Repairing and Strengthening Methods of Cutting Tool in High Temperature Service Shearing Equipment

Abstract

The invention provides a repairing and strengthening method for a tool of high-temperature in-service shearing equipment. The repairing and strengthening method for the tool of the high-temperature in-service shearing equipment comprises the steps that laser cleaning is conducted on the surface of the tool, and nondestructive testing is conducted, so that a damaged area of the tool is positioned; laser cladding treatment is conducted on the damaged area of the tool, and the damaged area is slightly higher than the surface of the tool after being treated; laser cladding treatment is conducted on the whole surface of the tool, and then polishing treatment is conducted on the whole surface of the tool; the polished surface of the tool is coated with an absorption layer, and laser shocking treatment is conducted on the surface of the tool by penetrating through a restraint layer. By the adoption of the repairing and strengthening method for the tool of the high-temperature in-service shearing equipment, the defects of insufficient repairing and strengthening and the like in the prior art can be overcome, the high-temperature resistance and the abrasion resistance of the tool of the shearing equipment are comprehensively improved, the service life of the tool is greatly prolonged, and practical engineering application problems are solved.

Description

technical field [0001] The invention relates to the fields of mechanical manufacturing and material processing, in particular to a method for repairing and strengthening a cutting tool of high-temperature service shearing equipment. Background technique [0002] Laser cleaning is a new type of laser surface treatment technology. The mechanism of laser cleaning is mainly based on the fact that after the pollutants on the surface of the object absorb the laser energy, they either vaporize and volatilize, or expand instantly when heated to overcome the adsorption force of the surface on the particles and make them detach from the surface of the object. And then achieve the purpose of cleaning. Compared with traditional cleaning processes, laser cleaning technology is a "green" cleaning process that does not require cleaning fluid or other chemical solutions, and its cleanliness is much higher than that of chemical cleaning processes, which can be easily automated. [0003] Las...

AI Technical Summary

Problems solved by technology

However, the traditional method of cleaning before laser cladding cannot achieve high-cleanliness cleaning, especially for the cleaning of rust, which is difficult to clean with traditional cleaning, so the alloy layer of laser cladding on this surface is easy to fall off, and the efficiency relatively low

Secondly, this method cannot improve the overall high temperature and wear resistance of the tool, and is only limited to repairing and strengthening the damaged area, which will cause the other damaged areas to continue to wear, and cannot achieve the purpose of overall tool strengthening

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