A method for preparing an ordered microgroove structure multilayer superabrasive electroplated grinding wheel

Abstract

The invention discloses a method for preparing an ordered micro-groove structure multilayer superhard abrasive electroplating grinding wheel. The preparation method is as follows: firstly, polyvinyl alcohol glue is coated on the outer circumference of the grinding wheel hub and dried to form a polyvinyl alcohol adhesive layer, and an ordered micro-groove array is processed on the adhesive layer by micro-water jet laser processing technology, and then injected into the micro-groove Inject molten polyethylene and cool it into a polyethylene insulating sheet, completely dissolve the polyvinyl alcohol adhesive layer in boiling water and leave an array of polyethylene insulating sheets, then electroplate multiple layers of superabrasives on the hub of the grinding wheel, and finally put the grinding wheel into the heating furnace The polyethylene insulating sheet is melted off to form a multi-layer superhard abrasive electroplating grinding wheel with an ordered micro-groove structure. The micro-groove processing technology of the present invention prevents heat-affected zones from appearing on the working surface of the grinding wheel hub, and after electroplating multi-layer abrasives, a large number of micro-grooves with large aspect ratios can be maintained between the abrasive layers arranged in an orderly manner. The structure and size are consistent, which greatly improves the chip removal and cooling performance of the grinding wheel, and prolongs the life of the grinding wheel.

Description

technical field [0001] The invention relates to a preparation method of a grinding wheel, in particular to a preparation method of an ordered micro-groove structure multilayer superhard abrasive electroplated grinding wheel. 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 difficult for the grinding fluid to enter ...

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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