A method of making electroplated superabrasive cutting wire

Abstract

The invention discloses a method for making an electroplated superabrasive cutting wire, which includes a method for chemical composite plating on the surface of a superhard abrasive, wherein the surface of superhard abrasive particles is coated with a layer of nickel-phosphorus alloy by the method of chemical composite plating , the nickel-phosphorus alloy layer contains solid particles, and the solid particles are non-conductive particles. In the present invention, the surface of the superhard abrasive forms a nickel-phosphorus coating containing solid particles by electroless plating. The solid particles in the coating are non-conductors, doped in the nickel-phosphorus alloy, occupy a certain volume space, and reduce the conductivity of the nickel-phosphorus alloy. It can suppress the cathodic discharge reaction on the surface of the superabrasive deposited on the steel wire during the electrodeposition process, thereby avoiding the agglomeration of the superabrasive on the cutting line, making the diameter of the cutting line uniform, and eliminating the need for subsequent processes to remove The agglomerated superhard abrasive can correct the wire diameter, reduce the production cost and improve the production efficiency.

Description

technical field [0001] The invention relates to a method for making an electroplated superabrasive cutting wire. Specifically, it relates to an electroplating superhard abrasive cutting tool, which belongs to the technical field of electroplating. Background technique [0002] Electroplated superabrasive cutting wire refers to a cutting tool formed by using electrodeposition to consolidate superabrasives onto the metal wire substrate through electrodeposited metal. Superabrasives usually refer to diamond abrasives and cubic boron nitride abrasives; electrodeposited metals are usually metallic nickel or nickel alloys; metal wire substrates generally use high-carbon steel wires. Electroplated superabrasive cutting wire is usually used in the cutting process of hard and brittle materials such as silicon crystals, gemstones, and ceramics. [0003] The general manufacturing process of electroplated superabrasive cutting wire is: pretreatment before plating, sanding, thickening ...

AI Technical Summary

Problems solved by technology

The disadvantage of using this kind of metallized superabrasive to manufacture cutting lines by electrodeposition is: due to the greater weight gain of the nickel-phosphorus alloy, the thickness of the nickel-phosphorus alloy layer is relatively large, and the conductivity is good. The superhard abrasive aggregates on the surface of the cutting wire. This agglomeration phenomenon not only causes large fluctuations in the diameter of the cutting wire, but also affects the cutting quality. In addition, it is necessary to use subsequent processes to remove the agglomerated abrasive grains, which not only increases the cost, but also reduces the cutting cost. Line Manufacturing Efficiency

However, the metal layer on the diamond surface used in this method is too thin, and it is easily corroded in the electroplating solution, which affects the continuity of production.

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