板紙, 複合材の型抜き加工に関する研究
Fundamental Mechanics on Paperboard Diecutting

くさび切刃と面板との組合せで行われる、塗工紙などの板紙の抜き型加工は、 牛乳パックや菓子箱等の量産工程で広く使われている。またシール材や フィルム等の抜き加工にも使われる汎用的な加工法である。 このような板紙の打ち抜き加工における刃先摩耗や切れ味特性を知ることは、 工具寿命の予測や生産管理の観点から重要である。 そこで、切れ味特性の調査ならびに工具摩耗特性を実験的に進めるとともに 紙材の基本的な性質を調査し、基礎的な力学特性を追究する。
また、段ボール箱を代表例とする包装箱の強度評価についても、実験ならびに 計算を進めており、予測評価式の確立ならびに諸データの収集を行っている。

Paperboard diecutting, which is constituted with a center bevel blade and a counter plate, is widely used for producing various packages, printing cards, thermal insulation films and labels. They are used for food packages and liquid containers and so on. This cutting method has several merits for processing a large-sized sheet under a high speed transferring, and also has a high precision sizing with a complicated pattern. An important merit of this cutting method is relatively economical with respect to its maintainability. However, this cutting method (mechanics) has some demerits or technical problems to be solved. The sharpness of diecutter and the endurance of cutting tools are always important and interesting from the aspects of industrial engineering. And at the same time, the material properties of worksheet, which is usually laminated with adhesives and glues and/or coated by some colored clays, are important for performing a high quality of sheared profile. Bending of crease and cutting (shearing and stripping) are primary topics. To reduce any dusts is another topic. Mechanical behavior of coated layer on the worksheet and coating technology of tool surface are also included to those topics.
Through various experiments, we observe real behaviors which occurr at a cutting/bending process by using a high performance microscope and measure the load response during the process. And also, we investigate the deformation behavior of the worksheet through an FEM simulation. Cracking phenomena during a half breaking stage, frictional slipping between the worksheet and the tool are discussed.

公表論文等の例 (Examples of published technical papers)

  1. Songtam Laouswan, Shigeru Nagasawa, Development of compressive testing device for glass fiber based single face corrugated structure sheet, and estimation of buckling strength of straight panel of that structure sheet, AIMS Materials Science, Vol.8 No.6, (December 14th, 2021), [881-898], DOI: https://doi.org/10.3934/matersci.2021054.
  2. Shigeo Yanabe, Shigeru Nagasawa, Distribution and change of stresses, slippage, tension, and friction forces in wound rolls (Simulation of center winding without nip)  [巻き取り中のロールの応力，すべり，張力，摩擦力の分布と変化（中心駆動巻き取りシミュレーション）],  Transactions of the JSME (in Japanese), Vol.87, No.904 (2021.Dec.25.), Artcle ID: 21-00322 [1-19], Advance publication (2021,December 06), DOI: https://doi.org/10.1299/transjsme.21-00322
  3. Shigeru Nagasawa, Kouhei Ishii, Itaru Kobayashi, Effects of processing conditions on tearing characteristics of zipper lines of E-flute corrugated paperboard (dependency of length of connecting portions, width of zipper band, phase shift of dashed lines and tearing velocity on tearing characteristics), Journal of packaging science & technology, Japan, Vol.30 No.6, (2021, December 1), [405-414]. http://www.spstj.jp/publication/magazin/bk30.html
  4. Shigeru Nagasawa, Takaomi Nagumo, Azusa Sakamoto, Kazuki Umemoto, Relaxation Characteristics of Creasing Process of Scored Paperboard for Liquid Container, In book: Forming the Future (by Springer), (2021, July 11), [1643-1653], DOI:10.1007/978-3-030-75381-8_138
  5. Shigeru Nagasawa, Masahiro Uehara, Chiharu Matsumoto, Effects of mechanical conditions on tearing characteristics of zipper band made of white-clay-coated paperboard (Dependency of tearing characteristics on length of connecting portions, width of band and pulling direction), Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.15 Issue 1, (2021, February 17th), Paper ID:20-00448 [1-10], DOI: https://doi.org/10.1299/jamdsm.2021jamdsm0009
  6. Shigeo Yanabe, Shigeru Nagasawa, Simulation of winding web on surface winder (Stress distribution, tension and slippage of wound roll), Transactions of the JSME (in Japanese), Vol.86 No.891 (2020, November 25), (2020 October 13) [1-16]. DOI: https://doi.org/10.1299/transjsme.20-00219
  7. Thepwachara RUCHIRABHA, Shigeru NAGASAWA, Effect of anvil profile on cutting characteristics of polystyrene bar subjected to wedge indentation, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.14, Issue 6, (2020, September 21), Paper ID:20-00244, [1-22].  DOI: https://doi.org/10.1299/jamdsm.2020jamdsm0093
  8. Shigeru Nagasawa, Research Prospect of Sheet Processing for Making Boxes from Aspects of Cutting and Folding Mechanics, Journal of Society of Packaging Science and Technology, Japan, Vol. 29, No.4 （2020, August, 1）[257-265]. http://www.spstj.jp/publication/magazin/bk29.html
  9. Nguyen Cong Hanh, Shigeru Nagasawa, Experimental and Numerical Investigation of Cutting Characteristics of PA6/PE Nylon Film Subjected to Wedge Indentation Process, Materials Science Forum (Material Engineering and Manufacturing III), Vol.1009, (August 28th, 2020), [129-134]. (Trans Tech Publication) DOI: https://doi.org/10.4028/www.scientific.net/MSF.1009.129
  10. Nguyen Cong Hanh, Shigeru Nagasawa, Kensei Kaneko, Strength estimation of silicon nitride ceramics using a round-notched specimen subjected to shearing-tool indentation, AIMS Materials Science, (2020, August 20), Vol.7 issue 5: [518–533]. DOI: https://doi.org/10.3934/matersci.2020.5.518
  11. Nguyen Cong Hanh, Shigeru Nagasawa, Cutting characteristics of nylon- polyethylene laminated film subjected to wedge indentation and its thermal dependency, Journal of Advances in Materials and Processing Technologies (Taylor & Francis Online), Vol.6,  (2020, August 5), [1-12], DOI: https://doi.org/10.1080/2374068X.2020.1802555.
  12. Shigeru Nagasawa, Tetsuya Yamamoto, Kazuki Umemoto, Akira Hine, Daishiro Yamaguchi, Estimation of bending characteristics of creased paperboard using 45D tapered groove against unbalanced punch indentation, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.14 No.6, (2020, July 21), Paper No.20-00067, [1-11], DOI: https://doi.org/10.1299/jamdsm.2020jamdsm0083
  13. Thepwachara RUCHIRABHA, Shigeru NAGASAWA, Effect of Wedge Tip Thickness of Nail Clipper on Cutting Characteristics of Polystyrene Ribbon, IOP Conference  Series: Materials Science and Engineering , Vol..859: 012008, (May 1st, 2020), [41-49],  IOP publishing, DOI: https://doi.org/10.1088/1757-899X/859/1/012008
  14. Songtam Laosuwan, Shigeru Nagasawa and Kazuki Umemoto, Development of tensile fixture with corrugated structure sheet and estimation of tensile strength of glass fibre fabrics based single face corrugated structure sheet, AIMS Materials Science, (2020, Feburary, 25), Vol.7 issue 1: [75-92]. DOI: https://doi.org/10.3934/matersci.2020.1.75.
  15. Masami KOJIMA, Shigeru NAGASAWA, Yuichi IGARASHI, Cutting Characteristics of Silicone Rubber Sheet with Respect to Indentation Velocity of Keen Wedge Blade, SOSEI-TO-KAKOU (Journal of the JSTP), Vol.61 No.708 (2020, January 25), [1-6]. DOI: https://doi.org/10.9773/sosei.61.1.
  16. Satoshi Kaneko, Shigeru Nagasawa, Wedge indentation characteristics of pressure-sensitive adhesives sandwiched by polyethylene terephthalate films, Journal of Advanced Mchanical Design, Systems, and Manufacturing, Vol.14, Issue 1 (2020, Jan 22), Paper No. 19-00308, Pages JAMDSM0007 [1-18], DOI: https://doi.org/10.1299/jamdsm.2020jamdsm0007.
  17. Shigeru Nagasawa, Akihiro Yamamoto, Thepwachara Ruchirabha and Kazuki Umemoto, Effects of blade tip profile on in-plane tensile properties of wedge-notched polypropylene sheet, Int. Journal of Automation Technology, Vol.13 No.6 (2019, November 5), [780-786], doi: https://doi.org/10.20965/ijat.2019.p0780.
  18. Thepwachara RUCHIRABHA, Shigeru NAGASAWA, Development of Measurement System of Cutting LoadResponse in Nipper Blade, and Estimation of Wedge Angle Effect on Cutting Characteristicsand Shear Edge Trace of Polystyrene Bars, AIMS Materials Science, Vol.6 Issue.2 (2019, March 11), [139-164]. DOI: https://doi.org/10.3934/matersci.2019.2.139.
  19. Satoshi Kaneko, Shigeru Nagasawa, Estimation of viscoelastic resistance and subduction profile of acrylic based pressure sensitive adhesive sheet subjected to wedge indentation, Journal of Advanced Mechanical Design, Systems, and Manufacturing,Vol.13 Issue 1, (2019), Article ID:18-00336 [1-17], https://doi.org/10.1299/jamdsm.2019jamdsm0019.
  20. Shigeru Nagasawa, Satoshi Kaneko, Dai Adachi, Effects of rotational velocity and hold time at folding posture on time-dependent release behavior of creased white-coated paperboard, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.13 Issue 1, (2019), Article ID:18-00230 [1-10], DOI: https://doi.org/10.1299/jamdsm.2019jamdsm0004.
  21. Satoshi Kaneko, Shigeru Nagasawa, Effect of wedge blade direction on cutting characteristics of anisotropic polyethylene terephthalate film (くさび押抜きにおけるポリエチレンテレフタレートフィルムの切断特性に及ぼす異方性の影響), Transactions of the JSME (in Japanese), Vol.84 No.866 (2018, October 25; early released at September 14), Article ID: 18-00223, pp.1-15, DOI: https://doi.org/10.1299/transjsme.18-00223 .
  22. Satoshi Kaneko, Shigeru Nagasawa, PETフィルムの切断面形状に及ぼす切断方向の影響, JSME Materials and Processing Divison General Award (New technology and development), (2018, September 10). 
  23. Pusit Mitsomwang, Rattana Borrisuttekul, Usanee Kitkamthorn, Shigeru Nagasawa, Investigation of Strain Hardening in Aluminum Alloy Sheared Sheet Based on Microhardness Measurement and FEM Analysis, Int. J. Automation Technol., Vol.12, No.5, (2018, September 5th),  [714-722]. DOI: https://doi.org/10.20965/ijat.2018.p0714.
  24. Weerayut Jina, Shigeru Nagasawa, Finite Element Analysis of Folding Process of Creased White-coated Paperboard using Combination Model of Fluffing Resistance and Shear Yield Glue, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol. 12 Issue.２, (2018, June 26),Article ID: 17-00708 [1-15], DOI: https://doi.org/10.1299/jamdsm.2018jamdsm0063 .
  25. Shigeru Nagasawa, New lecture note for packaging: Pushing process using steel rule and punch (Die-cutting, Form-cutting) , Journal of Packaging Science and Technology, Japan, Vol.27 No.3, (2018, June 1st) [166-175]. http://www.spstj.jp/english/publication/magazin/index.html
  26. Haruya Yokoyama, Shigeru Nagasawa, Folding Characteristics of Multiple-Scored Portion of Corrugated Fiberboard, Transactions on GIGAKU, Volume 5, No.1, Paper ID: 05003-1-7 (2018, April). http://lib.nagaokaut.ac.jp/gigaku-press/wp-content/uploads2018/04/TGVol5-1.pdf
  27. Shigeo YANABE, Shigeru NAGASAWA and Satoshi KANEKO, Simulation of wavy wrinkling of web caused by roller tilt (Change of the number of wrinkles and causes of the onset of the wrinkling), ローラの傾きによって生じるウェブの波しわシミュレーション （傾き角によるしわ数の変化および歪分布や位置の不整としわ発生の関連）, Transactions of the JSME (in Japanese), Vol.84 No.859 (2018, March 25), Article ID: 17-00473, pp.1-18, DOI: https://doi.org/10.1299/transjsme.17-00473
  28. Shigeru Nagasawa, Masahiro Uehara, Chiharu Matsumoto, Effects of Guiding Routes and Grain Direction of White-clay-coated Paperboard on Tearing Characteristics of Zipper Pull Tab, SOSEI-TO-KAKOU, Vol.59 No.684 (February 25, 2018), [15-20], DOI: https://doi.org/10.9773/sosei.59.15
  29. Shigeru Nagasawa, Haruki Kudo, Laosuwan Songtam, Norfariza Wahab and Syotaro Takeda, Tensile characteristics of glass fiber based single face board, Procedia Engineering, 207 (2017) [78–83], https://doi.org/10.1016/j.proeng.2017.10.738 .
  30. Shigeru Nagasawa, Takuya Oyake, Takashi Kajizuka, String-Like Fiber Dust Occurrence in Crush Cutting of Stacked Liner Boards, In book: Frontiers in Materials Processing, Applications, Research and Technology, (January, 2018), [1-15], DOI: http://dx.doi.org/10.1007/978-981-10-4819-7_1
  31. Shigeru Nagasawa, Shearing mechanism of paper/composite plate and diagnosis technology of shearing state, Press working, Vol.55 No.12, [39-43] (November 1st, 2017), Nikkankogyo Newspaper Pub. https://www.fujisan.co.jp/product/2367
  32. Shigeru Nagasawa, Masahiro Uehara, Chiharu Matsumoto, Haruya Kambe, Weerayut Jina, Estimation of Stress and Displacement Around Nick Zone of Zipper Pull Tab Formed on Paperboard, Proceedings of the JSME 2017 International Conference on Materials and Processing, Article ID: ICMP2017-4303 [1-6], (June 4-8, 2017), Los Angeles, CA, USA, https://asme.pinetec.com/msec2017-icmp2017/ICMP2017/data/pdfs/trk-1/ICMP2017-4303.pdf
  33. Weerayut JINA, Shigeru NAGASAWA and Seksan CHAIJIT, Estimation of detaching resistance of a peeled in-plane layer of a white-coated paperboard using fluffing resistance and an isotropic elasticity model, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.11 No.2 (2017, May 18), Article ID: 16-00659 [1-12]. DOI: http://dx.doi.org/10.1299/jamdsm.2017jamdsm0018 .
  34. Akihiko Yamamoto, Satawat Singprayoon, Shigeru Nagasawa, S. Chaijit, Bending behavior of polypropylene sheet subjected to two-line wedge indentation, Transactions on GIGAKU, Vol.4 No.1 (2017. May, 12), Article ID: 04003 [1-9]. http://lib.nagaokaut.ac.jp/gigaku-press/wp-content/uploads/2017/05/TGVol4.pdf
  35. Hanh Cong Nguyen, Shigeru Nagasawa, Kensei Kaneko, Optimizing boundary surface of ceramics die in deep drawing process, Transactions on GIGAKU, Vol.4 No.1 (2017.May,12), Article ID: 04002 [1-7]. http://lib.nagaokaut.ac.jp/gigaku-press/wp-content/uploads/2017/05/TGVol4.pdf
  36. Shigeru Nagasawa, Engineering estimation of time-dependent deformation characteristics as bending moment relaxation and released unfolding motion of creased paperboard, IOP Conference Series: Materials Science and Engineering, Volume 175,conference 1 (2017), 012003. DOI:10.1088/1757-899X/175/1/012003 , http://iopscience.iop.org/1757-899X/175/1/012003
  37. Shigeru Nagasawa, Dai Adachi, Natsuki Sasada, Effect of Holding Time on Time-Dependent Release Behavior of Creased White-Cotaed Paperboard and Analysis of Nonlinear Relaxation Characteristcs, SOSEI-TO-KAKOU, Vol.58 No.673 (February 25, 2017), [151-155], DOI: https://doi.org/10.9773/sosei.58.151 
  38. Masami Kojima, Pusit Mitsomwang, Shigeru Nagasawa. Effect of cutter tip angle on cutting characteristics of acrylic worksheet subjected to punch/die shearing. AIMS Materials Science,  Vol.3 No.4 (2016, December 5th), [1728-1747]. DOI: http://dx.doi.org/10.3934/matersci.2016.4.1728
  39. Pusit Mitsomwang, Pirapa Natpukkana, Rattana Borrisutthekul, Shigeru Nagasawa, Effects of Blade Tip Geometry on Cutting Characteristics of Lead Alloy Sheet Subjected to Wedge Indentation, Key Engineering Materials, Vol.719 (2016, November 10th), [137-141], DOI: 10.4028/www.scientific.net/KEM.719.137.
  40. 永澤 茂, 連載講義プラスチックの成形・塑性加工(8)  板材の切断と曲げ加工, Cutting and bending of sheet materials, SOSEI-TO-KAKOU, Vol.57 No.668 (2016, 9), [867-871], DOI: https://doi.org/10.9773/sosei.57.867
  41. Shigeru NAGASAWA, Shinya OZAWA: Effect of bending velocity on time-dependent release behavior of creased white-coated paperboard, Mechanical Engineering Journal,  Vol.3 No.3, Artcile ID: 16-00182 [1-11], [Advance Publication] Released May 24, 2016 .
  42. ShigeoYANABE, Shigeru NAGASAWA: Effects of nip roller on wound roll stress distribution and friction forces (Simulation of winding process considering web wrapping around nip roller) [ニップローラがロールの応力分布や摩擦力に及ぼす影響 （ニップローラへの巻き付き角を考慮した2 次元巻き取りシミュレーション）], Transactions of the JSME (in Japanese), Vol.82, No.834 (2016), Artcle ID: 15-00624 [1-15], Advance publication (2016, January 20), DOI: click to open the J-Stage web.
  43. S.Nagasawa, Y.Fukuzawa, M.Murayama, S.Suzuki: Mechanics and Technology of Form Cutting for for Paperboard-like Materials Processing  (板紙類の押抜き加工), 太陽書房, (2016.1), ISBN 978-4-86420-155-1.
  44. Pusit Mitsomwang, Shigeru Nagasawa, Effects of shearing parameters on cutting characteristics of polycarbonate sheet subjected to straight punch/die shearing, Journal of Materials Processing Tecnology, (Advanced publication: January 17, 2015), PROTEC14248.
  45. Shigeru NAGASAWA, Shinya OZAWA, Yasushi FUKUZAWA  Effects of folding numbers, scoring depth and bending velocity on bending-moment relaxation of creased paperboard, Mechanical Engineering Journal, Vol.2  No.1 , (February 15, 2015), Article ID: 14-00346, [1-9],  [Advance Publication] Released December 25, 2014 .
  46. 矢鍋重夫，永澤 茂，Pusit MITSOMWANG, 巻き取り過程に おけるウェブの横ずれとロール側面形状のシミュレーション(層ずれ，湾弧，テレスコープの発生過程), Lateral shift of web and edge shape of roll in winding process simulated by FEM (Development of web lateral shift, roll curved edge, and telescoping), Transactions of the JSME (in Japanese), Vol.80, No.819 (2014, November 25), Article ID: 14-00430, [1-15].
  47. Pusit Mitsomwang, Shigeru Nagasawa, Effect of mechanical conditions on cutting characteristics of polycarbonate sheet subjected to straight punch/die shearing, Procedia Engineering, Vol.81 (2014, October, 10th), [1145–1150], PROENG14461.   
  48. Pusit Mitsomwang, Shigeru Nagasawa, Effect of Overlapped Clearance on Out-of-plane Cutting Characteristics of White-Coated Paperboard Subjected to Straight Punch/Die Shearing,
    Transactions on GIGAKU, Vol.2 No.1, (2014, October 22), Article ID: 02003, [1-8].
  49. Pusit Mitsomwang, Shigeru Nagasawa, Hiroki Kuroiwa and Yoshio Fukushima, Deformation Analysis of Silicone Rubber Sheet Subjected to Keen WC Blade Indentation, International Journal of Automation Technology, Vol.8 No.5, September 5th, (2014), Fuji Technology Press, [761-772].
  50. P.Mitsomwang and S.Nagasawa, Cutting characteristics of white-coated paperboard subjected to straight punch/die shearing under overlapped clearance, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.8 No.5, Article ID: 13-00333, [1-11], (August 4th, 2014), DOI
  51. 最新材料の性能・評価技術委員会編, 最新材料の性能・評 価技 術 (プラスチック系材料および製品事例), 第3章第4節せん断試験, [174-179],  産業技術サービスセンター(SGSC), 東京 (2014.5).
  52. S. Nagasawa, Y.Shiga, and Y.Fukuzawa, Effects of scoring depth, tracking angle, rubbering on bending-moment relaxation of creased paperboard, Advanced Materials Research (Advances in Materials and Processing Technologies XVI), Vol.939  (2014,April), Trans Tech Publications, Switzerland, [53-59].
  53. S. Nagasawa, P. Mitsomwang, S. Chaijit, W. Wongpatsa, Finite Element Analysis of Two Dimensional Deformation of Double-wall Corrugated Board on Creasing Process, Proceedings of 3rd International Symposium on Engineering, Energy and Environment (ISEEE2013), (November 17-20, 2013), Bangkok, Thailand, [338-343]. ISBN 978-974-466-715-1.
  54. P. Mitsomwang and S. Nagasawa, Cutting Behavior of Acrylic Thick Sheet Subjected to Squared Punch Shearing, Journal of Chemistry and Chemical Engineering, Vol.7 No.7 (2013, July 25), [653-665].
  55. S. Nagasawa, K. Ishibashi, Y. Fukuzawa, Effect of Pre-Creasing Roller Shape on Creasing Characteristics of Double-wall Corrugated Board, Proceeding Book of International Conference on Materials Processing Technology, (June 27-28, 2013), Bangkok, [171-176], ISBN 978-974-456-743-7.
  56. H. Kishi, A. Matudoe, K. Yamashita, S. Nagasawa and Y. Fukuzawa, Analysis of AE Signals during Scratch Test on the Coated Paperboard, Journal of Acoustic Emission, Vol.30, (2012), [1-10].
  57. S.Nagasawa, Y.Komiyama and Y.Fukuzawa, Effect of excited duration on cutting characteristics of polycarbonate sheet subjected to center-bevelled blade indentation excited by ultrasonic wave, Procedia CIRP, Vol.6 (2013.March 26) [546-551].
  58. S.Nagasawa,Y.Komiyama and P.Mitsomwang, Finite Element Analysis of Corrugated Board on Rotary Creasing Process, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.7 No.2 (2013, March 1) [103-114].
  59. S.Nagasawa and Y.Komiyama, Effect ofScoring Condition on Creasing Characteristics of Double-Wall Corrugated Board, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.6 No.7 (2012, December 7) [1263-1272].
  60. S.Nagasawa, Review: Research Introduction on Form Cutting of Resin Sheet (Cutting Charactristics of laminated Structure and Contact Stability for Wedging), SOSEI-TO-KAKOU, Vol.53 No.622 (2012, Nov.) [968-972].
  61. P.Mitsomwang, S.Nagasawa, S.Chaijit, M.Fujikura & Y.Mutoh: Effect ofUnderlay Stiffness on Cutting Profile of Polycarbonate Sheet during Wedge Indentation Process, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.6 No.7, (2012. October), [1168-1179].
  62. S.Nagasawa, Development of microscope observation system for cutting deformation of laminated-transparent resin sheet, NACHI Technical Report, Vol.24, A1 (2012), Nachi-Fujikoshi Corp., [1-7].
  63. Yasushi Fukuzawa, Shigeru Nagasawa, Analysis of Acoustic Emission on White-Coated Paperboard During a Wedge Cutting Process, in: Acoustic Emission, (2012, March), Wojciech Sikorski (Ed.), ISBN: 978-953-51-0056-0, InTech, [251-266].
  64. S. Chaijit, S. Nagasawa, Effect of Underlay Rigidity on Breaking Behavior of Aluminum Sheet during Wedged Shearing Process, Applied Mechanics and Materials, Vols.117-119 (2012), Trans Tech Publications, Switzerland, [1693-1700].
  65. S. Nagasawa, Y. Masaki, Y. Fukuzawa, Y. Mutoh, Bending Effect on Cutting Characteristics of Polycarbonate Thick Sheet Subjected to Indentation of Heightwise-Asymmetric Wedge Blades, Advanced Materials Research (Materials and Manufacturing Technologies XIV), Vol. 445 (2012), Trans Tech Publications, Switzerland, [68-72].
  66. S. Nagasawa, M. Fujikura and Y. Fukuzawa, Finite Element Analysis of Cutting Deformation of Stacked Polycarbonate Sheets Subjected to Two-Line Wedge Indentation,  Journal of Solid Mechanics and Materials Engineering, Vol.5 No.12 (2011, December) [721-731].
  67. S. Nagasawa, M. Nasuruddin, Y. Shiga, Bending Moment Characteristics on Repeated Folding Motion of Coated Paperboard Scored by Round-Edge Knife, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.5 No.4, (2011, December) [385-394].
  68. Y.Ogata, S.Nagasawa, Y.Fukuzawa, K.Yamashita and K.Sawatari, Generation Behavior of Threadlike Paper Dust in Shearing of Heightwise Corrugated Medium, SOSEI-TO-KAKOU, Vol.52 No.610 (2011, Nov.) [1213-1217].
  69. S.Nagasawa, K.Sato, M.Murayama, Y.Fukuzawa, Effect of Tool Condition on Bending Characteristics of Polyethylene Terephthalate Board Subjected to Two-line Wedge Indentation, Proceedings of International Conference on Technology of Plasticity 2011 (ICTP2011), Aachen, Germany, [984-989], (2011, 9), ISBN: 978-3-514-00784-0.
  70. S. Nagasawa, M. Fujikura, Y. Fukuzawa, T. Kajizuka, Deformation behavior of corrugated medium during wedge indentation into heightwise-corrugated paperboard, Journal of Packaging Science and Technology JAPAN, Vo.20 No.4, (2011, August) [283-292].  http://www.spstj.jp/publication/thesis/vol20/Vol20No4-2.pdf
  71. S.Nagasawa, Review: Research Activity of Paperlikeboard Diecutting Technology at Nagaoka University of Technology -- Recent Results and Prospects, Journal of Packaging Science and Technology JAPAN, Vol.20 No.4, (2011, August) [263-272]..
  72. S.Nagaswa, T. Takamatsu, Y. Fukuzawa, and Y. Tozuka, Creasing Characteristics of A-Flute Corrugated Fiber Board Using a Rotary Creaser with Respect to Breaking Strength, in: AIP Conference Proceedings, Vol. 1315 (Issue 1), [1017-1022], (2011, 1), ISBN: 978-0-7354-0871-5
  73. S.Nagasawa, Y. Masaki, M. Fujikura, N. Lukkanasirikul, and Y. Fukuzawa, ANALYSIS OF CUTTING CHARACTERISTIC OF POLYCARBONATE SHEET SUBJECTED TO WEDGE INDENTATION BY KNIFE EDGE AND GROOVED PLATE, Machining Science and Technology, Vol.15 (Issue 1), (2011, January) [110-131].
  74. S. NAGASAWA, T. TAKAHASHI and Y. FUKUZAWA, EFFECT OF TOOL CONDITION ON WEDGING CHARACTERISTICS OF STACKED POLYCARBONATE SHEETS, JP Journal of Solids and Structures, Vol.4 No.2 (2010.July), [65-84].
  75. S.Nagasawa, T.Takahashi, Y.Fukuzawa, Effect of blade tip height on cutting characteristics of polycarbonate sheet subjected to two-line wedge indentation, SOSEI-TO-KAKOU, Vol.51 No.594, (2010,July), [695-699].
  76. S. NAGASAWA, T. TAKAHASHI and M. FUJIKURA: Contact Stability on Cutting Characteristics of Polycarbonate Sheets Subjected to Two-Line Wedge Indentation, Journal of Solid Mechanics and Materials Engineering, Vol.4 No.5, [578-589], (2010, 5).
  77. S.Nagasawa, Y.Yamashita, D.Abdul Hamid, Y.Fukuzawa and A.Hine, OUT-OF-PLANE SHEARING CHARACTERISTICS OF COATED PAPERBOARD, International Journal of Mechanical Sciences, Vol.52, Issue 9, [1101-1106], (2010.9)
  78. Shigeru NAGASAWA, M. KARASAWA and Y. FUKUZAWA: Cutting characteristics of piled-up cardboards subjected to a wedge indentation,  SOSEI-TO-KAKOU, Vol.50 No.585, (2009, October) [946-950].
  79. S. NAGASAWA, J. MURAKAMI and Y. FUKUZAWA: Effect of Blade Tip Profile on Peel Cohesion Strength of White-Coated Paperboard Wedged by Center Bevel Blade, SOSEI-TO-KAKOU, Vol.50 No.576, [34-38], (2009.1), DOI: https://doi.org/10.9773/sosei.50.34
  80. S. NAGASAWA, S.Chaijit, T. TAKAHASHI, Y. FUKUZAWA K. KIKUCHI, and A.Hine: Effect of Rubber Fixture on Cutting Characteristic of White-coated Paperboard, SOSEI-TO-KAKOU, Vol.50 No.576, (2009, January) [29-33], DOI: https://doi.org/10.9773/sosei.50.29
  81. D.Abdul Hamid, S. NAGASAWA, Y. FUKUZAWA, Kiyoshi KOJIMA, A.Hine, Pressure Balance Characteristic of a Double Structure Blade under Quasi-Statically Reciprocal Loading Condition, Journal of Solid Mechanics and Materials Engineering, Vol.2 No.10 (2008, October 31) [1253-1264].
  82. D.Abdul.HAMID, S. NAGASAWA, Y. FUKUZAWA, Y.Komiyama, A.Hine:
    AE Analysis on Blade Cutting Pressure Adjustment in Dynamic Cutting of Paperboard, Journal of Acoustic Emission, Vol.27 (2009.12), [64-76].
  83. S.Chaijit, Y. YAJIMA, K. KIKUCHI, S. NAGASAWA, Y. FUKUZAWA, and A.Hine : Deformation Characteristics on Surface Layer of White-Coated Paperboard by Center Bevel Blade Subjected to Pushing Load, Materials Science Forum, 594 (2008-11), Trans Tech Publications, Switzerland [39-44], ISBN 978-0-87849-360-9
  84. S.Chaijit, S. NAGASAWA, Y. FUKUZAWA, M.Murayama and A.Hine: Effect of Underlay Rigidity on Cutting Characteristic of Aluminum Foil during Wedge Shearing Process, Journal of Advanced Mechanical Design, Systems and Manufacturing, 2(4) (2008-8) [800-811]. 
  85. D. Abdul Hamid, S. Nagasawa, Y. Fukuzawa, K. Kojima and A.Hine : Mechanical Characteristics of Center Bevelled Double Structure Blade, JIM Materials Transactions, 49(5), (2008-4) [1199-1201].
  86. S. Nagasawa,Ryo Endo,Y. Fukuzawa,Shigenori Uchino,Isamu Katayama : CREASING CHARACTERISTIC OF ALUMINUM FOIL COATED PAPERBOARD, Journal of Materials Processing Tech., 201(1-3),(2008-4) [401-407],
  87. S. Nagasawa, Darulihsan Abdul Hamid, Kazuya Kikuchi, Y. Fukuzawa and Isamu Katayama: Tensile Characteristics of Connecting Portions of Paperboard Subjected to Indentation of Nicked Center Bevel Blade, SOSEI-TO-KAKOU, Vol.49 No.564, [66-70], (2008.1), DOI: https://doi.org/10.9773/sosei.49.66
  88. S. Nagasawa, T. Taga, Y. Fukuzawa, M. Murayama, and I. Katayama, Effect of Cutting Line End of Paperboard on Pushing-Load Characteristic of Center Bevel Blade, SOSEI-TO-KAKOU, Vol.48 No.560, (2007.9), [829-833], DOI: https://doi.org/10.9773/sosei.48.829
  89. S. Nagasawa, K. Kikuchi, T. Taga, M.Murayama, Y. Fukuzawa and I. Katayama: Cutting Characteristic on Surface Layer of Paperboard by Center Bevel Blade, SOSEI-TO-KAKOU, Vol.48 No.558, (2007.7), [650-654], DOI: https://doi.org/10.9773/sosei.48.650
  90. S.Chaijit, S. NAGASAWA, Y. FUKUZAWA, M.Murayama and I.KATAYAMA: Effect of Hardness Combination on Contact Deformation of Center Bevel Blade with Counter Plate Subjected to a Pushing Load, Journal of Solid Mechanics and Materials Engineering, Vol.1 No.7, (2007.7), [907-911].
  91. Chaijit,S., Nagasawa,S., Fukuzawa,Y., Murayama,M., Katayama,I. : Effect of Tip Profile on Cutting Processability of Trapezoidal Cutting Blade Indented to Aluminum Sheet, J.Mechanics of Materials and Structures, Vol.1, No.8, (2006), [1301-1321].
  92. S. Nagasawa, Satoshi Nagae, Y. Fukuzawa, S.Chaijit, K. Yamashita, M.Murayama and I. Katayama: Effect of surface hardness of counter plate on crushing of blade tip during pushing shear of paperboard, Journal of Materials Processing Technology, 192-193, [265-275] (2007).
  93. Nagasawa,S., Yamagata,D., Fukuzawa,Y., Murayama,M. : Stress Analysis of wedged rupture on surface layer of coated paperboard, Journal of Materials Processing Technology, 178,No.1-3 (2006.9), [358-368].  
  94. S. Nagasawa,  A.Sudo, Y. Fukuzawa, S. Suzuki, T. Sugita, I. Katayama: Dynamic Characteristics of Blade Cutting Force during Pushing Shear on Paperboard , SOSEI-TO-KAKOU, Vol.47 No.543 (2006.4), [309-313], DOI: https://doi.org/10.9773/sosei.47.309
  95. S.Suzuki, Y.Fukuzawa,S.Nagasawa,I.Katayama, H. Iijima: Acoustic Emission Characteristics on Variation of Cutting Tip Thickness during Cutter Indentation on Paperboard, SOSEI-TO-KAKOU, Vol.46 No.538 (2005.11), [1061-1065], DOI: https://doi.org/10.9773/sosei.46.1061
  96. S. Nagasawa, Satoshi Hosoya, Satoshi Nagae, Y. Fukuzawa, Isamu Katayama: Profile Effect of Round-Edge Cutter on Shear Characteristic of Paperboard Cutter Indentation, SOEI-TO-KAKOU, Vol.46 No.538 (2005.11), [1071-1075], DOI: https://doi.org/10.9773/sosei.46.1071
  97. Nagasawa S., Fukuzawa Y., Suzuki S., Katayama I. and Sadamoto A., Acoustical Estimation of Die Cutting Process, Proceedings of 2005 International Conference on Advanced Manufacture, SME(society of manufacture engineering) Taipei Chapter, [1085-1091], (Nov.28-Dec02, 2005), Taipei, ROC.
  98. S. NAGASAWA, S.Chaijit, M.Murayama, Y. FUKUZAWA and Isamu KATAYAMA: Effect of Cutting Tip Thickness and Friction Coefficient on Load Characteristic of Trapezoidal Edge Indentation to Aluminum Sheet, in: CD-ROM of MP2005 (2nd JSME/ASME Int. Conf. on Materials and Processing), (June 19-22, 2005), Seattle, USA.
  99. S. Nagasawa, H.Sekikawa, M.Murayama, Satoshi Hosoya, Y. Fukuzawa, Isamu Katayama: Buckling Analysis of Center Bevel Cutter During Pushing Shear on Paperboard Die Cutting , SOSEI-TO-KAKOU, Vol.46 No.533 (2005.6), [515-519].
  100. S.Suzuki, M.Murayama, S. Nagasawa, Y. Fukuzawa, I.Katayama: Estimation of Mechanical Properties of White-Coated Paperboard by Scratch Test and Push Shear Test , SOSEI-TO-KAKOU, Vol.46 No.530 (2005.3), [230-234].
  101. Murayama,M., Nagasawa,S.,Fukuzawa,Y.and Katayama,I.: Orthotropy Effect and Strain Dependency of Paperboard on Load Characteristic of Center Bevel Cutter Indented to Paperboard, Journal of Materials Processing Technology, Vol.159/Issue 2 , [199-205], (30 January 2005).
  102. S.Nagae, S.Nagasawa, Y.Fukuzawa, A.Hine, I.Katayama: Effects of Quenching Hardness on Cutting Resistance and Crushing of Blade Tip Indented on Paperboard , SOSEI-TO-KAKOU, Vol.45 No.524 (2004.9), [738-742], DOI: https://doi.org/10.9773/sosei.45.738
  103. S.Nagasawa, H.Sekikawa, M.Murayama, Y. Fukuzawa, I.Katayama: Effect of Initial Tip Profile on Crushing of Center Bevelled Cutter (Numerical Analysis of Crushing of Cutter Tip Indented on Paperboard) , SOSEI-TO-KAKOU, Vol.45 No.524 (2004.9), [743-747], DOI: https://dox.org/10.9773/sosei.45.743
  104. S.Nagasawa, M.Murayama, Y.Fukuzawa, A.Sadamoto: Mechanics of Die Cutting for Paperboard Materials Processing  -Introduction to Fundamental Mechanics-, Kameda Book Service, (2004.7), ISBN 4-906364-42-X.
  105. S.Nagasawa, A.Sudo, Y.Fukuzawa, I.Katayama and Y.Fukushima:  Effect of Tip Shape of Creasing Rule on Creasing Deformation Characteristics of Paperboard, SOSEI-TO-KAKOU, Vol.45 No.518 (2004, March), [178-182].
  106. M.Murayama, S.Nagasawa, Y.Fukuzawa, I.Katayama: Effect of sheet thickness and  friction on load characteristic of crushed center bevel cutter indented to aluminum sheet, Computational Methods in Contact Mechanics VI, [115-124], WIT Press, (2003.3), ISBN 1-85312-963-1.
  107. M.Murayama, S.Nagasawa, Y.Fukuzawa and I.Katayama: Effect of Tip Thickness of Center Bevel Cutter on Load Characteristic of Cutter Indentation to Aluminum Sheet, SOSEI-TO-KAKOU, Vol.44 No.507 (2003.4),  [437-441].
  108. S.Nagasawa, Y.Fukuzawa, T.Yamaguchi, S.Tsukatani, I.Katayama: Effect of crease  depth and crease deviation on folding deformation characteristics of coated paperboard, Journal of Materials Processing Technology,  Vol.140 Issues 1-3, (2003.9), [157-162].
  109. S.Nagasawa, Y.Fukuzawa, T.Yamaguchi, M.Murayama, D.Yamaguchi  and I.Katayama: Effects of Blade Tip Shape on Thread Dross Occurrence in  Paperboard Die Cutting, SOSEI-TO-KAKOU, Vol.43 No.498   (2002.7), [624-628].
  110. A.Sadamoto, T.Yamaguchi, S.Nagasawa, Y.Fukuzawa, D.Yamaguchi and I. Katayama.: Analysis of sound radiated by paperboard die cutting, Audio Engineering Society Proceedings of 21st International Conference, [136-139] (2002.6),  ISBN 0-937803-47-2.
  111. A.Sadamoto, T.Yamaguchi, S.Nagasawa, Y.Fukuzawa, D.Yamaguchi and I. Katayama: Sensing for Machining using Pressure Level of Sound Radiated      by Paperboard Die Cutting, Journal of the Japan Society for Precision Engineering, Vol.68 No.12 (2002.12), [1554-1558].
  112. Shigekazu Suzuki, Yasushi Fukuzawa, Shigeru Nagasawa, Hideaki Sakayori, Isamu Katayama:  Characterization of Paperboard Deformation by AE, Progress in  Acoustic Emission XI, the Japan Society for Non-Destructive Inspection, [37-44]. (2002.11), ISBN 4-931018-04-1.
  113. Shigeru Nagasawa, Hitoshi Sato, Daishiro Yamaguchi., Yasushi Fukuzawa, Isamu Katayama and Akinori Yoshizawa: Effects of Tip Clearance and Blade Hardness on Cutting   Resistance and Tip Shape in Paperboard Die Cutting, SOSEI-TO-KAKOU,  Vol.42 No.480 (2001,Jan), [38-42].
  114. Shigeru Nagasawa, Yasushi Fukuzawa, Daishiro Yamaguchi., Satoshi Nagae,  Isamu Katayama and  Akinori Yoshizawa: Deformation Characteristics on Creasing of Paperboard under Shallow Indentation, Advances in Fracture Research:  Proceedings of the 10th International Congress of Fracture (ICF10),  PID: 0202-1-5, Honolulu (2001.Dec), Elsevier Science. ISBN 0080440428.
  115. Shigeru Nagasawa, Yasushi Fukuzawa, Akira Hine., Isamu Katayama, Akinori Yoshizawa  and Takeo Furumi: Effects of Edge Clearance and Board Thickness on Shearing  Characteristic of Paperboard Die Cutting, SOSEI-TO-KAKOU, Vol.41 No.469 (2000,Feb), [126-130].

Mechanical Characterization of Lightweight Ceramics Abrator(LCA)

  1. Shigeru Nagasawa, Kelly. E. Parmenter, Karl Shuman, and Frederic Milstein, Experimental Failure Modes and FEA of Lightweight Ceramic Ablators under Iosipescu Testing, Advances in Fracture Research:  Proceedings of the 10th International Congress of Fracture (ICF10), ICF100576OR PID:  0576-1-6, Honolulu (2001.Dec), Elsevier Science. ISBN 0080440428.
  2. Shigeru Nagasawa, Kelly E. Parmenter, Karl Shuman, Frederic Milstein as NASA Ames Support Team for Mars Exploration Rover Entry Descent and Landing: NASA Group Achievement Award, the fifteenth of May, 2003.