基于车磨试验台的超高速陶瓷CBN砂轮研究  

Study on ultra-high speed vitrified bonded CBN wheel based on cutting and grinding test-bed

作　　者：庞子瑞[1] 刘晓玲[2] 李建壮[2] 蔡光起[1] 

机构地区：[1]东北大学机械工程学院,沈阳110004 [2]黄河水利职业技术学院,开封475004

出　　处：《金刚石与磨料磨具工程》2006年第6期52-55,58,共5页Diamond & Abrasives Engineering

基　　金：教育部科学技术研究重点项目(104190)

摘　　要：本文论述了一个用于超高速磨削试验的陶瓷CBN砂轮的研制过程。通过ANSYS分析我们发现,对于砂轮基盘的材料,钛合金是本次试验最佳的选择;锥形是砂轮形状最佳的选择。基于分析结果和试验台的限制得出了砂轮基盘的精确截型。而且,根据试验数据,我们选择了30%的高韧性CBN500和70%的中等韧性CBNⅠ混合磨料及一种低温高强陶瓷结合剂。通过810℃烧结温度得到了理想的砂轮贴片。并经良好的粘结技术制出了用于200m/秒超高速磨削试验的CBN砂轮。最后,该砂轮的良好磨削性能得到了验证。Manufacturing process of vitrified CBN wheel for 200m/s grinding was described.Titanium alloy was considered fit for the wheel core and taper type was the best shape for ultra-high speed wheel by ANSYS analysis.The precision section of wheel core was designed based on the result of ANSYS analysis and the restriction of the test-bed.According to the tests data,mixed abrasive grains were selected,that is high toughness CBN500(30%) and medium toughness CBNⅠ(70%),and an low temperature high strength vitrified bond was chosen.Excellent CBN segments were obtained by reasonable sintering temperature of 810℃.Expected CBN wheel for 200m/s grinding was made via appropriate adhesion.The grinding performance of the wheel was proved excellent.

关 键 词：超高速磨削 陶瓷CBN砂轮 ANSYS分析 磨削性能 

分 类 号：TG74[金属学及工艺—刀具与模具]