanical and electronic Engineering, China University of Geosciences, 430074)
Abstract Iron-plating technology used for restoration of axis parts has been applied to the manufacture of diamond bits in this paper. The technology for electroplating diamond bit with iron matrix has been mastered through repeated experiments and research. The productive practice indicated that the DC-electroplated iron matrix of diamond bit has high hardness and good diamond exposure ability; the drilling rate of electroplated iron-based diamond bit was 2 m/h when drilling 9-grade granite and the bit life can reach 44 m, which can meet the drilling production requirements.
Keywords iron-based matrix; electroplating; diamond bit