Production process of diamond saw blade

Abstract

The invention relates to a production process of a diamond saw blade. The process specifically comprises the following steps: A, proportioning: preparing by weight, 15-20 parts of diamond powder, 20-25 parts of copper powder, 30-40 parts of iron powder, 20-25 parts of manganese powder, 4-5 parts of nickel powder, 20-30 parts of glass fiber powder, 10-20 parts of ceramic powder, 3-5 parts of ferricoxide powder, 6-8 parts of zinc oxide powder and 2-4 parts of pore forming powder; B, mixing and cold pressing: mixing the raw materials, stirring and mixing the ingredients through a stirring bladeof a special cold press at the stirring speed of 400 r / min-480 r / min, pressing the ingredients on the outer edge of a substrate to form a workpiece a at the pressing pressure of 200 KN-280 KN; C, sintering: placing the ingredients into a sintering furnace, adopting the method of heating after pressurization and pressure releasing after cooling, performing sintering at the temperature of 830-840 DEG C and pressure of 6 GPa-8 GPa, and obtaining a workpiece b; D, polishing and painting; and E, sharpening: sharpening the prepared workpiece through a saw blade so as to form multiple cutting groovesin the two side surfaces of the diamond blade. The production process has the advantages of reducing the cost, improving the structural strength, reducing vibration and dissipating heat.

Description

Technical field: [0001] The invention belongs to the field of cutting, and in particular relates to a production process of a diamond saw blade. Background technique: [0002] Diamond saw blade is a kind of cutting tool, which is widely used in the processing of hard and brittle materials such as stone, concrete, prefabricated panels, ceramics, new roads, etc. The diamond saw blade is mainly composed of a base body and a cutter head. The main support part, while the cutter head is the part that cuts during use. At present, the production process of diamond saw blades mostly adopts electroplating, high-frequency welding and laser welding. These three production processes will affect the structural strength and cutting hardness of diamond saw blades. It is easy to break under the welding seam, and there are pores or welding spots in the welding seam, and the welding strength is low. [0003] In order to solve the above technical defects, the current production enterprise pro...

AI Technical Summary

Problems solved by technology

At present, the production process of diamond saw blades mostly adopts electroplating, high-frequency welding and laser welding. These three production processes will affect the structural strength and cutting hardness of diamond saw blades. It is easy to break under the weld, and there are pores or weld bumps in the weld, and the welding strength is low.

[0003] In order to solve the above technical defects, the current production enterprise proposes a production process of pressing and sintering diamond powder to replace the production method of electroplating and welding. Firstly, the cost of pure metal powder is relatively high, and secondly, the cutting sheet made of pure metal powder is at high speed. During the cutting and grinding process, a large amount of heat will be generated, which will burn the workpiece, and the thermal stress inside the matrix of the diamond saw blade will be concentrated. At the same time, the vibration wave will propagate to the center of the matrix, causing the cutting blade to crack and deform at the center

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