EDM mark treatment process

Abstract

The invention discloses an EDM mark treatment process. The EDM mark treatment process comprises the steps of 1, liquid medicine treatment, and 2, polishing treatment. In the step 1, an EDM mark layeris coated with EDM mark corrosion liquid medicine so as to corrode the EDM mark layer, wherein the formula of the EDM mark corrosion liquid medicine comprises 5L of water, 0.3L of concentrated sulfuric acid, 0.5kg of ammonium bifluoride, 0.8L of hydrogen peroxide and 1.5L of nitric acid; and in the step 2, polishing treatment is performed on the EDM mark layer after the completion of the liquid medicine treatment in the step 1. Therefore, according to the EDM mark treatment process, the rapid removal of EDM marks is realized, a large amount of polishing time is reduced, the patterned mark removal process is shortened, and the production cost is reduced; and meanwhile, the risk of local excessive polishing or omission polishing caused by manual polishing is avoided, the damage to the polishing surface of a mold is avoided, and the precision and size of the mold is ensured.

Description

technical field [0001] The invention relates to the technology in the field of fire patterns, in particular to a fire pattern treatment process, which is mainly applied to the treatment of fire patterns on the surface of a mold. Background technique [0002] EDM is also called electro-erosion machining or electrical discharge machining. Its principle is based on the electro-corrosion phenomenon during the pulsed spark discharge between the tool and the workpiece (positive and negative poles) to etch away excess metal to achieve the size, shape and surface quality requirements. It is widely used in mold manufacturing and mechanical processing industries. EDM can be used to process superhard materials and complex-shaped workpieces that are difficult to process by traditional cutting methods. It is usually used for difficult machining such as titanium alloys, tool steels, carbon steels, and hard alloys. Machining complex cavities or contours on materials. Electric discharge m...

AI Technical Summary

Problems solved by technology

After the discharge treatment, the surface material of the mold is as if it has undergone annealing treatment, which brings great difficulties to the subsequent surface treatment and processing of the mold, especially for molds that require further chemical etching, they are generally manually processed with oil stones. Slowly throw away the spark pattern layer on the surface, and after a lot of practical experience, it is found that the spark pattern will not only cause certain damage to the surface of the mold, but also have a certain impact on the precision and size of the mold. In the pattern treatment, the local area may not be polished thoroughly, so that the fire pattern may not be completely removed, resulting in the inability to corrode the subsequent texture

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