Elucidation of the mechanisms of the welding and joining processes and development of welding and joining methods that does not cause deterioration of properties

Welding and joining, which joins materials without using adhesives, is a basic technology used in all manufacturing processes, from electronic to aerospace components. We are developing welding and joining processes that join dissimilar materials without deterioration of their properties, such as joining between dissimilar metals and joining of metals to resins.

Introduction to Research

Simultaneous addition of silicon and nickel to the dissimilar material interface between Al alloy and steel successfully triples bonding strength. Homogenization of microstructure and mechanical properties in wire-arc additive manufacturing of martensitic stainless steel was successfully achieved.

Introduction to Research

We approach the welding and joining processes based on materials science by systematically studying the properties of the welds, joints and surface-modified areas to create welded and joined parts that can withstand the harshest environments.

Publications

Materials Science & Engineering A, 863, 144544, 2023.

Materials & Design, 225, 111444, 2023.