초록 ▼

A process of the kind used for producing or repairing a turbine or compressor or fan blade by laser consolidation wherein a laser beam is moved relative to a metal surface and a stream of metal is supplied to the surface via a supply tube, so that said laser beam melts a thin layer of the metal subs

A process of the kind used for producing or repairing a turbine or compressor or fan blade by laser consolidation wherein a laser beam is moved relative to a metal surface and a stream of metal is supplied to the surface via a supply tube, so that said laser beam melts a thin layer of the metal substrate and also melts the metal being delivered to the substrate and thus forms a band of fused metal on said surface, the process being repeated until a desired blade is built up or repaired. The invention is characterized in that the laser beam is orientated at an acute angle to the surface. The supply tube may deliver the metal substantially along a path normal to the surface, with the laser beam being one of a plurality of laser beams each orientated at an acute angle to the surface and spaced around the supply means. Alternatively, a single laser beam may be used at a first acute angle to the surface, with the supply tube being at a second acute to the surface, the laser beam and supply tube being at opposite sides to the normal to the surface.

대표청구항 ▼

[ What is claimed is:] [1.]1. A process for producing or repairing a turbine/compressor blade by laser consolidation, comprising relatively moving a laser beam along a surface of a metal substrate to irradiate the metal substrate and simultaneously supplying a stream of metal to said surface via sup

[ What is claimed is:] [1.]1. A process for producing or repairing a turbine/compressor blade by laser consolidation, comprising relatively moving a laser beam along a surface of a metal substrate to irradiate the metal substrate and simultaneously supplying a stream of metal to said surface via supply means having a fixed relationship to said laser beam, so that said laser beam melts a thin layer of the metal substrate and also melts the metal in said stream being delivered to the metal substrate and thus forms a band of fused metal on said surface, and repeating said step until a desired blade is built up or repaired;characterized in that said stream of metal is delivered by said supply means substantially along a path coincident with a normal to the surface, and in that said laser beam is one of a plurality of laser beams each orientated at an acute angle to the normal to the surface, said laser beams being spaced around the stream of metal.