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Welding Mechanism Lab
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A lab investigating the functions and mechanical properties of welded and joined parts from their microstructure.
AboutAbout the lab
Clarifying how joint properties are determined.
The Welding Mechanism Lab studies the mechanisms that determine the functions and mechanical properties of joined structures made by fusion welding, liquid-phase joining, and solid-state bonding.
From a materials science perspective, it observes and analyzes the microstructure and structure of joints and interfaces, and builds models based on the results for simulation.
It aims to lay the foundations of materials design for obtaining defect-free joining interfaces with excellent functions, leading to the development of new joining methods and the property evaluation of joined structures.
The lab belongs to the Joining Mechanism Division of the Joining and Welding Research Institute, Osaka University, and is also introduced in the Graduate School of Engineering's laboratory directory under the name "Welding and Joining Functional Design Chair."
Key terms
- Fusion welding
- A welding method in which the materials to be joined are melted and made into one piece.
- Solid-state bonding
- A joining method in which materials are joined while remaining solid, without melting.
- Microstructure
- The fine structure inside a material, such as small crystals, seen under a microscope.
ResearchResearch themes
The lab aims to lay the foundations of materials design for obtaining defect-free joining interfaces with excellent functions. To this end, it investigates from a materials science perspective how the microstructures of joints and interfaces form, and how they relate to the functions and mechanical properties of joined structures.
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MembersFaculty
- ProfessorKazuhiro Ito
- LecturerMakoto Takahashi
- Project LecturerBingbing ZHAO
- Assistant ProfessorHONG SEONG MIN
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Arc welding ( )” US Air Force from USA / Public domain (cropped)
- Mechanisms Behind Joint Functions and Mechanical Properties: “X-ray test of friction-stir welded tank ESA373005” European Space Agency / CC BY-SA 3.0 igo (cropped)
- Related lab (複合化機構学分野): “Composite 3d” PerOX / Public domain (cropped)
- Related lab (接合界面機構学分野): “Friction Stir Weld” NASA / Public domain (cropped)
- Related lab (接合構造化解析学分野): “Tandem welding torch 002” Pipimaru / CC BY-SA 3.0 (cropped)
- Related lab (接合組織評価学分野): “Fillet joint friction stir welding (FSW) equipment for welding the fillet joint of an electric vehicle frame” Hwanjin Kim,1 Kwangjin Lee,2Jaewoong Kim,3 Changyeon Lee,4 Yoonchul Jung5 and Sungwook Kang,6* 1 Department of Mechanical Engineering, Gyeongsang National University, Jinju 52828, Korea 2 Carbon Materials Application R&D Group, Korea Institute of Industrial Technology, Jeonju 54853, Korea 3 Smart Mobility Materials and Components R&D Group, Korea Institute of Industrial Technology, Gwangju 61012, Korea 4 Technical Center: Daejoo Kores Co., LTD., Wanju 55316, Korea 5 Dongnam Division, Korea Institute of Industrial Technology, Busan 46938, Korea 6 Precision Mechanical Process and Control R&D Group, Korea Institute of Industrial Technology, Jinju 52845, Korea * Author to whom correspondence should be addressed. / CC BY 4.0 (cropped)
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