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Extreme Machining Lab
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The lab uncovers the phenomena that appear in ultra-high-speed cutting.
AboutAbout the lab
Exploring what happens in ultra-high-speed cutting
The Extreme Machining Lab studies the mechanics of cutting, in which material is removed at high and ultra-high speeds, and the phenomena that arise in the process.
In ultra-high-speed cutting, where the cutting speed exceeds the speed at which plastic waves propagate, the lab investigates the physical phenomena that occur when a plastic shock wave travels through the plastic shear zone.
Using a finite element method simulation program developed by Associate Professor Shinozuka, the lab calculates how stress waves propagate and how the cutting process unfolds.
On the lab's website, it is introduced under the name "Dr. SHINOZUKA Jun's Laboratory".
Key terms
- Cutting (machining)
- A manufacturing method in which material is removed with a cutting tool to finish it into a desired shape
- Plastic wave
- A phenomenon in which irreversible deformation (plastic deformation) occurring in a material propagates as a wave
- Finite element method
- A method of dividing an object into small elements and using a computer to calculate deformation, stress, temperature, and other quantities
- Elastomer
- A polymer material with rubber-like elasticity
ResearchResearch themes
The lab studies the phenomena that appear when cutting speed is raised to high and ultra-high speeds, as well as the dynamic behavior of materials. It also works on cutting soft materials, estimating tool condition with AI, and developing tools that can measure temperature and stress.
*Illustrative imageCutting soft materials at room temperature
This research aims to improve the cutting performance when low-stiffness elastomers are cut as they are, at room temperature.
*Illustrative imageEstimating tool wear with AI
This research uses AI technology to estimate how much a tool has worn during cutting.
*Illustrative imageSmart tools that measure temperature and stress
The lab is developing smart cutting tools that can measure the distribution of temperature and stress at the contact area between the tool and the chip during cutting.
*Illustrative imageUnderstanding the dynamic behavior of materials through cutting
This research captures the dynamic behavior of materials through the machining process of cutting.
MembersFaculty
- Associate ProfessorJun Shinozuka
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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: “Cutting Metal Pipe at Ridgid Tools” toolstop / CC BY 2.0 (cropped)
- Cutting soft materials at room temperature: “Milling machine cutter storage from scrap HDPE Cutting boards 11” 1957Man / CC BY-SA 4.0 (cropped)
- Estimating tool wear with AI: “2mm diamond drill bits macro” Junkyardsparkle / CC0 (cropped)
- Smart tools that measure temperature and stress: “Single edge cutting tools” Progress and Poverty / CC BY 4.0 (cropped)
- Understanding the dynamic behavior of materials through cutting: “HwacheonCentreLathe 460x1000” Glenn McKechnie / CC BY-SA 3.0 (cropped)
- Related lab (流体生産システム研究室): “Shear Flow Vortices” KarlGaff / CC BY 4.0 (cropped)
- Related lab (数値材料力学研究室): “Fluid-Structure-Interaction-Topology-Optimization-2” Chrlundg / CC BY-SA 4.0 (cropped)
- Related lab (応用固体力学研究室): “Friction-Driven Encoder Test (encoder 04-CC)” International Gemini Observatory/NOIRLab/NSF/AURA / CC BY 4.0 (cropped)
- Related lab (流体工学研究室): “MDH turbine pump top view” Adakiko / CC BY-SA 4.0 (cropped)
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