Precise Fabrication of Wall Structure onto Thin Plate End with Interlayer Temperature Monitoring on Wire and Arc-based Additive Manufacturing

Abstract

The goal of this study was to perform additive fabrication onto the thin end of a plate using wire and arc-based additive manufacturing to repair turbine blades using Inconel 718. We investigated the relationship between lamination conditions and lamination width by fabricating a wall structure while maintaining a constant interlayer temperature. Results clarified that the lamination width is determined uniquely from a combination of wire feed speed and torch feed speed. By back calculating the combination of these two speeds from the target lamination width, we were able to roughly fabricate a wall structure with the target lamination width onto a thin plate end with a thickness of 1 mm or more.