Customized laser intelligent rapid deposition method for remanufacturing of railway train wheel pair

Abstract

The invention provides a customized laser intelligent rapid deposition method for remanufacturing of a railway train wheel pair, and belongs to the train wheel pair repairing field so as to solve the problems that according to a current manner, the repairing effect is not ideal, the service life is short, and the railway transporting cost is high. The method comprises the steps that a damaged or failure wheel and axle component are subjected to damage situation checking, and the damage failure degree and generation factors are determined; according to the checking result, the part types and materials and the using requirement, the whole life cycle of the components is determined; according to the checking result, the part types and materials, the using requirement and the whole life cycle, alloy materials used for remanufacturing of the components are designed; a to-be-repaired part is thoroughly cleaned, a semiconductor laser machine and a single-arm robot are adopted for depositing the alloy materials to the to-be-repaired part; the single-arm robot guides laser beams to deposit the alloy materials with the speed of 480-800 mm / min; and the remanufactured components are recovered to the original designed and manufactured specification and dimension, nondestructive testing and hardness detection are conducted, and accordingly the technology standard requirement of the components is met.

Description

technical field [0001] The invention relates to the technical field of railway train wheel set repair, in particular to a method for rebuilding railway train wheel sets through customized laser intelligent rapid deposition. Background technique [0002] In the operation of railway trains, wheels, axles and rails are called the three major safety components of railways. Their quality, performance and service life are directly related to the safe operation of trains and the safety of passengers' lives and property. Wear, peeling and cracks of wheels and axles, which are important parts of train operation safety, are three important factors for damage or failure of train wheel sets. The wear rate of the wheels is 1.0 mm per 100,000 kilometers traveled. The average service life of the general train wheels is only 4 to 5 years, and the average service life of the high-speed train wheels is only 2.5 years. The axle is subjected to multiple complex stresses such as rotation, bendi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of unsatisfactory repair effect, short service life after repair and high railway transportation cost due to the replacement of parts in the current repairing process of train wheelsets, and provide a customized laser Intelligent rapid deposition method for rebuilding railway train wheel sets