Systems and methods of defect repair of metal pipelines using composite wrap repair with diode laser curing

A method of repairing a defect section in a metal pipe, comprising:

• a) applying a layer of a composite wrap on the defect section;
• b) disposing a layer of wet-out resin on the composite wrap;
• and
• c) partially curing the layer of wet-out resin using a diode laser operating at a first intensity without completely curing the layer,
• wherein:
• i) steps a) to c) are repeated until 5 to 50 layers of wet-out resin are disposed;
• and
• ii) after i) fully curing all layers of the wet-out resin using the diode laser at a second intensity;
• and
• a temperature generated by the diode laser during step ii) is lower than a temperature generated by the diode laser during step c).