The principal target of this paper is to contemplate the impact of working parameters of ultrasonic machining (USM) of tungsten carbide (WC) on the machining qualities like MRR and SR. The viability of the ultrasonic machining process with tungsten carbide is assessed as far as the material evacuation rate and the surface complete nature of the work piece created. Tungsten carbide as a super hard and high wear-safe material has been utilized broadly in enterprises. Dark social examinations are connected to decide the reasonable determination of machining parameters s. The Gray hypothesis can give an answer of a framework in which the model is uncertain or the data is inadequate. In addition, it gives a proficient answer for the vulnerability, multi-input and discrete information issue. As indicated by the Taguchi quality outline idea, a L9 orthogonal array. In this investigation, the impact of different information parameters; Abrasive size , Amplitude of vibration, recurrence of vibration viz., metal expulsion rate (MRR), Surface Roughness (SR) are examined.Social examination and investigation of difference (ANOVA) have been performed to upgrade the levels of info parameters.