Research on One-Time Forming Process of Matrix PDC Bits
Zhong Liang Wei, Hang Wen, Qing Lin He, Jin Mei Sun · Advanced materials research · 2010
Due to the difficulty in the ceramic mould forming process of matrix PDC bits and low production efficiency, a manufacturing mould technology of graphite powder forming process was developed. The technical program is to formulate a circuit of silicone rubber forming process, determine the forming process of first mould, rubber mould and graphite powder mould, and sinter bit. The results show that manufacturing bit mould to sinter PDC bits with this method can simplify the circuit, increase production efficiency, and improve bit quality. The resulting bit is also of high precision, exquisite appearance and good consistency