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Influence of run out of a shank for micro endmill cutting
Yukio Maeda, Kenichi Iwatsuka, Takanori Yazawa, Shinya Suzuki
Session ID: H02
Published: 2011
Released on J-STAGE: March 05, 2012
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Takenori OONO
Session ID: H03
Published: 2011
Released on J-STAGE: March 05, 2012
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Effects of a cutting edge shape on a cutting thickness are discussed. Calculation method of the changing of cutting thickness with cutting edge shape are developed to observe effects of a cutting edge shape on the milling process. The calculation is performed with various models of the cutting edge shape which is the simple sine curve and changes their amplitude to determine the actual cutting area and cutting thickness. The calculations show that the actual cutting area on the cutting edge are decreased with increasing of the amplitude of sine curve edge.
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Tsuyoshi Fujita, Hiroyasu Iwabe
Session ID: H04
Published: 2011
Released on J-STAGE: March 05, 2012
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Takashi Matsumura, Tomoaki Yoshino, Takafumi Komatsu
Session ID: H06
Published: 2011
Released on J-STAGE: March 05, 2012
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The paper discusses the cutting process of ultra fine grain steels in milling. The cutting force and the surface finish of the ultra fine grain steels are compared with those of the normal grain steels. The dynamic component of the cutting force reduces with the grain size and the stable cutting process is realized. The surface finish is also improved with reducing burr formation.
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Masato Okada, Akira Hosokawa, Yusuke Fujita, Naoki Asakawa
Session ID: H07
Published: 2011
Released on J-STAGE: March 05, 2012
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Chihiro Suzuki, Kazuo Kasahara, Akihiko Hirota
Session ID: H08
Published: 2011
Released on J-STAGE: March 05, 2012
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This study deals with an analysis of workpiece behavior for milling of a shaft having a small flexural rigidity using ball end mills. In this paper, in order to apply a previously developed cutting model to milling of shafts, geometric quantities such as contact region between the cutting edge and the workpiece surface, and distribution of undeformed chip thickness along the cutting edge are analyzed. Cutting forces are calculated by using the cutting model and an energy method. Then, the workpiece deflection is analyzed based on calculated results of cutting forces, and the variation of the above quantities with tool rotational angle are compared at various tool locations on the workpiece. It is found that the cutting forces and workpiece deflection became large at the location where the tool axis reaches about half of the center line of the shaft.
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Effect of Radial Depth of Cut on Chatter Stability
Takuya Kojima, Norikazu Suzuki, Eiji Shamoto
Session ID: H09
Published: 2011
Released on J-STAGE: March 05, 2012
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Kentaro Nishio, Ryuta Sato, Keiichi Sirase
Session ID: H13
Published: 2011
Released on J-STAGE: March 05, 2012
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Keiichi Kikuta, Takatoshi Nishikawa, Takahiro Tutumoto, Hiroyuki Yamas ...
Session ID: H14
Published: 2011
Released on J-STAGE: March 05, 2012
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Hiroaki Fukasawa, Hiroyuki Kodama, Toshiki Hirogaki, Eiichi Aoyama, Ke ...
Session ID: H15
Published: 2011
Released on J-STAGE: March 05, 2012
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Tung/Nghia Nguyen, Keiichi Nakamoto, Tooru Ishida, Yoshimi Takeuchi
Session ID: H17
Published: 2011
Released on J-STAGE: March 05, 2012
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Junichi Kaneko, Kentaro Mori, Kenichiro Horio
Session ID: H18
Published: 2011
Released on J-STAGE: March 05, 2012
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Coping with spindle-tilting type
Tomoyuki Kanda, Koichi Morishige
Session ID: H19
Published: 2011
Released on J-STAGE: March 05, 2012
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Robot and End Effector Modeling and Motion Simulation
Takahiro Terashima, Fumiki Tanaka, Masahiko Onosato
Session ID: H20
Published: 2011
Released on J-STAGE: March 05, 2012
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Relationship between Heating Area and Formability
Mami Jono, Keigo Takasugi, Hidetake Tanaka, Naoki Asakawa
Session ID: H22
Published: 2011
Released on J-STAGE: March 05, 2012
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Path Generation for Incremental Hammering Using an Industrial Robot
Keigo Takasugi, Hidetake Tanaka, Mami Jono, Naoki Asakawa
Session ID: H23
Published: 2011
Released on J-STAGE: March 05, 2012
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Generation of tool path on the basis of image data
Yoshimasa Kuriyama, Takuhiro Noguchi, Naoki Asakawa
Session ID: H24
Published: 2011
Released on J-STAGE: March 05, 2012
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Generation of the Path for Thickness Measurement Considering Collision
Yurie Okugawa, Naoki Asakawa, Masato Okada
Session ID: H25
Published: 2011
Released on J-STAGE: March 05, 2012
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Takaaki Nagai, Akihito Matsumuro, Makoto Takagi
Session ID: H31
Published: 2011
Released on J-STAGE: March 05, 2012
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Tatsuya Goto, Arata Kaneko, Yasuhiro Tanaka
Session ID: H32
Published: 2011
Released on J-STAGE: March 05, 2012
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Daisuke Sasaki, Hiroyuki Noguchi
Session ID: H33
Published: 2011
Released on J-STAGE: March 05, 2012
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Evaluation of Alumina Ceramic film
Hiroyuki Noguchi, Daisuke Sasaki
Session ID: H34
Published: 2011
Released on J-STAGE: March 05, 2012
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Makoto Kamijo, Hiroyuki Noguchi
Session ID: H36
Published: 2011
Released on J-STAGE: March 05, 2012
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Takashi Matsumura, Masaki Serizawa
Session ID: H37
Published: 2011
Released on J-STAGE: March 05, 2012
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Whirling cutting is presented to machine micro grooves on wires. The whirling process is shown with its advantages. Based on the mechanism, a micro whirling machine is developed for the micro grooving. Then, the alignment of whirling tool is adjusted for precision machining. Micro grooves machined on small diameter wires are shown to verify the whirling cutting.
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Takeyuki Yamamoto, Gou Kobayashi, Jun Shimizu, Hirotaka Ojima, Teppei ...
Session ID: H38
Published: 2011
Released on J-STAGE: March 05, 2012
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This study aims to develop a high-functional photocatalytic film, of which surface is regularly textured by the micro machining to earn the real surface area. In this work, a regularly textured titanium dioxide film surface was fabricated by anodic oxidizing a pure titanium plate with regularly arrayed micro cutting grooves, and its wettabilty was evaluated. Microcutting grooves were machined by a 3-axis NC control precision machine tool with a single point diamond cutter. Anodic oxidation experiments were conducted by using the self-developed equipment with diluted acetic acid as the electrolyte. As a result, it was found that the wettability of the titanium dioxide film surface regularly textured by synchronized 3-axial micro cutting was superior to those of the mirror finished or irregularly textured surfaces under the irradiation environment by the ultraviolet rays.
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Takashi Matsumura, Noriko Konuma
Session ID: H39
Published: 2011
Released on J-STAGE: March 05, 2012
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Physical properties of powder molding parts are measured to evaluate the product performance. Some power foundations in cosmetic products are compared to identify the characteristics and the similarity. The cutting resistance and critical cutting thickness for delamination are measured in micro cutting tests. Friction coefficients of powder foundations are measured in the friction tests. Water droplet tests are conduct to evaluate the water repellency on the powder foundation. The product performance are evaluated in the vector analysis.
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Daisuke Wakayama, Makoto Takagi, Akihito Matsumuro, Hiroyuki Iwata
Session ID: H43
Published: 2011
Released on J-STAGE: March 05, 2012
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Examination by Mechanical and Electrical Method
Jun Shimizu, Kouichirou Takano, Hirotaka Ojima, Teppei Onuki, Takeyuki ...
Session ID: H44
Published: 2011
Released on J-STAGE: March 05, 2012
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This study aimed to fabricate nanoscale structures on silicon substrates using nanoscratching and local anodic oxidation, which can be potentially used to make nano/micro molds for nanoimprint lithography. In this report, nanoscale concave and convex structures were fabricated by using aforementioned two methods, and those structures were etched by KOH solution in order to improve their depths/heights (or aspect ratios). As a result, the depths/heights were increased by more than ten times and the effectiveness of such hybrid fabrication methods was confirmed.
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Optimization of Fabrication Process for Diamond Probe
Kazuhiro Maruno, Keisuke Satou, Moeto Nagai, Takahiro Kawashima, Takay ...
Session ID: H45
Published: 2011
Released on J-STAGE: March 05, 2012
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Evaluation of Through-Hole Formation Process in Polymer Films
Jumpei Yoshida, Moeto Nagai, Takahiro Kawashima, Takayuki Shibata, Tos ...
Session ID: H46
Published: 2011
Released on J-STAGE: March 05, 2012
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Kengo Ichihashi, Akira Kakuta
Session ID: H61
Published: 2011
Released on J-STAGE: March 05, 2012
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Hidekazu Hara, Sun-Moo SONG, Kohichi Sugimoto
Session ID: H62
Published: 2011
Released on J-STAGE: March 05, 2012
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Akira Watanabe, Tomohiro Mizoguchi, Yoshikazu Kobayashi, Kenji Shirai
Session ID: H63
Published: 2011
Released on J-STAGE: March 05, 2012
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consideration of rolling friction
Kazuki Masuda, Nobuyuki Moronuki
Session ID: H64
Published: 2011
Released on J-STAGE: March 05, 2012
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Microstructure on a floor can change the frictional property to prevent slip accident under wet environment because the structure release the water between mating surface and decrease the hydrodynamic pressure. However, the effect of rolling friction has not been made clear. This study aims to discuss the structural design of floor with rolling friction. Floor samples that have 1 mm structural height were prepared and the friction against rubber plate was measured while applying mm-size rolling element between them. It was found that the ratio of the diameter of rolling element to the structural height should be designed with care to increase friction. The reason is considered as the rolling motion of the element is interrupted by the structure on the floor surface.
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Kensaku Yoshino, Arata Kaneko, Yasuhiro Tanaka
Session ID: H66
Published: 2011
Released on J-STAGE: March 05, 2012
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Iwori Takeda, Arata Kaneko, Yasuhiro Tanaka
Session ID: H67
Published: 2011
Released on J-STAGE: March 05, 2012
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Liu Sichen, Yasuko Yanagida, Takeshi Hatsuzawa
Session ID: H68
Published: 2011
Released on J-STAGE: March 05, 2012
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Yasunori Imai, Tatsuro Endo, Shota Kita, Yasuko Yanagida, Toshihiko Ba ...
Session ID: H69
Published: 2011
Released on J-STAGE: March 05, 2012
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Fluid Friction Reduction by Three Dimensionally Patterned Surface on Magnetically Driven Microrobot
Masaya Hagiwara, Tomohiro Kawahara, Toru Iijima, Taisuke Masuda, Yoko ...
Session ID: H73
Published: 2011
Released on J-STAGE: March 05, 2012
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This paper presents the ultrahigh speed microrobot actuation for on-chip cell manipulations. The comprehensive analysis of fluid force, the optimum design and its fabrication was conducted to reduce the fluid force on the magnetically driven microrobot by attaching riblet shape on the microrobot. When the riblet shape is patterned on the moving objects, the upward fluid pressure is employed on the surface and it reduces fluid friction force. We analyzed this phenomenon based on Reynolds equations and derived optimum riblet surface to minimize the fluid friction force on the microrobot. The Ni and Si composite fabrication was employed to form the optimum riblet shape on the Ni based microrobot by anisotropic Si wet etching and deep reactive ion etching. The evaluation experiments show the effectiveness of the riblet surface for the positioning accuracy, especially in the case of high speed actuation. The positioning accuracy of the microrobot with riblet improved more than 8 times than without riblet. In addition, since the microrobot was covered by Si, which is bio-compatible, it can be applied to cell manipulation without harm. We achieved high speed cell spheroids assembly to produce cell sheet in a microfluidic chip by dual-arm microrobot.
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Specific Adsorption by Antigen-Antibody Reaction
Eita Watanabe, Shinya Ariyasu, Kengo Hanaya, Toshihiro Suzuki, Akikazu ...
Session ID: H74
Published: 2011
Released on J-STAGE: March 05, 2012
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Demonstration of Tumor Cell Enrichment
Keiki Suyama, Shinya Ariyasu, Kengo Hanaya, Toshihiro Suzuki, Akikazu ...
Session ID: H75
Published: 2011
Released on J-STAGE: March 05, 2012
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Takuya Ando, Takasi Nisisako, Takeshi Hatsuzawa
Session ID: H76
Published: 2011
Released on J-STAGE: March 05, 2012
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Yusuke Fukuta, Terutake Hayashi, Masaki Michihata, Yasuhiro Takaya
Session ID: H78
Published: 2011
Released on J-STAGE: March 05, 2012
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When a laser pulse interacts with metal or semiconducting target, the lattice oscillation, which has phase coherence and nonlinear electron heating, is excited on their surfaces. It is called coherent phonon and has unique properties of decaying in approximately several picoseconds and substance specific frequency. Owing to that, femtosecond laser processing is the local processing with little heat diffusion and little thermal damage to the target due to the ultrafast time scales. We propose a novel femto pulse nano ablation process with oscillation of the coherent phonon. So we use femto pulse train. The pulse train, which is excited by femtosecond pulse, is shaped by using spatial light modulator to control the phase of the passing light. And coherent phonon oscillations are enhanced and decayed due to the controlling the shape of pulse train. It enables to accelerate or decelerate the lattice motion efficiently. Here, we report femto pulse shaping and its time resolving detection system to challenge that method.
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Naoto Saito, Yuko Aono, Hitoshi Tokura
Session ID: H79
Published: 2011
Released on J-STAGE: March 05, 2012
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Masaki Otani, Junichi Uchikoshi, Kentaro Tsukamoto, Takabumi Nagai, Ke ...
Session ID: H80
Published: 2011
Released on J-STAGE: March 05, 2012
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Yuki Murao, Reo Kometani, Shinichi Warisawa, Sunao Ishihara
Session ID: H81
Published: 2011
Released on J-STAGE: March 05, 2012
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Keiichi Shirase
Session ID: I01
Published: 2011
Released on J-STAGE: March 05, 2012
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According to the evolution of machine tools to achieve high speed, multi-axis and multi-task machining operations, several functions are newly required for a next generation CAM to manage a high-performance machine tool. Especially, reliable functions, not only to support NC programming, but also to guarantee safety NC machining and machining accuracy are required. In this report, technical issues to be solved, which were discussed in the research committee of Japan Machine Tool Builders′ Association, are introduced.
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Toshiki Yoneoka, Yasuhiro Kakinuma, Kohei Ohnishi, Tojiro Aoyama
Session ID: I03
Published: 2011
Released on J-STAGE: March 05, 2012
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Recently, many researches regarding the detection and suppression of chatter vibration have been studied. Most of them use additional sensors such as acceleration sensors and force sensors. As a result, using these sensors leads to high manufacturing cost and low rigidity of the mechanical structures. The chatter vibrations can be classified into self-excited vibrations and forced vibrations due to their generation mechanism. However, many studies have been focused on only one type of them. To deal with these vibrations respectively, the type of the chatter vibrations need to be identified. In this research, the sensor-less detection system utilizing disturbance observer and the modal identification system of chatter are proposed. The proposed method is applied to the end-milling process to verify its validity.
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Compensation of table motion by measurement of table response
Katsuhiro Nakagaki, Yoshitaka Morimoto, Naohiko Suzuki, Yoshiyuki Kane ...
Session ID: I04
Published: 2011
Released on J-STAGE: March 05, 2012
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Yoshitaka Morimoto, Souichirou Emoto, Takayuki Moriyama, Yoshiyuki Kan ...
Session ID: I05
Published: 2011
Released on J-STAGE: March 05, 2012
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