Investigation on Spark Plasma Sintering Process of Ultra-Fine Grained WC–10%Co Cemented Carbide Three-Edged Tool

WANG Guofeng; LIU Qing; SHI Wenzhan; LI Danfeng

doi:10.16080/j.issn1671-833x.2020.03.086

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Investigation on Spark Plasma Sintering Process of Ultra-Fine Grained WC–10%Co Cemented Carbide Three-Edged Tool

更新时间：2026-04-17

- Investigation on Spark Plasma Sintering Process of Ultra-Fine Grained WC–10%Co Cemented Carbide Three-Edged Tool
- Aeronautical Manufacturing Technology Vol. 63, Issue 3, Pages: 86-91(2020)
- 作者机构：
  
  哈尔滨工业大学材料科学与工程学院,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2020.03.086
  CLC：
- Published：2020
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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.
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. DOI： 10.16080/j.issn1671-833x.2020.03.086.

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. DOI： 10.16080/j.issn1671-833x.2020.03.086.

摘要

利用真空放电等离子烧结技术实现了超细晶 WC–10%Co 硬质合金块体材料的制备，研究了烧结温度和保温时间对硬质合金微观组织和力学性能的影响规律。试验结果表明：当烧结温度从 1200℃ 升高至 1350℃ 时，硬质合金的致密度和维氏硬度均逐渐增大；在 1350℃，保温时间从 3min 延长至 9min 时，硬质合金的致密度和维氏硬度均先增大后减小。在烧结温度为 1350℃，保温时间为 6min 时，致密度最高为 99.3%，维氏硬度为 2212HV。在 1350℃、轴向压力 30MPa、保温 6min 最佳烧结工艺参数下，制备了高质量复杂形状硬质合金三刃刀具，刀具致密度为 99.2%，硬度为 2232HV

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.

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