Turbine engine blade automatic repairing device and method

Abstract

The invention provides a turbine engine blade automatic repairing device and method. The turbine engine blade automatic repairing device comprises a computer, a laser, a mechanical arm, a powder feeder, a laser head, a three-dimensional scanner, a blade defect automatic detection device, a polishing device and an installation base. According to the turbine engine blade automatic repairing method, the computer generates a laser repairing movement path, laser generated from the laser is projected to turbine engine blades with repairing material powder, the mechanical arm drives the installation base to move with six degrees of freedom inside space, and the laser performs fusion covering on the turbine engine blades along a set path. The turbine engine blade automatic repairing device and method adopts highly integrated and automated repairing device and technology to achieve automatic and intelligent repairing of the turbine engine blades and accordingly the repairing efficiency and quality of the turbine engine blades are improved.

Description

technical field [0001] The invention relates to the field of laser processing, in particular to a turbine engine blade automatic repair equipment and a repair method thereof. Background technique [0002] The high-pressure turbine blades of gas turbines and aero-engines are one of the key components of the entire engine. They are directly driven by the high-pressure and high-temperature gas after combustion, and generate aerodynamic power through high-speed rotation. These high-performance blades need to operate for a long time under high-temperature and high-stress load conditions, and their life is often the weak link that determines the life of the entire engine life cycle. Therefore, it is necessary to use advanced detection and repair technology to automatically repair these defective and damaged blades, so that they can meet the requirements of industrial equipment, prolong their service life, and obtain considerable technical and economic benefits. Due to the harsh w...

AI Technical Summary

Problems solved by technology

In this repair process, manual methods are used in key processes such as grinding and surfacing welding, which have low repair efficiency, poor repeatability, difficult quality control, and low repair yield. It cannot be repaired by using the above repair process method

[0004] At present, the fusion welding methods for the repair of high-performance metal parts include argon tungsten arc welding, plasma welding, and electron beam welding, among which manual argon tungsten arc welding and plasma welding are relatively mature fusion welding repair processes, but these two The method has a large heat input during the repair process, and it is easy to generate large thermal stress and heat-affected zone, which is easy to cause metallurgical defects such as cracks and pores, which affects the quality of repair and the service life of parts; electron beam welding has good energy focus and Controllability, but requires a higher degree of vacuum and special vacuum equipment, and the repair cost is higher

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