摘要
采用不同工艺对3D打印小型3Cr2W8V钢模具进行了热处理,并进行了耐磨损性能和热疲劳性能测试与对比分析。结果表明:热处理有利于提高3D打印3Cr2W8V钢模具的耐磨损性能和热疲劳性能,优选的热处理工艺为:150 MPa/350℃×1 h热等静压处理后500℃×2 h热处理的复合热处理。与未经热处理的模具相比,复合热处理能使模具的25℃磨损体积减小75%,350℃磨损体积减小82%,热疲劳裂纹级别从9级变为3级。
The heat treatment of 3D printing small-scale 3Cr2W8V die was carried out by using different processes, and the wear resistance and thermal fatigue property were tested and comparatively analyzed. The results show that heat treatment is beneficial to improve the wear resistance and thermal fatigue property of 3D printing 3Cr2W8V steel die. The optimized heat treatment process is the compound heat treatment of high temperature inso-static pressing （150 MPa/350 ℃ ×1 h） and then heat treatment of 500 ℃ ×2 h. Compared with die without heat treatment, the compound heat treatment can reduce the 25 ℃ wear volume of the die by 75%, 350 ℃ wear volume of the die reduces by 82%, and the thermal fatigue crack level changes from 9 level to 3 level.
出处
《热加工工艺》
CSCD
北大核心
2017年第10期210-212,共3页
Hot Working Technology
基金
国家社会科学基金规划课题(CJA100148)
