Method for preparing diamond saw blade by cold pressing connection

Abstract

The invention discloses a method for preparing a diamond saw blade by adopting cold pressure connection, which belongs to the technical field of diamond saw blades. The diamond saw blade has a disc structure, including a flat disc bottom and a disc rim, and the tapered shank inside the diamond cutter head is embedded in the gap between the saw teeth on the outer periphery of the base and tightly combined with the saw teeth. Through the optimized design of the saw blade structure, and the cold-pressed connection method is used to embed the cutter head into the saw blade base body, the reliable connection between the cutter head and the base body is realized. The prepared diamond saw blade can be bent and cut, and can cut special-shaped patterns in any material, which is not only convenient, but also meets multi-purpose requirements.

Description

Technical field: [0001] The invention relates to the technical field of diamond saw blades, in particular to a method for preparing diamond saw blades by cold pressing. Background technique: [0002] In the general environment of global economic development, multi-functional, convenient and professional tools have become the direction of research and development of tool products, especially in the fields of engineering construction, stone carving and other fields, which are more in need of such products. [0003] Diamond saw blade is a kind of sawing processing tool, which is widely used in cutting hard and brittle materials such as concrete, refractory materials, stone, ceramics and so on. The diamond saw blade is mainly composed of a matrix and a cutter head. The cutter head is generally composed of a matrix alloy and a certain proportion of diamond particles. The cutting of diamond particles and stones is realized by using the holding force of the matrix alloy on the diam...

AI Technical Summary

Problems solved by technology

The traditional high-frequency welding is to braze the cutter head on the substrate, and the joint surface of the cutter head is connected by melting and penetrating the brazing material. The heat-affected zone is wide, the high-temperature strength is low, and the bearing capacity is poor. It is not suitable for occasions requiring high temperature and high strength.

[0006] The technology of laser welding is relatively mature, which can better fuse the diamond cutter head and the steel substrate, with high bonding strength and small heat-affected zone, which overcomes the phenomenon of blade shedding, but because the cutter head and the saw blade substrate are heterogeneous Materials, various properties vary greatly, so a transition layer needs to be prepared during laser welding. At the same time, in order to obtain sufficiently high welding strength and good weld quality, it is necessary for the cutter head, saw blade base and transition layer to have a reasonable formula and The optimal sintering temperature, if the composition of the cutter head and the transition layer is too different, it is easy to break at the junction due to uneven heat and force; Pores, voids, etc. appear, resulting in low welding strength, which cannot meet the requirements of use. Therefore, the development cost and scrap rate of saw blades prepared by laser welding are high, and the process is complicated

[0007] In addition, the existing ordinary circular saw blades can only cut straight lines, but when digging round holes on stone countertops or engraving various shapes on the stone surface, the saw blades are required to be able to perform free bending cutting, which is not yet possible.

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