Investigation of a 3D non-contact measurement based blade repair integration system

Purpose The aim of the paper is to provide an economically viable solution for the blade repair process. There is a continual increase in the repair market, which requires an increased level of specialised technology to reduce the repair cost and to increase productivity of the process. Design/methodology/approach This paper introduces the aerospace component defects to be repaired. Current repair technologies including building-up and machining technology are reviewed. Through the analysis of these available technologies, this paper proposes an integrated repair strategy through information integration and processes concentration. Findings Provides detailed description and discussion for the repair system, including 3D digitising system, repair inspection, reverse engineering-based polygonal modelling, and adaptive laser cladding and adaptive machining process. Originality/value This paper describes a 3D non-contact measurement-based repair integration system, and provides a solution to create an individual blade-oriented nominal model to achieve adaptive repair process (laser cladding/machining) and automated inspection.