A die-casting method for superhard grinding wheel with ordered micro-groove structure

Abstract

The invention discloses a die-casting molding method for a superhard grinding wheel with an ordered micro-groove structure. The method can prepare a grinding wheel with a large number of micro-groove structures arranged in an orderly manner on the outer circumference and uniformly distributed superhard abrasives; the specific preparation method is as follows: the grinding wheel The wheel hub is placed in a mold with a large number of grooves, and then the composite powder composed of uniformly mixed aluminum powder and superhard abrasive is poured into the mold, and the motor is started to rotate the turntable at a low speed, and the composite powder will fill the grooves of the mold under the action of centrifugal force; Then pour the molten aluminum into the mold, start the motor to rotate the turntable at high speed, the molten aluminum can overcome the capillary force and penetrate into the gap of the composite powder under the action of centrifugal force, and the aluminum powder absorbs the heat of the molten aluminum and melts; after the mold is fully cooled, it can be removed The superhard grinding wheel with ordered micro-groove structure was obtained. The invention makes the abrasive material more evenly distributed in the aluminum-based binder, improves the grinding efficiency and service life of the grinding wheel, and has strong process repeatability, low operation difficulty and high production efficiency.

Description

technical field [0001] The invention relates to a preparation method of an ordered micro-groove structure superhard grinding wheel, in particular to a die-casting forming method of an ordered micro-groove structure superhard grinding wheel. Background technique [0002] With the development of modern mechanical processing in the direction of high precision, high efficiency, and low consumption, higher requirements are placed on the performance of abrasive tools, and the grinding efficiency, grinding accuracy and wear resistance of superhard grinding wheels are high-speed precision The key issues in the grinding process, and the preparation process and production efficiency of the grinding wheel itself are increasingly concerned by the industry. The preparation method of superhard grinding wheels is usually cumbersome, and the superhard abrasives are often unevenly distributed, especially for grinding wheels with complex surface structures, such as superhard grinding wheels w...

AI Technical Summary

Problems solved by technology

However, since the abrasive layer separated by microgrooves tends to expand outward during the electroplating process, the number of abrasive layers of the grinding wheel should not be too many, and the aspect ratio of the formed microgrooves should not be too large, and the efficiency of the electroplating process is low. The micro-groove arrays must be processed one by one by laser, the production efficiency is low, and it is difficult to realize the large-scale and efficient production of superhard grinding wheels with ordered micro-groove structure

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