Region of Research

In this department, based on the elucidation of the various phenomena at the joint interfaces of ferrous, nonferrous, non-metal materials at both macroscopic and microscopic levels, the interface formation mechanisms during various joining processes are clarified to create new interface control methods.
In addition, novel welding and modification processes are developed, mainly based on fusion welding methods and friction welding methods such as the friction stir welding, rotary friction welding and linear friction welding methods, which is the core of the fundamental technologies having a great potential to produce new values. These developments are going to be used and focused simultaneously in our society in order to create a new research field and elevate the continuous growth of industrial competitiveness of our country.

Current Research Subjects

  1. Control of interface and elucidation of formation mechanism during friction welding (FSW, Friction welding, Linear friction welding)
  2. Development of novel joining and modification processes
  3. Elucidation of formation mechanism of weld interface and molten pool
  4. Analysis of joint interface structure
  5. Control of solid-liquid interface formation

Prof.
H.Fujii
Assoc.Prof.
T.Nagira

Assist. Prof.
H. Liu
   
S.A.Prof.
K.Ushioda
  S.A.
Assoc.Prof.
Y.Morisada
S.A.
Assoc.Prof.
Y.Aoki
       
S.A.
Researcher
S.Lee
     

Three-dimensional visualization of the material flow using a W tracer during the FSW.


SEM microstructures and Vickers hardness along the central axis of LFWed joints.

 
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