BASIC STUDY ON GEAR COATING TECHNOLOGY USING DIRECTED ENERGY DEPOSITION

Abstract

In recent years, with the spread of electric vehicles, development of high-performance mechanical parts has been required. With respect to the manufacturing process, metal Additive Manufacturing (AM) such as Directed Energy Deposition (DED) is attracting attention in automobile industry. Since the DED process can deposit molten material onto the specific surface, where it solidified, it is regarded as a promising coating process to enhance the hardness and surface functionality of mechanical parts. From this perspective, a gear coating process using DED is proposed in this research to strengthen gear surface and its basic study is conducted. Concretely, the coated material quality and mechanical properties like hardness are evaluated.