Multi-layer super-hard abrasive electroplated grinding wheel with orderly microgroove structure, and preparation method thereof

Abstract

The invention discloses a multi-layer super-hard abrasive electroplated grinding wheel with an orderly microgroove structure, and a preparation method thereof. The multi-layer super-hard abrasive electroplated grinding wheel with the orderly microgroove structure is characterized in that a large number of electroplated super-hard abrasive layers containing multiple layers of abrasives are orderlyarranged on an outer circumference of a grinding wheel hub, and a microgroove with the width being only dozens of microns, the depth being hundreds of microns, the length being equal to the thicknessof the grinding wheel, and the gap being hundreds of microns is formed between each two adjacent abrasive layers. The preparation method comprises the steps of coating a polyvinyl alcohol glue on theouter circumference of the grinding wheel hub, drying to form a glue layer, adopting a laser microjet technology for processing a groove array on the glue layer, injecting smelted polyvinyl alcohol into grooves, cooling to form insulation strips, dissolving the glue layer in boiling water, electroplating the multiple layers of abrasives, and finally smelting and removing the insulation strips. Thegrinding wheel provided by the invention favorably solves the problems that the grinding wheel is easy to block, a grinding fluid is hard to enter a grinding area, and each two adjacent abrasive layers are easy to lap and poor in structure consistency when the multiple layers of abrasives are electroplated, so that workpieces are prevented from burning, the grinding efficiency and the service life of the grinding wheel are improved, and the grinding quality is ensured.

Description

technical field [0001] The invention relates to a structure of a grinding wheel and a preparation method thereof, in particular to a multi-layer superhard abrasive electroplated grinding wheel with an ordered micro-groove structure and a preparation method thereof. Background technique [0002] As one of the most widely used processing technologies in the field of mechanical manufacturing today, grinding has important applications in precision and ultra-precision machining. The traditional single-layer abrasive electroplated grinding wheel cannot be trimmed. It is necessary to increase the thickness of the coating to increase the holding force of the coated metal to the abrasive, which will reduce the height of the abrasive blade and the chip space, and easily block the grinding wheel. The heat dissipation effect is poor, which intensifies the grinding The generation and accumulation of cutting heat and the close contact between the grinding wheel and the workpiece make it d...

AI Technical Summary

Problems solved by technology

However, this method uses a double-layer composite mask as the electroplating mask, and the shape of the abrasive group formed by electroplating is difficult to control, resulting in the shape of the abrasive group formed by composite electroplating as a stepped shape with a narrow top and a wide bottom, which increases the interval between abrasive groups. , the fluctuation of the contact area between the grinding wheel and the workpiece increases, and there may be a large vibration during the grinding process, resulting in a decrease in the surface quality of the workpiece

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