Experimental Study on Ultrasonic Assisted Helical Grinding of Sic/Sic Composites

With the gradual improvement of the speed of aircraft and automobiles, in order to ensure their safe braking, the requirements for new brake materials and the demand for processing methods are becoming more and more urgent. SiC/SiC composites have drawn a lot of interest because of their exceptional qualities, including high strength, high thermal stability, and low density. The goal of this study is to compare traditional helical grinding (CHG) with ultrasonic vibration aided helical grinding (UVAHG). The ABAQUS finite element simulation model of single abrasive cutting of UVAHG and CHG was established to analyze the stress distribution on the material under different processing methods. It can be seen from the experimental results that the effect of ultrasonic vibration can significantly improve the stress concentration and crack propagation defects during the machining process of the workpiece, and the surface quality of the machined surface has also been improved.