Diamond abrasive disc based on spot welding and manufacture process thereof

Abstract

The invention provides a diamond abrasive disc based on spot welding. The diamond abrasive disc comprises an iron sheet substrate, and a cutter head component is arranged welded on the top surface of the iron sheet substrate. The cutter head component comprises an iron bar, a connecting layer and a cutter head, and the iron bar is fixed to the iron sheet substrate through spot welding. The connecting layer is positioned on the top surface of the iron bar, and the cutter head is positioned above the connecting layer. Welding spots are arranged on the bottom surface of the iron sheet substrate. The invention also provides a manufacture process of the diamond abrasive disc based on spot welding. The manufacture process comprises the steps of placing the cutter head, sprinkling into alloyed powder, placing the iron bar, hot pressing, setting the welding spots, welding and cooling. As the connecting layer can pass through relatively low temperature, the cutter head and the iron bar in the cutter head component can be firmly fused together. The iron sheet substrate and the cutter head component are dotted through spot welding to be fused together. The sprinkling amount of the alloyed powder can be regulated by controlling the speed of a motor.

Description

technical field [0001] The invention relates to the technical field of grinding discs, in particular to a diamond grinding disc based on spot welding and a manufacturing process thereof. Background technique [0002] At present, diamond grinding discs are widely used in the grinding and polishing of stone, floor materials and hard and brittle non-metallic materials. Diamond cutter heads and grinding discs are usually connected by welding methods, such as high-frequency heating welding and silver brazing. These welding methods are It will cause secondary heating of the diamond segment, and the temperature of this secondary heating is very close to the hot pressing temperature of the diamond segment, and its heat-affected zone is relatively large, so it will have a significant impact on its performance, and even greatly reduce the diamond segment. In addition, due to the consumption of a large amount of flux and silver electrodes during brazing, the production cost is relative...

AI Technical Summary

Problems solved by technology

[0002] At present, diamond grinding discs are widely used in the grinding and polishing of stone, floor materials and hard and brittle non-metallic materials. Diamond cutter heads and grinding discs are usually connected by welding methods, such as high-frequency heating welding and silver brazing. These welding methods are It will cause secondary heating of the diamond segment, and the temperature of this secondary heating is very close to the hot pressing temperature of the diamond segment, and its heat-affected zone is relatively large, so it will have a significant impact on its performance, and even greatly reduce the diamond segment. In addition, due to the consumption of a large amount of flux and silver electrodes during brazing, the production cost is relatively high, and the working environment of the production workers is relatively harsh, and they must be in the high temperature of brazing for a long time. Therefore, we propose a Diamond grinding disc based on spot welding and its manufacturing process

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