Experimental investigation of material removal mechanism in grinding of alumina by single grain scratch test
Alumina is a material that is frequently used in high performance applications.Grinding of alumina is usually associated with micro-cracks which deteriorate surface quality.In order to get a deeper knowledge of the characteristics of material removal mechanisms in alumina during grinding with and without ultrasonic vibration of the workpiece,single grit scratch tests were performed in this research.The effect of the ultrasonic vibrations and cutting speed on the material removal mechanism of alumina was investigated in the chip thickness range of 0.5-3 μm which is common in precision grinding operations.It was shown that the material pile-up decrease with higher cutting speed.On the other hand,the transition from ductile to brittle mode of material removal occurs earlier in higher cutting speeds.The ultrasonic vibrations showed great influence in the cutting speed 30 m/s in reducing the pile-up values.
Grinding single grit scratch test ultrasonic assisted grinding material removal mechanism alumina ceramic
T.Tawakoli H.Kitzig R.-D.Lohner
Institute of Grinding and Precision Technology(KSF),Furtwangen University,Villingen-Schwenningen 78054,Germany
国际会议
杭州
英文
96-102
2013-09-23（万方平台首次上网日期，不代表论文的发表时间）