Abstract: In this study, Q235B is used as the additive remanufacture substrate and DHQ49-1 (H08Mn2SiA) is used as the cladding material. The influence of welding process parameters on the evenness of the cladding layer is investigated through the orthogonal experiment to study the influence of welding process parameters on the flatness of remanufacturing cladding forming, obtaining the optimal welding process parameters. Results indicate that the weld bead offset has the most significant influence on the layer evenness. Using the optimal parameters obtained herein, the height and width errors of the welding cladding are less than 0.3 mm and 0.8 mm, respectively. This study provides a data basis for the deposition accuracy control and process optimization of robot welding additive remanufacturing and has certain theoretical value and practical significance.

Key words: robot welding, additive manufacturing, remanufacturing, orthogonal experiment