Study on Viscosity and Resistance Reduction of Clay Extrusion from Ceramic Clay Trainer Based on Axial Ultrasonic Vibration
Aiming at the problems on the surface and inside of the clay extruded from the ceramic clay trainer,this paper adds the axial ultrasonic vibration generated by piezoelectric ceramics to the extruding screw reamer shaft of the ceramic clay trainer to realize the effect of viscosity and resistance reduction in the process of extruding clay by the machine.By analyzing the motion mechanism of the clay,we use SolidWorks software to establish a three-dimensional model of the clay,and then contuct a simula-tion analysis of the three-dimensional model after being put in COMSOL finite element analysis software.The results show that applying axial ultrasonic vibration to the extrusion screw reamer shaft of the ceramic clay trainer can reduce the adhesion resis-tance between the ceramic clay and the reamer and the shaft surface,reduce the average velocity gradient of the clay,and increase the average velocity.When the vibration frequency is 24 kHz and the amplitude is 0.6 mm,the average velocity gradient of the extruded clay is reduced by 37.42％,and the average velocity is increased to 0.0161 m/s,which is a fairly obvious effect of vis-cosity and resistance reduction.
ceramic clay traineraxial ultrasonic vibrationviscosity and resistance reductionceramic clay
万方数据
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