Diamond soldering appliance

Abstract

The invention relates to the manufacturing field of hard brittle materials, in particular to a diamond brazing tool which is in the combining structure of joint and staircase-like steps. The invention comprises a bit, a saw blade and a grinding wheel, and is mainly used for the drilling, cutting, grinding and polishing of stone materials, concrete, glass, ceramics, crystal, hard alloy and the like materials. The matrix structure of the working area of the diamond brazing bit, the saw blade and the grinding wheel is designed to a combining structure of joint and staircase-like steps, diamond abrasive is brazed on the step surface and in the joint, and the diamond abrasive is put into use step by step when in the process of drilling, cutting, grinding and polishing, thereby the contact surface with the processing object is reduced, the grinding force is small and the cutting efficiency is high.

Description

technical field [0001] The invention relates to the field of processing hard and brittle materials, in particular to a diamond brazing tool with a combined structure of seams and stair-like steps, which includes a drill bit, a saw blade and a grinding wheel, and is mainly used for stone, concrete, glass, ceramics, crystal, hard Drilling, cutting, grinding and polishing of high-quality alloy and other materials. Background technique [0002] At present, there are two main types of diamond tools: electroplating and sintering (thermal curing). Electroplated diamond tools only rely on the mechanical embedding of diamond abrasives in the coating, and there is no bonding strength at the interface between the diamond and the coating. Sintered diamond tools are made of metal powder and diamond abrasive particles mixed and sintered. There is neither wetting nor bonding strength at the material interface. The diamond abrasives on the surface of these two tools will fall off prematur...

AI Technical Summary

Problems solved by technology

The diamond abrasives on the surface of these two tools will fall off prematurely due to insufficient holding force during heavy-duty operations, resulting in low abrasive utilization and short tool life

In recent years, domestic and foreign studies have used the brazing method to make diamond abrasive beads. Due to the reaction between the superabrasive and the active elements (such as Cr, Ti) in the molten solder, this reaction improves the wetting of the molten brazing component to the abrasive surface. Climbing ability enhances the compatibility between the bonding agent and diamond abrasives, improves the adhesion and bonding strength, solves the problem of insufficient holding force of superhard abrasives on tools, and also brings new problems: due to diamond brazing drills, saws The surface where the diamond is bonded to the blade and the grinding wheel is the end face of the drill bit, the outer peripheral surface of the saw blade, and the outer cylindrical surface of the grinding wheel. Therefore, too many diamond abrasive grains participate in the grinding at the same time. It is not easy to fall off, the contact area with the processing object increases, it is difficult for the tool to provide moderate pressure to perform effective grinding, and the cutting efficiency is reduced. If the number of diamonds on the surface of the tool is reduced, although the cutting force is small and the cutting efficiency is high, the service life is reduced

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