Application case overview
A preliminary research project on the transmission system of a civil turboshaft engine to verify the feasibility of the laser additive repair method on typical materials of typical parts of the transmission system. The performance after repair meets the requirements. Taking the tail propeller shaft spline as an example, during use If there is wear and tear, laser cladding additive repair technology is used to repair the parts, and all aspects of performance are inspected.
The splines are divided into internal splines and external splines. The material of the internal splines is 15-5ph, and the material of the external splines is 9310 steel. There are no restrictions on the materials used for laser additive repair, as long as they meet the performance requirements. The metallographic inspection of laser cladding materials meets the technical requirements, and there are no defects such as pores, slag inclusions, or cracks.
Metallographic diagram of 15-5ph substrate laser cladding repair material (the lower part of the metallographic diagram is the cladding layer)
Metallographic diagram of laser cladding repair material for 9310 steel substrate (the lower part of the metallographic diagram is the cladding layer)
After passing the mechanical property test, the simulated sample is repaired. In order to ensure the repair after cladding, a certain thickness needs to be ensured, and the scanning path needs to be designed according to the spline shape.
Rendering of external spline simulation parts after laser cladding repair
Rendering of the external spline simulation part after laser cladding repair and fluorescent flaw detection