Study on Electrolytic-Abrasive Sphere Finishing

Abstract

Based on the principle of sphere generating and Electrolytic-Abrasive Machining (EAM), a new EAM method —Electrolytic-Abrasive Sphere Finishing is developed. In the experiments, the tubular cathode is covered by unwoven nylon cloth, and the abrasive grains are provided together with electrolyte which flows through the tool electrode. This paper chiefly clarifies the features of this method, the selecting bases for the running specifications and the ways to control low current density. The experimental results show that the pulse current is conducive to paucity of metal removal, and mirror or quasi-mirror finish can be achieved conveniently.

Experimental Study on Rotary Ultrasonic Machining of SiCp/Al Composite

“…RUM can reduce grinding force and grinding heat and change machinability, so it can effectively prevent grinding wheel jams, surface burning, side damage, and cracks. Surface damage and residual stress of part are very small and surface quality of part is excellent [11][12].…”

Lapping of WC-Co Cemented Carbide Ball by Eccentric Dual-Rotating V-Groove Lapping Mode

“…But the WC-Co cemented carbide balls are hard to lapping, and the suitable lapping mode hasn't found, now several novel lapping modes were developed to improve the finishing process of WC-Co cemented carbide balls, including the spin angle control lapping mode [2], magnetic fluid lapping mode [3][4], but they are difficult to be applied in real production, and the ball sphericity also can't be lapped uniformly. Now eccentric dual rotating (EDR) V-groove lapping mode [6] developed by the authors, as shown in Fig. 1.…”