热处理对数控机床主轴性能影响的分析  

Analysis of Effects of Heat Treatment on Property of Numerical Control Machine Spindle

作　　者：谢芳[1] 

机构地区：[1]河南职业技术学院,河南郑州450046

出　　处：《铸造技术》2013年第10期1293-1295,共3页Foundry Technology

摘　　要：采用不同的热处理工艺对数控机床主轴9Mn2V进行处理,并进行了耐磨性、抗冲击性和抗热疲劳性测试和分析。结果表明,与常规球化退火相比较,采用分级球化退火试样的磨损体积减少了22.13%、剪切断面率增加了6%、冲击吸收功增加了7.3 J、热疲劳主裂纹从6级变为5级,主轴的耐磨性、抗冲击性和抗热疲劳性得到提高;与常规冷却相比较,在调质淬火冷却过程中采用等温处理试样的磨损体积减少了12.5%、剪切断面率增加了5%、冲击吸收功增加了3.3 J、热疲劳主裂纹从5级变为1级,有利于提高主轴的耐磨性、抗冲击性和抗热疲劳性。The numerical control machine spindle of 9Mn2V steel was treated by the different processes of heat treatment, and the wear resistance, impaction resistance and thermal fatigue resistance were tested and analyzed. The results show that in comparison with normal spheroidization annealing, grade annealing can make the wearing volume of the samples be decreased by 22.13%, ductile fracture surface increased by 6%, impact energy increased by 7.3J, and the thermal fatigue major crack change from grade 6 to grade 5; the wear resistance, impaction resistance and thermal fatigue resistance of the 9Mn2V spindle were improved. Moreover, compared with normal cooling, isothermal treatment in the quenching cooling of thermal refining can make the wearing volume be decreased by 12.5%, ductile fracture surface increased by 5%, impact energy increased by 3.3J, and the thermal fatigue major crack change from grade 5 to grade 1, and 9Mn2V numerical control machine spindles are with better wear resistance, impaction resistance and thermal fatigue resistance.

关 键 词：数控机床主轴 9Mn2V 热处理 性能 

分 类 号：TG162[金属学及工艺—热处理] TG659[金属学及工艺—金属学]