Masato Okada, Shin Terada, Masayoshi Shinya, Toshihiko Sasaki, Yuki Kataoka,
Takeshi Kihara, Takuya Miura, Masaaki Otsu, Surface finishing and enhancement
of Ni-based alloy using sliding burnishing with active rotary tool, The
International Journal of Advanced Manufacturing Technology, Vol. 107, pp.
4661-4676, 2020. https://doi.org/10.1007/s00170-020-05329-3
Wei Jiang, Takuya Miura, Masato Okada, Ryo Matsumoto, Masaaki Otsu, Improvement
of forming limit in height with alternating tool path in penetrating tool
friction stir incremental forming, Materials Transactions, Vol. 61, No.
5, pp. 1000-1007, 2020. doi.org/10.2320/matertrans.P-M2020807.
国際会議
Masato Okada, Shin Terada, Yuki Kataoka, Takeshi Kihara, Takuya Miura,
Masaaki Otsu, Burnishing characteristics of sliding burnishing process
with active rotary tool targeting stainless steel, Proceedings of the JSME
2020 Conference on Leading Edge Manufacturing/Materials and Processing
(LEMP2020), LEMP2020-8515, pp. 1-6, 2020.
Masato Okada, Reiji Suzuki, Hidehito Watanabe, Masaaki Otsu, Takuya Miura,Cutting
characteristics of direct milling of cemented tungsten carbides using diamond-coated
carbide end mills with untreated and treated cutting edge, International
Journal of Automation Technology, 13, 1, pp. 58-66, 201901, doi: 10.20965/ijat.2019.p0058
Masato Okada, Makoto Shinke, Takuya Kitagawa, Tomoaki Inoue, Satoshi Yasutani,
Takuya Miura, Masaaki Otsu, Influence of tool feed conditions on surface
integrity in roller burnishing with rolling and sliding effects, Key Engineering
Materials, 825, pp. 13-18, 2019.
Masato Okada, Ryosuke Shida, Hidehito Watanabe, Takuya Miura, Masaaki Otsu,
Direct drilling of cemented tungsten carbide using diamond-coated carbide
drill under ultrasmall feed rates, Journal of the Japan Society for Precision
Engineering, Vol. 85, No. 10, pp. 866-872, 2019, doi: 10.2493/jjspe.85.866
Wei Jiang, Takuya Miura, Masaaki Otsu, Masato Okada, Ryo Matsumoto, Hidenori
Yoshimura, Takayuki Muranaka, Development of Penetrating Tool Friction
Stir Incremental Forming, Material Transactions, Vol. 60, No. 11, pp. 2416-2425,
2019. doi.org/10.2320/matertrans.P-M2019841
国際会議
Masato Okada, Hayato Minamidani, Masayoshi Shinya, Hidehito Watanabe, Takuya
Miura, Masaaki Otsu, Fundamental cutting characteristics of hardened die
steel using cBN ball-nose end mill with burnishing surface, Proceedings
of the 8th International Conference of Asian Society for Precision Engineering
and Nanotechnology (ASPEN2019), D07, pp. 1-2, 2019.
Masato Okada, Tsubasa Kato, Masaaki Otsu, Hidetake Tanaka, Takuya Miura,Development
of optical-heating-assisted incremental forming method for carbon fiber
reinforced thermoplastic sheet-Forming characteristics in simple spot-forming
and two-dimensional sheet-fed forming-, Journal of Materials Processing
Technology, 256, pp. 145-153, 2018, DOI: 10.1016/j.jmatprotec.2018.02.014
Masato Okada, Makoto Shinke, Masaaki Otsu, Takuya Miura, Kuniaki Dohda,
Influence of various conditions on quality of burnished surface in developed
roller burnishing with active rotary tool, International Journal of Automation
Technology, 12, 6, pp. 921-929, 2018, DOI: 10.20965/ijat.2018.p0921
国際会議
Masato Okada, Reiji Suzuki, Atsuyuki Kondo, Hidehito Watanabe, Takuya Miura,
Masaaki Otsu, Evaluation of finished surface of cemented carbide by direct
cutting using diamond-coated carbide end mill, Procedia CIRP, 77, pp. 114-117,
2018, DOI: 10.1016/j.procir.2018.08.234
Masato Okada, Kohei Kato, Houichi Kitano, Takuya Miura, Masaaki Otsu, Kuniaki
Dohda, Fundamental estimation method of drilling characteristics using
carbon fiber reinforced thermoplastics with unidirectional fiber, Proceedings
of 2018 International Symposium on Flexible Automation, pp. 1-2, 2018.
Masato Okada, Shin Terada, Takuya Miura, Yoshiro Iwai, Takuya Takazawa,
Yuki Kataoka, Takeshi Kihara, Masaaki Otsu, Fundamental burnishing characteristics
of Ni-based alloy using coated carbide tool, Procedia Manufacturing, 15,
pp. 1278-1283, 2018.
Takayuki Muranaka, Yusuke Fujita, Masaaaki Otsu, Osamu Haraguchi, Development
of rubber-assisted stretch bending method for improving shape accuracy,
Procedia Manufacturing, 15, pp. 709-715, 2018.
Masato Okada, Makoto Shinke, Takuya Kitagawa, Tomoaki Inoue, Satoshi Yasutani,
Takuya Miura, Masaaki Otsu, Influence of tool feed conditions on surface
integrity in roller burnishing with rolling and sliding effects, Proceedings
of International Conference on Machining, Materials and Mechanical Technologies
(IC3MT), pp. 513-517, 2018.
Masato Okada, Ryosuke Shida, Hidehito Watanabe, Takuya Miura, Masaaki Otsu,
Fundamental drilling characteristics of cemented carbide with diamond-coated
carbide drill, Proceedings of 17the International Conference on Precision
Engineering (ICPE), B-1-5, 2018.
Masaaki Otsu, Yuma Ono, Takuya Miura, Masato Okada, Effect of sheet fixing
method on springback in incremental forming, Proceedings of the 5th Asian
Symposium on Materials and Processing (ASMP2018), pp. 80-81, 2018.
Masato Okada, Masayoshi Shinya, Hiromu Matsubara, Hiroaki Kozuka, Hiroshi
Tachiya, Naoki Asakawa, Masaaki Otsu, Development and characterization
of diamond tip burnishing with a rotary tool, Journal of Materials Processing
Technology, Vol. 244, pp. 106-115, 2017, DOI: http://dx.doi.org/10.1016/j.jmatprotec.2017.01.020.
Masato Okada, Yuki Miyagoshi, Masaaki Otsu, Roller burnishing method with
active rotation tool - Better surface finish than conventional roller burnishing
-, Key Engineering Materials, Vol. 749, pp. 9-14, 2017, DOI: 10.4028/www.scientific.net/KEM.749.9.
国際会議
Masaaki Otsu, Tomoro Uchiyama, Masato Okada, Hidenori Yoshimura, Ryo Matsumoto,
Takayuki Muranaka, Friction stir incremental forming of preformed sheets
with improving bending stiffness, Procedia Engineering, 183, pp. 131-136,
2017.DOI: 10.1016/j.proeng.2017.04.035
Masaaki Otsu, Hiroshi Goto, Masato Okada, Hidenori Yoshimura, Ryo Matsumoto,
Takayuki Muranaka, Improvement of forming accuracy using pre-formed shape
by friction stir incremental forming, Proceedings of the 6th JSME/ASME
International Conference on Materials and Processing 2017, 4388, pp. 1-4,
2017.
Masato Okada, Makoto Shinke, Masaaki Otsu, Takuya Miura, Kuniaki Dohda,
Flattening mechanisms through roller burnishing by Active rotary tool,
Proceedings of the 6th European Conference on Tribology, pp. 1-2, 2017.
(Invited) Masaak Otsu,Yuanshuang Song, Masato Okada, Hidenori Yoshimura,
Ryo Matsumoto,Takayuki Muranaka, Forming and joining simultaneous processing
of stacked magnesium alloy and pure aluminum sheets in layer by friction
stir incremental forming, International Conference on Frontiers in Materials
Processing, Applications, Research & Technology (FiMPART'17), Bordeaux,
7th-12th July, 2017.
Wei Jiang, Takuya Miura, Masaaki Otsu, Masato Okada, Ryo Matsumoto, Hidenori
Yoshimura, Takayuki Muranaka, Development of friction stir incremental
forming process using penetrating tool, Procedia Engineering, 207, pp.
789-794, 2017.
Masato Okada, Tsubasa Kato, Masaaki Otsu, Hidetake Tanaka, Takuya Miura,
Development of optical-heating-assisted incremental forming method for
CFRTP sheet - Fundamental forming characteristics in spot-forming -, Procedia
Engineering, 207, pp. 813-818, 2017.
Masato Okada, Akihiro Yoshida, Tatsuaki Furumoto, Hidehito Watanabe, Naoki
Asakawa, Masaaki Otsu, Mechanisms and characteristics of direct cutting
of tungsten carbide using a diamond-coated carbide end mill, International
Journal of Advanced Manufacturing Technology, Vol. 86, Issue 5, (2016),
1827-1839, DOI: 10.1007/s00170-015-8324-3.
Masato Okada, Masayoshi Shinya, Hidetake Tanaka, Naoki Asakawa, Masaaki
Otsu, Measurement of tool temperature in burnishing using diamond tip,
Mechanical Engineering Journal, Vol. 3, No. 2, (2016), 1-12, DOI:10.1299/mej.15-00569.
Masaaki Otsu, Excellent formability of light metals sheets by friction
stir incremental forming, Key Engineering Materials, Vol. 716 (2016) pp.
3-10, DOI:10.4028/www.scientific.net/KEM.716.3
Masato Okada, Takuma Hirokawa, Naoki Asakawa, Masaaki Otsu, Influence of
burnishing conditions on burnishing force and application of coated roller
in inclined roller burnishing, Key Engineering Materials, Vol. 716 (2016)
pp. 435-442, DOI: 10.4028/www.scientific.net/KEM.716.435
伊東孝史, 峯洋二, 大津雅亮, 高島和希, 走査型白色干渉計を用いた引張負荷下における微小構造体のひずみ分布測定, 日本金属学会誌, Vol.
80, No, 1 (2016), pp. 22-26.
Takashi Ito, Yoji Mine, Masaaki Otsu, Kazuki Takashima, Strain measurement
of micrometre-sized structures under tensile loading by using scanning
white-light interferometry, Materials Transactions, Vol. 57, No. 8 (2016),
pp. 1252-1256.
国際会議
Masato Okada, Yuki Miyagoshi, Masaaki Otsu, New roller burnishing method
with driven rotary tool, Proceedings of the 2nd International Conference
on Machining, Materials and Mechanical Technologies, (2016), pp. 1-4.
Masayoshi Shinya, Masato Okada, Hiroaki Kozuka, Hiroshi Tachiya, Naoki
Asakawa, Masaaki Otsu, Proposal of tip burnishing process using coated
carbide tool, Proceedings of the 16th International Conference on Precision
Engineering, (2016), pp. 1-2.
講演論文
峯村聡,新谷正義,松原拡,岡田将人,小塚裕明,立矢宏,浅川直紀,大津雅亮,工具回転機能を有したダイヤモンドチップバニシグ加工の基礎的検討 -光沢度による仕上げ面評価
光沢度による仕上げ面評価-,日本機械学会北陸信越支部第53期総会・講演会講演論文集,601 (2016) pp. 1-5.
Masaaki Otsu, Yuanshuang Song, Masato Okada, Hidenori Yoshimura, Ryo Matsumoto,
Takayuki Muranaka, Forming and joining simultaneous processing of two sheet
metals by friction stir incremental forming, 日本塑性加工学会第25回北陸支部講演会, 105 (2016)
pp. 9-12.
大津雅亮,内村友郎,岡田将人,吉村英徳,松本良,村中貴幸,予備成形により曲げ剛性を向上させた板材の摩擦攪拌インクリメンタルフォーミング,日本塑性加工学会第25回北陸支部講演会,106
(2016) pp. 13-14.
加藤翼,岡田将人,田中秀岳,大津雅亮,CFRTP板材の光加熱援用インクリメンタルハンマリング成形法の提案,日本塑性加工学会第25回北陸支部講演会,107
(2016) pp. 15-16.
新谷正義,岡田将人,新川真人,浅川直紀,大津雅亮,光ファイバ型2色温度計を用いた旋削・バニシング加工の工具温度測定法の提案-旋削における炭素含有切削液の供給効果とバニシング工具の加工点温度検証-,日本塑性加工学会第25回北陸支部講演会,107
(2016) pp. 23-24.
新谷正義,岡田将人,小塚裕明,立矢宏,浅川直紀,大津雅亮,工具回転機能を有したバニシング加工の基礎的検討-コーテッド超硬工具の適用-,2016年度精密工学会春季大会学術講演会講演論文集,H44
(2016) pp. 613-614.
大津雅亮,内村友郎,岡田将人,吉村英徳,松本良,村中貴幸,予備成形により曲げ剛性を向上させた板材の摩擦攪拌インクリメンタルフォーミング,平成28年度塑性加工春季講演会講演論文集,503
(2016) pp. 199-200.
森成秀,松本良,大津雅亮,宇都宮裕,粉末を表面気孔に充填した発砲アルミニウム表面への摩擦攪拌インクリメンタルフォーミング,平成28年度塑性加工春季講演会講演論文集,504
(2016) pp. 201-202.
Masaaki Otsu, Wei Jiang, Takayuki Muranaka, Ryo Matsumoto, Masato Okada, Friction stir incremental forming of aluminum alloy, Proceedings of the 4th Asian Symposium on Materials and Processing (ASMP2015), B16.5, 2015.
Masato OKADA, Masayoshi SHINYA, Kei WATANABE, Hiroaki KOZUKA, Hiroshi TACHIYA,
Masaaki OTSU, Diamond burnishing process with rotary tool (Fundamental
considerations of burnishing characteristics), Proceedings of the 8th International
Conference on Leading Edge Manufacturing in 21st Century (LEM21), No. 2506,
2015.
Masato Okada, Masayoshi Shinya, Hidetake Tanaka, Naoki Asakawa, Masaaki
Otsu, Measurement of tool temperature in burnishing using diamond tip,
Proceedings of the 4th Asian Symposium on Materials and Processing (ASMP2015),
B3.4, 2015.
Takuma Hirokawa, Masato Okada, Naoki Asakawa, Masaaki OTSU, Measurement
of burnishing force and application of coated roller in inclined roller
burnishing method, Proceedings of the 19th International Conference on
Mechatronics Technology, 2015.
Masaaki Otsu, 「部門表彰(国際貢献部門): Materials and Processing Division, Certificate
of Merit for International Activities」, 4th Asian Symposium on Materials
and Processing (ASMP2015),2015年8月12日
Jiang Wei, Best poster award, 4th Asian Symposium on Materials and Processing
(ASMP2015),2015年8月12日, Friction stir incremental forming of aluminum alloy
R. Matsumoto, H. Tsuruoka, M. Otsu, H. Utsunomiya, Fabrication of Nonporous
Layer on Surface of ALPORAS by Friction Stir Incremental Forming, Procedia
Materials Science, 4(2014), 239-243.
Ryo Matsumoto, Hiroyuki Tsuruoka, Masaaki Otsu, Hiroshi Utsunomiya, Fabrication
of Skin Layer on Aluminum Foam Surface by Friction Stir Incremental Forming
and its Mechanical Properties, Journal of Materials Processing Technology,
(2014), doi:10.1016/j.jmatprotec.2014.11.030
国際会議
Masaaki Otsu, Yosuke Katayama, Takayuki Muranaka, Ryo Matsumoto, Finite
Element Analyses of Conventional Single Point Incremental Forming and Friction
Stir Incremental Forming of Aluminum Alloy Sheets, Proceedings of the JSME/ASME
2014 International Conference on Materials and Processing ICMP2014, (2014)
Masaaki Otsu, Yosuke Katayama, Takayuki Muranaka, Effect of Difference
of Tool Rotation Direction on Forming Limit in Friction Stir Incremental
Forming, Key Engineering Materials, 622-623(2014), 390-397.
Yoshinori Sasaki, Masaaki Otsu, Masami Matsumura, Kazuyuki Morishita, Taiki
Tanaka, Hideki Yagi, Yuichiro Sekine, Motoo Asakawa, Deriving Position
of Bending Roll by Experiment and Analysis (High Precision Roll Bending
of Titanium Alloy Wire for Glasses Frame), Procedia Engineering, 81(2014).
Takayuki Muranaka, Hideyo Miyoshi, Takeshi Kihara, Masaaki Otsu, Osamu
Haraguchi, An Evaluation of The Seizure Process for Pure Titanium by A
Draw Bending Method, Procedia Engineering, 81(2014).
Takuro Ogawa, Masaaki Otsu, Takayuki Muranaka, Evaluation of Residual Stress
of Formed Sheets by Friction Stir Incremental Forming, Abstract of ISAMPE2013,
(2013).
Masaaki Otsu, 4.Yosuke Katayama, Takayuki Muranaka, Effect of Difference
of Tool Rotation Direction on Forming Limit in Friction Stir Incremental
Forming, Abstract of ISAMPE2013.
Keisuke Ito, Masaaki Otsu, Takayuki Muranaka, Multi Stage Fabrication of
SUS304 Sheet Using Servo Press, Abstract of ISAMPE2013, (2013).
Keigo Hamano, Masaaki Otsu, Takayuki Muranaka, Finite Element Analysis
of Rotary Swaging Process for SUS304 Round Bar, Abstract of ISAMPE2013,
(2013).
Seiya Ichikawa, Masaaki Otsu, Takayuki Muranaka, Effect of Tool Posture
on Forming Limit in Friction Stir Incremental Forming, Abstract of ISAMPE2013,
(2013).
Masato Okada, Shohei Suenobu, Kei Watanabe, Naoki Asakawa, Novel roller
burnishing method with sliding effect, Proceedings of the 17th International
Conference on Mechatronics Technology, (2013), 128-131.
Yurie Okugawa, Naoki Asakawa, Masato Okada, Development of Orthros, free
curved plate thickness measurement system -Generation of path considering
continuity of postures-, Proceedings of the 17th International Conference
on Mechatronics Technology, (2013), 132-136.
Naoki Asakawa, Masato Okada, Yoshimasa Kuriyama, Automatic path generation
for a deburring robot using image processing, Proceedings of the 17th International
Conference on Mechatronics Technology, (2013), 289-294.
Towa Tsubokawa, Naoki Asakawa, Masato Okada, Hiromi Nojiri, Sayaka Matsumura,
Automation of soil mixing for soil test by using industrial robot, Proceedings
of the 7th International Conference on Leading Edge Manufacturing in 21st
Century, D008(2013), 485-488.
Yurie Okugawa, Naoki Asakawa, Masato Okada, Development of Orthros, an
evaluation system for free curved plate thickness with a robot ?Selection
of representative points for appropriate interpolation-, Proceedings of
the 7th International Conference on Leading Edge Manufacturing in 21st
Century, A031(2013), 147-152.
Ryo Matsumoto, Masaaki Otsu, Michiaki Yamasaki, Tsuyoshi Mayama, Hiroshi
Utsunomiya, Yoshihito Kawamura, Application of Mixture Rule to Finite Element
Analysis for Forging of Cast Mg-Zn-Y Alloys with Long Period Stacking Ordered
Structure, Materials Science & Engineering A, 548(2012), 75-82.
Masaaki Otsu, Hiroto Arai, Mitsuhiro Matsuda, Kazuki Takashima, Friction Stir Incremental Forming of Titanium Sheets, Steel Research International, Special Edition (2012), 419-422.
国際会議
(Invited talk) Masaaki OTSU, Mitsuteru YASUNAGA, Mitsuhiro MATSUDA, Kazuki
TAKASHIMA, Formability of A2017 Aluminum Sheets by Friction Stir Incremental
Forming, Abstract of The 3rd Asian Simposium on Materials and Processing,
(2012), in printing.
Kazuki Takashima, Masaaki Otsu, Micromechanical Characterization of LPSO
Phase in Mg-Zn-Y Alloys, Proceedings of 9th International Conference on
Magnesium Alloys and their Applications, (2012), 743-748.
M. Otsu, T. Ichikawa, M. Matsuda, K. Takashima, Improvement of Formability
of Magnesium Alloy Sheets by Friction Stir Incremental Forming, Steel Research
International, Special Edition (2011), 537-541.
Masaaki OTSU, Yuki IDE, Mitsuhiro MATSUDA, Kazuki TAKASHIMA, Effect of
Forming Conditions on Crystallization in Laser Forming of Palladium Based
Thin Film Metallic Glass, Journal of Solid Mechanics and Materials Engineering,
5-12(2011), 929-937.
H. Yoshimura, S. Matsuyama, M. Matsuda, M. Otsu, K. Takashima: Microfracture Test of Mg12ZnY Intermetallic Compound in Mg-Zn-Y Alloys, MRS Proceedings, 1295 (2011), mrsf10-1295-n05-40, DOI: 10.1557/opl.2011.350.
国際会議
M. Otsu, S. Sakai, T. Onizuka, M. Matsuda, Y. Kawakami, K. Takashima, Nano-Scale
Bending Using Focused Ion Beam, Proceedings of The 6th International Conference
on MicroManufacturing ICOMM/2011, (2011), 567-568.
Masaaki Otsu, Yuki Ide, Mitsuhiro Matsuda, Kazuki Takashima, Effect of
Forming Conditions on Crystallization in Laser Forming of Palladium Based
Thin Film Metallic Glass, Proceedings of the JSME/ASME International Conference
on Materials and Processing ICM&P2011, (2011), ICMP2011-511574.
H. Yoshimura, S. Matsuyama, M. Matsuda, M. Otsu, K. Takashima: Microfracture
Test of Mg12ZnY Intermetallic Compound in Mg-Zn-Y Alloys, MRS Proceedings,
1295 (2011), mrsf10-1295-n05-40.
K. Takashima, M. Otsu, Microscale Mechanical Testing of Mg-Zn-Y Alloys
Abstracts for THERMEC'2011, (2011), 305.
Ryo Matsumoto, Masaaki Otsu, Michiaki Yamasaki, Tsuyoshi Mayama, Hiroshi
Utsunomiya, Yoshihito Kawamura, Finite Element Analysis with Consideration
of Mixture Rule for Forging of Cast Mg-Zn-Y Alloys with Long Period Stacking
Ordered Phase, Abstract of 4th Asian Symposium on Magnesium Alloys, October
2-4 Busan (2011), 53-54.
R. Matsumoto, M. Otsu, M. Yamasaki, T. Mayama, H. Utsunomiya, Y. Kawamura,
Mixture Rule of Flow Stress Curves of Mg-Zn-Y Alloys with Long Period Stacking
Ordered Phase in Forging, Proceedings of the International Symposium on
Materials Science and Innovation for Sustainable Society -Eco-materials
and Eco-innovation Global Sustainability- (ECO-MATES 2011), 1(2011), 79-80.
(Invited) Masaaki Otsu, Tsukasa Ichikawa, Mitsuhiro Matsuda, Kazuki Takashima,
Comparison of Formability between AZ31, AZ61 and AZ80 Magnesium Alloy Sheets
by Friction Stir Incremental Forming, Abstracts of The 6th KU-KITECH Symposium
on Bulk Metallic Glasses and Advanced Materials, (2010), 5.
Hajime Yoshimura, Shun Matsuyama, Masaaki Otsu, Kazuki Takashima, Yoshihito
Kawamura, Fracture Behavior of Advanced Magnesium Alloys, Abstracts of
The 6th KU-KITECH Symposium on Bulk Metallic Glasses and Advanced Materials,
(2010), 30.
Y. Nagatomi, M. Otsu, K. Takashima, Y. Kawamura, Micro-tensile Testing
of Extruded Mg-Zn-Y Alloys, Abstracts of The 6th KU-KITECH Symposium on
Bulk Metallic Glasses and Advanced Materials, (2010), 31.
(Keynote Lecture) Masaaki Otsui, Flexible Forming of Sheets and Foils by
Laser Forming, Steel Research International, 81-9(2010), 908-913.
K. Tkashima, M. Otsu and M. Matsuda, Microscale Mechanical Testing of Microstructural
Constituents in Materials, International Workshop on Structural Integrity
& Materials Behaviour at Micro- & Nano-Scale WCEAM 2010 Congress
Handbook, (2010) 31.
Hajime Yoshimura, Shun Matsuyama, Masaaki Otsu, Kazuki Takaashima, Yoshihito
Kawamura, Fracture Behavior of Mg-Zn-Y Alloys, Proceedings of The 5th Pan-Yellow
Sea Rim International Symposium on Magnesium Alloys, (2010), 28.
Yuichi Nagatomi, Masaaki Otsu, Kazuki Takaashima, Yoshihito Kawamura, Microtensile
Testing of Mg-Zn-Y Alloys with LPSO Phase, Proceedings of The 5th Pan-Yellow
Sea Rim International Symposium on Magnesium Alloys, (2010), 33.
Shun Matsuyama, Hajimee Yoshimura, Masaaki Otsu, Kazuki Takaashima, Yoshihito
Kawamura, Effect of LPSO Phase on Fracture Toughness in a Mg-Zn-Y Alloy
Using Micro Fracture Testing, Proceedings of The 5th Pan-Yellow Sea Rim
International Symposium on Magnesium Alloys, (2010), 35.
Masaaki Otsu, Yuki Ide, Junpei Sakurai, Seiichi Hata, Kazuki Takashima,
Laser Forming of Thin Film Metallic Glass, Journal of Solid Mechanics and
Materials Engineering, 3-2(2009), 387-396.
Ryo Matsumoto, Michiaki Yamasaki, Masaaki Otsu, Yoshihito Kawamura, Forgeability
and Flow Stress of Mg-Zn-Y Alloys with Long Period Stacking Ordered Structure
at Elevated Temperatures, Materials Transactions, 50-4(2009), 841-846.
Jumpei Oka, Masaaki Otsu, Kazuki Takashima, Laser Forming of Single Crystalline
Silicon Foils, Journal of Solid Mechanics and Materials Engineering, 3-4(2009),679-690.
Masaaki Otsu, Akira Ishii, Kazuki Takashima, Laser Forming of Tailored
Blanks of High Tensile Strength Steels, Journal of Solid Mechanics and
Materials Engineering, 3-12(2009),1312-1321.
Takayuki Muranaka, Masato Okada, Yasunori Kinuya, Stretch-draw forming
process using stepped blank holder to reduce the production energy, Journal
of Ecotechnology Research, 15-1(2009), 27-30.
国際会議
Daisuke Miyaguchi, Masaaki Otsu, Kazuki Takashima, Masao Takeyama, Microscale
Fracture Toughness Testing of TiAl PST Crystals, Advanced Intermetallic-Based
Alloys for Extreme Environment and Energy Applications, edited by M. Palm,
B.P. Bewlay, M. Takeyama, J.M.K. Wiezorek, Y-H. He (Mater. Res. Soc. Symp.
Proc. Volume 1128, Warrendale, PA, 2009), (2009), 1128-U05-14.
Kwangsik Kwak, Masaaki Otsu, Kazuki Takashima, Resonance Fatigue Testing
of Cantilever Specimens Prepared from Thin Films, Microelectromechanical
Systems-Materials and Devices II, edited by S.M. Spearing, S. Vengallatore,
N. Sheppard, J. Bagdahn (Mater. Res. Soc. Symp. Proc. Volume 1139, Warrendale,
PA, 2009), (2009), 1139-GG03-17.
Yuki Ide, Masaaki Otsu, Junpei Sakurai, Seiichi Hata, Kazuki Takashima,
Bending of Pd-Based Thin Film Metallic Glasses by Laser Forming Process,
Microelectromechanical Systems-Materials and Devices II, edited by S.M.
Spearing, S. Vengallatore, N. Sheppard, J. Bagdahn (Mater. Res. Soc. Symp.
Proc. Volume 1139, Warrendale, PA, 2009), (2009), 1139-GG03-18.
(Invited Talk) Masaaki Otsu, Akira Ishii, Kazuki Takashima, Laser Forming
of Tailored Blanks of High Tensile Strength Steels, Proceedings of Asian
Symposium on Materials and Processing 2009, (2009), CD.
(Invited Talk) Kazuki Takashima, Masaaki Otsu, Micromechanical Testing
of Microconstituents in Mg Alloys, Abstract 5th KITECH-KU Symposium on
Bulk Metallic Glasses and Advanced Materials, (2009), INV-06.
Masaaki Otsu, Yuki IDE, Junpei Sakurai, Seiichi Hata, Kazuki Takashima,
Micro-Laser Forming of Pd-Based Thin Film Metallic Glasses, Abstract 5th
KITECH-KU Symposium on Bulk Metallic Glasses and Advanced Materials, (2009),
Oral-13.
Masaaki Otsu, Tsukasa Ichikawa, Mitsuhiro Matsuda, Kazuki Takashima, Development
of Friction Stir Incremental Forming for Mg Alloy Sheets, Abstract 5th
KITECH-KU Symposium on Bulk Metallic Glasses and Advanced Materials, (2009),
Poster-23.
Matsuyama Shun, Sakamoto Tesuya, Otsu Masaaki, Takashima Kazuki, Kawamura
Yoshihito, Micro-Scale Fracture Testing of Mg-Zn-Y Alloys with LPSO Phase,
Abstract 5th KITECH-KU Symposium on Bulk Metallic Glasses and Advanced
Materials, (2009), Poster-25.
Yuichi Nagatomi, Tetsuya Sakamoto, Yuji Kawakami, Masaaki Otsu, Kazuki
Takashima, Yoshihito Kawamura, Micro-Tensile Testing of Mg-Zn-Y Alloys
Including LPSO Phase, Abstract 5th KITECH-KU Symposium on Bulk Metallic
Glasses and Advanced Materials, (2009), Poster-27.
S. Matsuyama, T. Sakamoto, M. Otsu, K. Takashima, Y. Kawamura, Micro Fracture
Testing of Mg-Zn-Y Alloys, Abstracts of the 3rd Asian Symposium on Magnesium
Alloys, (2009), 261.
Y. Nagatomi, T. Sakamoto, Y. Kawakami, M. Otsu, K. Takashima, Y. Kawamura,
Micro-Tensile Testing of Mg-Zn-Y Alloys, Abstracts of the 3rd Asian Symposium
on Magnesium Alloys, (2009), 266.
Masaaki Otsu, Seigo Sakai, Mitsuhiro Matsuda, Yuji Kawakami, Kazuki Takashima,
Development of Nano-Scale Bending Method Using Focused Ion Beam, Proceedings
of 2nd Asian Workshop on Micro/Nano Forming Technology (AWMFT-2009), (2009),
587-589.
(Invited Talk) Masaaki Otsu, Tsukasa Ichikawa, Mitsuhiro Matsuda, Kazuki
Takashima, Application of Friction Stir Incremental Forming to Forming
Mg Alloy Sheets, Abstract book of The 4th Pan-Yellow Sea Rim International
Symposium on Magnesium Alloys, (2009), 21.
Hajime Yoshimura, Shun Matsuyama, Masaaki Otsu, Kazuki Takashima, Yoshihito
Kawamura, Micro-Fracture Testing of Advanced Mg Alloys, Abstract Book of
The 4th Pan-Yellow Sea Rim International Symposium on Magnesium Alloys,
(2009), 42.
Yuichi Nagatomi, Yuji kawakami, Masaaki Otsu, Kazuki Takashima, Yoshihito
Kawamura, Tensile Testing of Mg-Zn-Y Alloys in Micrometer Scale, Abstract
Book of The 4th Pan-Yellow Sea Rim International Symposium on Magnesium
Alloys, (2009), 43.
Masaaki Otsu, Tsukasa Ichikawa, Mitsuhiro Matsuda, Kazuki Takashima, Forming
of Mg Alloy Sheets by Friction Stir Incremental Forming, Abstract Book
of The 4th Pan-Yellow Sea Rim International Symposium on Magnesium Alloys,
(2009), 44.
(Invited Talks) M. Otsu, T. Ichikawa, M. Matsuda, K. Takashima, Development
of Friction Stir Incremental Forming Process for Forming Sheet Metals,
Proceedings of Processing and Fabrication of Advanced Materials XVIII,
(2009), 1963-1972.
Masaaki Otsu, Yusuke Kai, Kazuki Takashima, Simultaneous Control of Shape
and Properties of AZ31 Magnesium Alloy Sheets by Incremental Forming, Materials
Transactions, 49-5(2008), 1124-1128.
Jumpei Oka, Masaaki Otsu, Kazuki Takashima, Laser Formig of single crystalline
silicon, Proc. The First International Student Conference on Advanced Science
and Technology (ICAST Kumamoto 2008), (2008), 105-106.
Tetsuya Sakamoto, Masaaki Otsu, Kazuki Takashima, Yoshihito Kawamura, Micro
Mechanical Testing of Mg-Zn-Y Alloy, Proc. The First International Student
Conference on Advanced Science and Technology (ICAST Kumamoto 2008), (2008),
107-108.
Yusuke Shimada, Mitsuhiro Matsuda, Masaaki Otsu, Kazuki Takashima, Minoru
Nishida, Kazuhiro Ishikawa, Kiyoshi Aoki, Micromechanical Characterization
of Nb-TiNi Hydrogen Permeation Membrane, Proc. The First International
Student Conference on Advanced Science and Technology (ICAST Kumamoto 2008),
(2008), 109-110.
(Invited Talk) Kazuki Takashima, Masaaki Otsu, Mechanical Testing of Microscale
Materials and Its Application to Micromechanical Characterization of Advanced
Mg Alloys, Proc. 4th KU-KITECH Symposium on Bulk Metallic Glasses and Advanced
Materials, (2008), 12.
Masaaki Otsu, Yuki IDE, Junpei Sakurai, Seiichi Hata, Kazuki Takashima,
Laser Forming of Pd-Based Thin Film Metallic Glass, Proc. 4th KU-KITECH
Symposium on Bulk Metallic Glasses and Advanced Materials, (2008), 30.
Tetsuya Sakamoto, Masaaki Otsu, Kazuki Takashima, Yoshihito Kawamura, Micro-Mechanical
Characterization of Mg-Zn-Y Alloys, Proc. 4th KU-KITECH Symposium on Bulk
Metallic Glasses and Advanced Materials, (2008), 56.
M. Otsu, H. Fukugawa, K. Takashima, Bending of Single Crystalline Silicon
and Borosilicate Glass Foils by Laser Forming, Proc. 9th International
Conference on Technology of Plasticity (ICTP2008), (2008), 1419-1424.
J. Oka, M. Otsu, K. Takashima, Laser Forming of Single Crystalline Silicon,
Proc. 3rd JSME/ASME International Conference on Materials and Processing
(ICM&P 2008), (2008), 72152.
M. Otsu, Y. Ide, J. Sakurai, S. Hata, K. Takashima, Laser Forming of Thin
Film Metallic Glass, Proc. 3rd JSME/ASME International Conference on Materials
and Processing (ICM&P 2008), (2008), 72153.
Y. Shimada, M. Matsuda, Y. Kawakami, M. Otsu, K. Takashima, M. Nishida,
K. Ishikawa, K. Aoki, Micromechanical Testing of Nb20Ti40Ni40 Hydrogen
Permeation Membranes, Proc. 2008 International Symposium on Nano Science
and Technology, (2008), 20-21.
Kwangshik Kwak, Masaaki Otsu, Kazuki Takashima, Resonant Fatigue Testing
of Cantilever Specimens Prepared from Thin Films, Proc. Materials Research
Society Fall Meeting, (2008).
Yuki Ide, Masaaki Otsu, Junpei Sakurai, Seiichi Hata, Kazuki Takashima,
Bending of Pd-based Thin Film Metallic Glasses by Laser Forming Process,
Proc. Materials Research Society Fall Meeting, (2008).
Daisuke Miyaguchi, Masaaki Otsu, Kazuki Takashima, Masao Takeyama, Microscale
Fracture Toughness Testing of TiAl PST Crystals, Proc. Materials Research
Society Fall Meeting, (2008).
(Invited Talk) Masaaki Otsu, Kazuki Takashima, Forming of Magnesium Alloy
Sheets by Dieless Methods, Abstract of The 3rd Pan-Yellow Sea Rim International
Symposium on Magnesium Alloys, (2008), 3.
Tetsuya Sakamoto, Masaaki Otsu, Kazuki Takashima, Yoshihito Kawamura, Micro
Scale Characterization of Advanced Mg Alloys, Abstract of The 3rd Pan-Yellow
Sea Rim International Symposium on Magnesium Alloys, (2008), 32.
Shun Matsuyama, Tetsuya Sakamoto, Masaaki Otsu, Kazuki Takashima, Micro
Fracture Testing of Mg-Zn-Y Alloy, Abstract of The 3rd Pan-Yellow Sea Rim
International Symposium on Magnesium Alloys, (2008), 48.
Daisuke Miyaguchi, Masaaki Otsu, Kazuki Takashima, Micro Fracture Toughness
Testing of a TiAl Based Alloy with a Lamellar Structure, Proc. The 2nd
International Student Conference on Advanced Science and Technology (ICAST
Beijing 2008), (2008), 83-84.
Yuki Ide, Masaaki Otsu, Junpei Sakurai, Seiichi Hata, Kazuki Takashima,
Bending of Pd-Based Thin Film Metallic Glasses by Laser Forming Process,
Proc. The 2nd International Student Conference on Advanced Science and
Technology (ICAST Beijing 2008), (2008), 85-86.
Yuji Kawakami, Fujio Tamai, Takashi Enjoji, Noboru Shikatani, Tatsuya Misawa,
Masaaki Otsu, Kazuki Takashima, In Situ Obserbations of Sintering Process
during Pulsed Current Sintering of Al2O3, ZnO and WC ALLOY, Materials Science
Forum, 534-536(2007), 541-544.
Yuji Kawakami, Fujio Tamai, Takashi Enjoji, Kazuki Takashima, Masaaki Otsu,
Wear Resistance Properties of Tungsten Carbide/ Stainless Steel Composite
Materials Prepared by Pulsed Current Sintering, Materials Science Forum,
534-536(2007), 1573-1576.
Masaaki Otsu, Yasuhiro Ito, Akira Ishii, Hideshi Miura, Kazuki Takashima,
Effect of Heat Treatment and Transformation on Bending Angle in Laser Forming
of Titanium Foils, Key Engineering Materials, 344(2007), 243-250.
Masaaki Otsu, Hiroshi Taniguchi, Kazuki Takashima, Micro-Incremental Forming
of Ti and Au Foils by Indentation Method, Key Engineering Materials, 345-346(2007),
1101-1104.
Eiji Taki, Yuji Kawakami, Masaaki Otsu, Kazuki Takashima, Fracture Behavior
of Micro-Sized Fe-3%Si Alloy Single Crystals, Journal of Solid Mechanics
and Materials Engineering, 1-6(2007), 779-786.
Shogo Izumi, Michiaki Yamasaki, Masaaki Otsu, Yoshihito Kawamura, Use of
Laser Irradiation to Form Anti-Corrosive Surface Oxide Layer on Mg Metal,
Materials Transactions, 48-7(2007), 1965-1968.
K. Takashima, E. Taki, Y. Kawakami, M. Otsu, Effects of Sample Size on
the Fracture Behavior in Fe-3%Si Alloy Single Crystals, in Size Effects
in the Deformation of Materials-Experiments and Modeling, edited by E.
Lilleodden, P. Besser, L. Levine, A. Needleman (Materials Research Socciety
Symp. Proc. 976E, Warrendale, PA, 2007), (2007), 0976-EE03-04.
Masaaki Otsu, Yukari Katayama, Kazuki Takashima, Micro-Bending of AZ31
Magnesium Alloy Foils by Spark Forming, Proceedings of The 2nd Pan Yellow
Sea Rim International Symposium on Magnesium Alloys, (2007), 36.
Tetsuya Sakamoto, Kazuki Takashima, Masaaki Otsu, Micro-Mechanical Testing
of Mg-Zn-Y Alloys, Proceedings of The 2nd Pan Yellow Sea Rim International
Symposium on Magnesium Alloys, (2007), 47.
Masaaki Otsu, Hiroshi Taniguchi, Kazuki Takashima, Micro-Incremental Forming
of Ti Foils by Indentation Method, Ti-2007 Science and Technology (Ed.
M. Ninomi, S. Akiyama, M. Ikeda, M. Hagiwara, K. Maruyama), Proceedings
of The 11th World Conference on Titanium (Ti-2007), (2007), 1099-1102.
Tetsuya Sakamoto, Masaaki Otsu, Kazuki Takashima, Micro Mechanical Characterization
of Mg-Zn-Y Alloys, Extended Abstracts of The 2nd Asian Symposium on Magnesium
Alloys (ASMA2), (2007), 200-201.
Masaaki Otsu, Yusuke Kai, Kazuki Takashima, Simultaneous Control of Shape
and Properties of AZ31 Magnesium Alloy Sheets by Incremental Forming, Extended
Abstracts of The 2nd Asian Symposium on Magnesium Alloys (ASMA2), (2007),
242-243.
Jumpei Oka, Masaaki Otsu, Kazuki Takashima, Laser Forming of Single Crystal
Silicon, Proceedings of Asian Workshop on Nano / Micro Forming Technology,
(2007), 27-28.
Yoshitaka Nishikawa, Tetsuro Takahashi, Masaaki Otsu, Kazuki Takashima,
Effects of Laser Irradiation on Mechanical Properties of a Ni-P Amorphous
Alloy Thin Film, Proceedings of Asian Workshop on Nano / Micro Forming
Technology, (2007), 35-36.
Masaaki Otsu, Hideo Benoki, Kazuki Takashima, Laser Forming of Mg96Zn2Y2
Sheet, Proc. The 3rd KITECH-KU Symposium on Bulk Metallic Glasses and Advanced
Materials, (2006), O-07.
Masaaki Otsu, Hikaru Fukugawa and Kazuki Takashima, Laser Forming of Glass
and Silicon Foils, Proc. ASMP2006, (2006), 48.
Eiji Taki, Kazuki Takashima and Masaaki Otsu, Fracture Behavior of Micro-Sized
Fe-3%Si Alloy Single Crystals, Proc. ASMP2006, (2006), 98.
K. Osakada, R. Matsumoto, M. Otsu, S. Hanami, Precision extrusion methods
with double axes servo-press using counter pressure, Annals of the CIRP,
54-1(2005), 245-248.
国際会議
K. Osakada, M. Otsu, R. Matsumoto, Thermal Forming of Pipes, Proc. 1st
Int. Workshop on Thermal Forming, Bremen, Germany, April 13-14, (2005),
131-138.
M. Otsu, T. Fukunaga, M. Uemura, H. Miura, Laser sintering of low alloy
and tool steel powders, Proc. JSME/ASME Int. Conf. Mater. Process. 2005,
Seattle, June 19-22, (2005), APP-02.
M. Otsu, Y. Katayama, Micro-bending of magnesium alloy foils by spark forming,
Proc. Int. Conf. Technol. Plasticity, (2005), 475-476 CD-ROM.
M. Otsu, D. Hayashida, K. Osakada, S. Hanami, Combined forward-backward
extrusion of gear with reverse extrusion, Proc. 3rd JSTP ISPF, (2004),
119-122.
M. Shiomi, D. Takano, K. Osakada and M. Otsu, Forming of aluminium alloy
at temperatures just below melting point, Int. J. Machine Tools & Manufacture,
43-3(2003), 229-235.
M. Otsu, H. Miura, M. Matsushima, K. Osakada, Three-dimensional laser forming
of sheet metal using triangular patches, Trans. NAMRI/SME, 31(2003), 87-94.
M. Otsu, C. Yamagata, K. Osakada, Reduction of Blanking Noise by Controlling
Press Motion, Annals of the CIRP, 52-1(2003), 245-248.
M. Otsu, D. Hayashida, K. Osakada, S. Hanami, Combined Forward-backward
Extrusion with Reverse Ram Motion -Application to Forging of Gear-, Proc.
ASPF2003, (2003), 158-161.
S. Hanami, R. Matsumoto, M. Otsu, K. Osakada and D. Hayashida, Combined
Forward-backward Extrusion with Controlled Reversal Ram Motion -Effect
of Reversal Ram Motion-, Proc. ASPF2003, (2003), 162-166.
M. Otsu, M. Matsushima, K. Osakada and H. Miura: Laser forming of three-dimensional
shaped sheet metal using triangular patches, Proc. 7th Int. Conf. Tech.
Plasticity, (2002), 1021-1026.
M. Shiomi, D. Takano, M. Otsu, K. Osakada, Forming of aluminium alloy at
around solidus temperature, Proc. 7th Int. Conf. Tech. Plasticity, (2002),
1333-1138.
M. Otsu, K. Osakada and M. Fujii, Controlled laser forming of sheet metal
with shape measurement and using database, Proc. 8th Int. Conf. Metal Forming
(Metal Forming 2000), Krakow, (2000), 433-438.
M. Otsu, K. Osakada, T. Yamada, S. Hanami, T. Watanabe, The use of heat
generated by plastic deformation in multi-stage cold forging process, Proc.
7th Asia Symp. on Precision Forging, Guilin, China, Oct. 22-25, (2000),
31-34.
S. Hanami, K. Osakada, M. Otsu, T. Watanabe, D. Hayashida, Combined forward-backward
extrusion with controlled exit velocity, Proc. 7th Asia Symp. on Precision
Forging, Guilin, China, Oct. 22-25, (2000), 41-44.
M. Otsu, M. Fujii and K. Osakada: Three-dimensional laser bending of sheet
metal, Proc. 6th Int. Conf. Tech. Plasticity, Nuremberg, 2(1999), 1025-1030.
K. Mori, M. Otsu, N. Fujiwara and K. Osakada, Incremental hammering forming
of sheet metal automated using CCD camera and database, Trans. NAMRI/SME,
26(1998), 49-54.
M. Otsu, K. Mori and K. Osakada, Inclusion of pressure of liquid phase
in three-dimensional distinct element simulation of mushy-state forming,
J. Mater. Process. Technol., 80-81(1998), 438-443.
K. Mori, M. Otsu and K. Osakada, Distinct Element Simulation of Grain Alignment
in Mushy-State Forging of Magnets, Int. J. Mech. Sci., 39-7(1997), 771-780.
国際会議
M. Otsu, K. Mori and K. Osakada, Three-dimensional distinct element simulation
of grain alignment in mushy-state forging of magnets, Proc. Complas V,
(1997), 1387-1392.
K. Mori, M. Otsu, N. Fujiwara and K. Osakada, Intelligent Incremental Forming
of Sheet Metal Using CCD Camera, Proc. IPMM'97, Gold Coast, 2(1997), 738-744.
M. Otsu, K. Mori and K. Osakada, Determination of optimum working conditions
in mushy-state upsetting of magnet using distinct element simulation, J.
Mater. Process. Technol., 60, (1996), 691-696.
Ken-ichiro Mori, Masaaki Otsu, Kozo Osakada and Masanori Shiomi, Simulation
of grain alignment in mushy-state forging of magnets by distinct element
method, Proc. NUMIFORM 95, (1995), 1185-1190.
Masaaki Otsu, Ken-ichiro Mori, Kozo Osakada and Masanori Shiomi, Simulation
of grain alignment in plane-strain forging of mushy-state magnets by distinct
element and finite element methods, Proc. Plasticity '95, (1995), 297-300.