A kind of manufacturing method of electroplating superhard material grinding wheel
A manufacturing method and technology of superhard materials, applied in the direction of manufacturing tools, metal processing equipment, grinding devices, etc., can solve the problems of coating distribution (uneven coating thickness, uneven cathode current density distribution, etc., and shorten the thickening time. Effect
Active Publication Date: 2017-07-21
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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Problems solved by technology
[0004] Due to the uneven distribution of cathode current density during the grinding wheel electroplating process, the uneven coating distribution (coating thickness) is caused
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Embodiment 1
[0027] A method of manufacturing an electroplated superhard material grinding wheel, taking the electroplated diamond grinding wheel for processing engine valves as an example, the electroplating area is 7.2dm 2 , the abrasive particle size is 80 / 100, and the embedding rate of the coating is required to be 50%, including the following steps:
[0028] (1) Sanding: In the sanding device, abrasive vibration and grinding wheel substrate rotation are used for buried sanding, the vibration frequency is 50Hz, the grinding wheel speed is 30r / min, and the sanding current density is 0.8A / dm 2 ~2.0A / dm 2 , the sanding time is 1.5h, and the sanding is completed by the conventional method for sand unloading;
[0029] The specific sanding is as follows: figure 2 As shown, the pre-plated grinding wheel base 3 is placed in the upper sand tank 34, the grinding wheel base 3 is placed on the upper sand bottom plate 32, the sand ring cover 31 is placed near the outer circle of the grinding whe...
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Abstract
Provided is a method for manufacturing an electroplating superhard material grinding wheel. In an existing process for producing the electroplating superhard material grinding wheel, the time consumed for abrasive grain dispensing (abrasive grain embedding) and thickening occupies 70-80% of the whole process time, and the shortening of the abrasive grain embedding time and thickening time is the key for improving electroplating grinding wheel production efficiency. The maximum current density allowed for existing abrasive grain dispensing and the maximum current density allowed for thickening generally do not exceed 1A / dm2 and 2A / dm2, so the time consumed for the two processes is long. According to the method for manufacturing the electroplating superhard material grinding wheel, technical means such as grinding wheel rotation, an abrasive material vibration dynamic abrasive grain embedding method and two-dimensional rotation thickening can be adopted to effectively improve abrasive grain embedding and thickening efficiency, and the corresponding abrasive grain embedding and thickening is shortened to be about a half of the time required in the prior art.
Description
technical field [0001] The invention belongs to the field of grinding wheel manufacturing, in particular to a method for manufacturing an electroplated superhard material grinding wheel. Background technique [0002] Electroplated superhard material grinding wheels have the common performance of all superhard grinding wheels, and their common characteristics are higher grinding ratio, less grinding force and less grinding heat than ordinary abrasive tools. At the same time, because of the existence of single-layer abrasives in the working layer, compared with vitrified bond superhard material grinding wheels and resin bond superhard material grinding wheels, the cutting is sharper, the grinding efficiency is high, the grinding operation is free of trimming, and it is easy to remove chips; The electroplating process can produce complex and special-shaped grinding wheels with good shape retention and high machining accuracy. Therefore, electroplated superhard material grindin...
Claims
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IPC IPC(8): B24D18/00C25D3/16C25D5/14C25D7/00
CPCB24D18/0027C25D3/16C25D5/14C25D7/00
Inventor 闫宁王亮亮
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD