热处理对3D打印GT35RE搅拌头性能的影响分析  

Effect of Heat Treatment on Properties of GT35RE Stirring Head by 3D Printing

作　　者：陈峥[1] 刘峥[1] 

机构地区：[1]重庆工业职业技术学院机械工程学院,重庆401120

出　　处：《热加工工艺》2014年第22期197-199,共3页Hot Working Technology

摘　　要：采用不同的工艺对3D打印GT35RE搅拌头进行热处理,并进行了表面硬度、耐磨损性能和抗疲劳性能的测试和分析。结果表明,热处理可以有效提高3D打印GT35RE搅拌头的表面硬度、耐磨损性能和抗疲劳性能。与未经热处理相比,淬火前预热、二次回火和时效相结合的热处理可使其(20±3)℃磨损体积减小74.16%,(200±3)℃磨损体积减少82.31%,(20±3)℃表面硬度增大9.9 HRC,(200±3)℃表面硬度增大21.1 HRC,而且可使疲劳裂纹更细、更少。GT35RE stirring head by 3D printing was heat treated with the different processes. And the surface hardness,wear resistance and fatigue resistance were tested and analyzed. The results show that heat treatment can enhance the surface hardness, wear resistance and fatigue resistance of GT35 RE stirring head by 3D printing. In comparison with the samples without heat treatment, the sample after heat treatment can make wear resistance at（20±3）℃ decreases by 74.16%, make wear resistance at（200 ±3）℃ decreases by 82.31%, make surface hardness at（20 ±3）℃ increases by 9.9 HRC, make surface hardness at（200±3）℃ increases by 21.1 HRC, and make the fatigue cracks less and smaller.

关 键 词：热处理 3D打印 GT35RE搅拌头 性能 影响 

分 类 号：TG156.3[金属学及工艺—热处理]