A method and device for electrolytic-magnetic grinding composite smoothing hard materials

Abstract

The invention discloses a method and a device thereof for electrolytic-magnetic grinding composite smoothing of hard materials. The steps of the method include: setting the DC power supply voltage of the electrolytic-magnetic composite grinding device to be 8-20V, and the electrolyte solution to be a sodium nitrate solution with a concentration of 12-20%; installing the electrodes and magnetic poles on the machine tool, turning on the DC power supply and the machine tool Fine grinding; replace the sintered magnetic abrasive for ultra-fine grinding. The device adopted in the method includes an electrolytic-magnetic grinding composite mechanism and an electrolyte supply mechanism, and the electrolytic-magnetic grinding composite mechanism includes: a workbench, a workpiece, a magnetic pole, a fixture, a machine tool, a connecting rod, magnetic abrasive particles, a passivation film, and a DC power supply and electrodes; the electrolyte supply mechanism includes: delivery pipe, peristaltic pump, filter, stirrer and electrolyte. The invention combines the electrolytic polishing process and the magnetic grinding process, exerts their respective advantages, and remarkably improves the grinding process efficiency and the surface quality of the workpiece.

Description

technical field [0001] The invention belongs to the field of precision machining of hard material parts, in particular to an electrolysis-magnetic grinding composite lightening method and device for hard materials. Background technique [0002] Important parts in important industries such as aerospace and shipbuilding are mostly made of cemented carbide materials, such as nickel-based high-temperature nickel alloys, titanium alloys, etc. The surface quality of these parts affects the performance and service life of the entire mechanical system. The traditional grinding process is difficult to complete the uniform and precise polishing of the surface. As a non-traditional precision machining method, the magnetic grinding process uses magnetic abrasive particles, which have the advantages of good flexibility and self-sharpening, and can be attached to the surface of the workpiece by profiling and can be The shape changes, and the adaptability of the workpiece is strong, espe...

AI Technical Summary

Problems solved by technology

Therefore, for hard materials, the loss of magnetic abrasive particles is large, and the processing efficiency of magnetic grinding process is low, which is difficult to meet industrial requirements.

[0003] Electrolytic machining is not affected by the hardness of the workpiece material. It is suitable for the processing of most metals and alloy materials, and the processing efficiency is high. However, electrolytic machining requires many elements to be controlled and real-time monitoring cannot be achieved.

Images