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JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY
vol.66 no.779 December 2025
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Regular Papers
Formability of Ultrafine-grained Steels
……Shiro TORIZUKA, Shohei ENOKIDA, Kazuhiko NODA and Eijiro MURAMATSU 1（213）
Collision Angle and Velocity of Collision Point Calculated by Free Deformation Analysis of Magnetic Pulse Welding Phenomena
……Keigo OKAGAWA, Masaki ISHIBASHI, Ryoya HAYASHI, Taisei NISHIMURA and Takaomi ITOI 10（222）
BULLETIN OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY
vol.8 no.96 December 2025
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Special Issue on JSTP Awards
Essay
Advancements in Testing and Measurement Technologies Supporting Technology
of Plasticity
……Hidemitsu HAMANO 1（673）
Reviews
Development of Advanced Practical Technology for Hot Stamping
……Masahiro KUBO, Masahiro NAKADA, Kazuhisa KUSUMI, Kenichirou OHTSUKA,
Naruhiko NOMURA, Hiroshi FUKUCHI and Shinichiro TABATA 3（675）
Delayed Fracture Resistance of Punched Surfaces in Ultra-High Strength Steel Sheets
……Takashi MATSUNO 8（680）
Development of Fully Automated Forming Process for Aircraft Skin
……Hiroki ORIBE, Takumi WADA, Shunya AZAMI, Takashi KITAHATA, Naoya HIRANO,
Hideki OKADA, Katsuyuki KITAHARA and Tsuyoshi KIMURA 13（685）
Commercialization of New Medical Devices Using Titanium Powder Molding
Technology and Bioactivation Treatment
……Shuntaro TERAUCHI, Hisashi KITAGAKI, Kenji DOI, Tosihiro ABUYAMA, Tatuya
KAKUTANI and Aozora KITAYAMA 18（690）
Development of a New Process for High-Strength Aluminum Hot Forging
……Kazuhiro SUZUKI, Hiroshi TONOZONO, Takehito KOBAYASHI, Chihiro ASAI, Masahiro YAMADA, Masayuki ISOGAWA and Shogo SAKAMOTO 23（695）
Reports
Development of Forging Technology and Contribution to Academic Society
Activities
……Katsuyoshi SAKODA 28（700）
Contributions to JSTP and Tokai Branch Activities
……Hideo MIZUKOSHI 30（702）
Development of Forging Screw Presses and Training of Young Staff in Southeast and South Asia
……Yoshio ENOMOTO 31（703）
Contributions to Development of Theory of Plasticity and Academic Society
Activities
……Kazuyuki SHIZAWA 32（704）
Development of 4-axes Direct Drive Servo Press and Contribution to JSTP
……Chikara MURATA 34（706）
Contributions to Press Forming Technology and Academic Society Activities
……Akihide YOSHITAKE 36（708）
Development of Material Design Technology and Forming Technology of Steel
Sheets and Contribution to JSTP
……Masayoshi SUEHIRO 38（710）
Contribution to Development of Plasticity Processing Engineers through
Continuous Practical Seminars at Tokai Branch
……Takeshi YAMADA 39（711）
Relearning Program for Working Adults in SUWA Area
……Noboru NAKAYAMA 41（713）
Development for Applying Ultra-high Strength Steel Sheets to Automotive
Parts
……Hiroto MIYAKE 43（715）
Research, Development, and Practical Applications of Differential Thickness
Forming Technology for Steel Sheets
……Shuichi IWANAGA 45（717）
Effect of Cr Concentration on Oxide Scale Composition and Wear Resistance in Hot Rolling Tool
……Jun AKAIKE 47（719）
Development of a Method for Determining Flow Curve Contributing to High
Accuracy Analysis of Cold Forging
……Atsushi SUZUKI 49（721）
Improvement of Press Formability and Product Strength in Mild Steel Sheets
Through Partial Microstructure Control
……Mizuki TSUBOI 51（723）
Controlling Dimensions and Surface Roughening of Metal Tubes in Die and Die-less Forming
……Takuma KISHIMOTO 53（725）
Contribution to Research and Development of Steel Product Manufacturing
Process
……Mitsuaki SAITO 55（727）
Research and Development Support and Skills Inheritance for Steel Sheet
Processing Technology
……Yoshihiko MASUO 56（728）
Microscopic Analysis of Damage Mechanisms in TRIP-aided Ultra-high Strength Steel
……Takahiro SATO 58（730）
Reduction in Nonuniform Deformation of Hollow Cylindrical Workpiece in
Upsetting with Torsional Oscillation
……Hisatoshi UEMATSU 60（732）
Fabrication of Functional Titanium Corrugated Cup Using Roller Ball Die
……Shota OKADA 62（734）
Proposal of a Friction Test Method Simulating Press Forming of High Tensile Strength Steel Sheets
……Yusei OTAKE 64（736）
Hemisphere-Headed Punch Drawing Analysis of 6000-Series Aluminum Alloy
Sheet Using Material Models Considering Strength Differential Effect
……Kaisei AKIYAMA 66（738）
Large-Scale Void Closure Behavior in the Normal Direction during Hot Rolling
and Its Numerical Simulation
……Mingchuan HOU 68（740）
Toolpath Modification for Incremental Forming by AI
……Kohei NOBATA 70（742）
Development of Rope-type Cruciform Biaxial Tensile Testing Equipment Using
Universal Testing Machine
……Kazuto FUJIYA 72（744）
Evaluation and Modeling of Plastic Deformation behavior of Metallic Materials
in Various Deformation Modes
……Sho SATO 74（746）
Analysis on High Temperature Mechanical Properties of Additively Manufactured Inconel 718 by Synchrotron Radiation
……Ryota OKITSU 76（748）
Assimilation Analysis of Sheared Edge Profiles via Non-parametric Point-plot
Based Ductile Fracture Loci
……Yasuhiro KUNII 78（750）
Influence of Impact Angle and Thickness on Deformation of Axially Compressed
Aluminum Square Tubes
……Itsuki MARUYAMA 80（752）
Research on Deformation Behavior and Cracking Limits of Tubes during Hole Expansion
……Koki KOJIMA 82（754）
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