Grinding Parameter Optimization of Ultrasound-Aided Electrolytic in Process Dressing for Finishing Nanocomposite Ceramics

Abstract

In order to achieve the precision and efficient processing of nanocomposite ceramics, the ultrasound-aided electrolytic in process dressing method was proposed. But how to realize grinding parameter optimization, that is, the maximum processing efficiency, on the premise of the assurance of best workpiece quality is a problem that needs to be solved urgently. Firstly, this research investigated the influence of grinding parameters on material removal rate and critical ductile depth, and their mathematic models based on the existing models were developed to simulate the material removal process. Then, on the basis of parameter sensitivity analysis based on partial derivative, the sensitivity models of material removal rates on grinding parameter were established and computed quantitatively by MATLAB, and the key grinding parameter for optimal grinding process was found. Finally, the theoretical analyses were verified by experiments: the material removal rate increases with the increase of grinding parameters, including grinding depth (ap), axial feeding speed (fa), workpiece speed (Vw), and wheel speed (Vs); the parameter sensitivity of material removal rate was in a descending order asap>fa>Vw>Vs; the most sensitive parameter (ap) was optimized and it was found that the better machining result has been obtained whenapwas about 3.73 μm.

Ultrasonic assisted machining of gears with enhanced fatigue resistance: A comprehensive review

“…32 During the processing, the tool vibration causes the abrasive particles held in the slurry between the tool and workpiece to impact the workpiece surface causing material removal by micro-chipping. 33 Combined with the conventional machining processes, various compound process technologies with ultrasonic vibration have been developed, [34][35][36] as shown in Figure 7.…”

Mechanism of online dressing for micro-diamond grinding wheel during the ultrasound-aided electrolytic in-process dressing grinding

“…The method would improve the finishing effect of the grinding wheel in the realization of online dressing, increase machining efficiency and quality of the grinding wheel, and finally results in an efficient mirror continuous finishing technique. [20][21][22] However, the effect of the additional ultrasonic on the online dressing for grinding wheel has not been fully studied. Therefore, this paper will carry out research in this area, in order to obtain a breakthrough and to promote the further development of the ultrasonic ELID composite grinding technology.…”