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Furushima Lab
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The lab investigates why metals deform the way they do by looking at their material microstructure, and applies that understanding to metal processing.
AboutAbout the lab
Understanding how metals deform, and designing how to process them
The Furushima Lab (Deformation Processing Lab) builds on metal forming and plasticity engineering to study why metallic materials deform the way they do.
Starting from observation of the fine microstructure of materials, the lab covers the whole chain: understanding the mechanisms of deformation and fracture, modeling them, and designing forming processes.
By combining experiments and measurement, material modeling, numerical analysis, and equipment development, the lab aims to create new forming technologies.
Master's and doctoral students are welcome, and lab visits are accepted.
Key terms
- Metal forming
- Processing that shapes metal by applying large forces to cause permanent, irreversible deformation, such as pressing and drawing
- Crystal grain
- A small grain within a metal in which the atoms are lined up in the same orientation. A metal is made up of an aggregate of these grains
- Recrystallization
- A phenomenon in which new, strain-free crystal grains form anew, for example when deformed metal is heated
NewsLab news
View More ↗ResearchResearch themes
The lab seeks to understand the plastic deformation of metals from the viewpoint of what is happening inside the material, and connects that understanding to process design: how the metal should be formed. It works on the design and advancement of forming processes such as deep drawing, tube forming, and dieless forming, which uses no dies.
*Illustrative imageCrystal plasticity and inhomogeneous deformation
The lab investigates how crystal orientation, grain boundaries, and the relationship with neighboring grains give rise to local strain and surface displacement. By comparing experiments with analyses that incorporate the shapes and orientations of actual grains, it tracks the development of surface roughening.
*Illustrative imageSurface roughening and ductile fracture
The lab investigates how microscale inhomogeneous deformation leads to surface irregularities, localized necking, the growth and coalescence of internal voids, and ultimately fracture.
*Illustrative imageMicrostructure evolution during forming and recrystallization
The lab studies how temperature, strain, strain rate, and conditions such as localized heating or the application of electric current affect recrystallization, grain size, and texture. It also works on microstructure control of magnesium alloys.
*Illustrative imageMicro precision press forming and size effects
As sheet thickness and the dimensions of the formed part become smaller, the effects of grain size and surface roughness become more prominent. Focusing on micro deep drawing, the lab investigates formability and fracture limits through experiments and analysis.
MembersFaculty
The members of the Furushima Lab consist of faculty, administrative support staff, research fellows, doctoral and master's students, research trainees, and non-degree research students.As of 2026
- Associate ProfessorTsuyoshi FurushimaPublications ↗
- Assistant ProfessorDongsheng Fu
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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: “EBSD orientation map of ferrous lath martensite” Tiberio / CC BY-SA 4.0 (cropped)
- Crystal plasticity and inhomogeneous deformation: “Slip bands” Chunan Li / CC BY-SA 4.0 (cropped)
- Surface roughening and ductile fracture: “Ductile Fracture Surface 6061-T6 Al SEM” Bob Clemintime / CC BY-SA 4.0 (cropped)
- Microstructure evolution during forming and recrystallization: “Copper alloy microstructure” Rsaage / CC BY 4.0 (cropped)
- Micro precision press forming and size effects: “Tahanie s pridrzanim” Baran Ivo / CC BY 3.0 (cropped)
- Related lab (Yanagimoto Lab): “Hengersor08” Original uploader was Szalax at hu.wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (Tochigi Lab): “Ernst Ruska Electron Microscope - Deutsches Museum - Munich-edit” J Brew, uploaded on the English-speaking Wikipedia by en:User:Hat'nCoat. / CC BY-SA 3.0 (cropped)
- Related lab (Umeno Lab): “SEM-image-showing-crack-propagation-of-TaCCNTsSiC” Qiaoyun Xie, Sylvanus N. Wosu / CC BY 4.0 (cropped)
- Related lab (Advanced Machining Lab): “Centro cnc cinco ejes” Albertollopisrosa / CC BY-SA 3.0 (cropped)
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