Abstract:The effect of sintering temperature and holding time on the microstructures and mechanical properties of WC–10%Co cemented carbide during spark plasma sintering process was investigated. The results indicated that the densities and hardness were enhanced with the increase of sintering temperature from 1200℃ to 1350℃. The densities and hardness enhanced first and then decreased with the increase of holding time from 3min to 9min at 1350℃. The density of cemented carbide arrived maximum value of 99.3%, as well as the hardness of 2212HV at the sintering parameters of 1350℃ and 6min. The three-edged tool with high quality was sintered at the optimum parameters. The density and harness of the tool were 99.2% and 2232HV, respectively.
王国峰,刘青,石文展,李丹峰. 超细晶WC–10%Co硬质合金三刃刀具放电等离子烧结工艺研究[J]. 航空制造技术, 2020, 63(3): 86-91.
WANG Guofeng, LIU Qing, SHI Wenzhan, LI Danfeng. Investigation on Spark Plasma Sintering Process of Ultra-Fine Grained WC–10%Co Cemented Carbide Three-Edged Tool. Aeronautical Manufacturing Technology, 2020, 63(3): 86-91.