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Motoyuki Ozaki, Toshimitsu Higashi, Tatsunori Hara, Jun Ota
Session ID: F20
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Akira Takagi, Eiji Morinaga, Hidefumi Wakamatsu, Eiji Arai
Session ID: F21
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Toshiya Kaihara, Nobutada Fujii, Tensuke Okuno, Masashi Morikawa
Session ID: F22
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Yasuto Iseki, Katsumi Fujisaki, Kazunari Tsutsui, Masami Kogiso
Session ID: F31
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Life Cycle Design Support Method for Increasing Recyclability of a Product
Yuki Matsuyama, Takahiro Mizuno, Shinichi Fukushige, Yasushi Umeda
Session ID: F33
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Naoya Miyaji, Shinichi Fukushige, Yasushi Umeda
Session ID: F34
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Kota Nakamura, Shozo Takata
Session ID: F36
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Ryosuke Ito, Nobuo Nakamura, Shinichi Fukushige, Yasushi Umeda
Session ID: F37
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Tatsuo Obata, Atsuhiro Uraie
Session ID: F38
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Yasuaki Nakamura, Yusuke Kishita, Yoshinori Hisazumi, Tsukasa Hori, Sh ...
Session ID: F39
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Yasumasa Tanishiro
Session ID: F61
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Makoto Adachi, Mamoru Hirafuji, Futoshi Iwata
Session ID: F63
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Kenya Okita, Takao Kitayama, Hiroki Matsumura, Koji Usuki, Takuya Koji ...
Session ID: F64
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Takaaki Yano
Session ID: F66
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Kimihiro Ishizaki, Masato Nakajima, Tatsuo Ushiki, Futoshi Iwata
Session ID: F68
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Naoki Saito, Akito Imafuku, Hiroaki Nishikawa, Yasuhisa Sano, Kentaro ...
Session ID: F69
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Hiromitsu Sugimoto, Masaaki Nagatsu, Akihisa Ogino, Futoshi Iwata
Session ID: F73
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Kohei Okuda, Hiroki Matsumura, Takao Kitayama, Koji Usuki, Takuya Koji ...
Session ID: F74
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Effect of adsorbed water on quality of GeO2
Kenta Arima, Atsushi Mura, Iori Hideshima, Takuji Hosoi, Heiji Watanab ...
Session ID: F75
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Takashi Matsumura
Session ID: G01
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Quality Improvement of the Machined Surface by Up-cut Milling
Takumi Imada, Heisaburou Nakagawa, Keiji Ogawa, Hitomi Kojima, Haruki ...
Session ID: G02
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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This study deals with side cutting phenomena in micro-end-milling of hardened die steels using high speed air-turbine spindle. Cutting experiments were carried out with measuring cutting force, frank wear of tool and real depth of cut in one path in order to investigate on difference of cutting phenomena caused by cutting direction. Moreover, observing of machined surface, and measuring profile of cutting edge and machined surface were demonstrated. As a result, it was revealed that quality of the machined surface by up-cut milling was better than that by down-cut milling, because unstock-removal in up-cut was smaller and there was little tool abrasion in up-cut.
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Ryoji Yoshida, Kazuo Kasahara, Masafumi Ohkubo
Session ID: G03
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Development of a CNC lathe having a milling spindle has resulted in an improvement in the productivity of shafts that have a straight groove and a flat surface. However, for milling of shafts having a large length and a small diameter, workpiece deflection caused by the cutting force causes an increase in surface roughness of machined portion and chatter vibration. This study deals with an analysis of workpiece behavior and optimization of machining conditions with regards to milling of a shaft having a small flexural rigidity using ball end mills. In this paper, the workpiece deflection is analyzed based on calculated results of cutting forces obtained by using a cutting model proposed in previous papers. The predicted results are good agreement with the experimental results. Analysis of the resonance frequency of the workpiece is performed, and the relationship between the rotational speed of the spindle and displacement of the workpiece is clarified.
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Ayato Yoshihara, Kazuo Kasahara
Session ID: G04
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Geometric quantities such as undeformed chip thickness and area of cutting cross-section in milling with ball end mills having cutting edge of from one to six are compared in milling in which removal volume per unit time is constant. Cutting force in milling along the contour line of inclined surface with above ball end mills is calculated by using a cutting model and energy method proposed in previous papers. In order to clear the effect of number of cutting edge on tool behavior, the FEM models of ball end mill having cutting edge of from two to four are constituted by using geometric data of cross section of standard type end mill. In addition, deflection of cutting tool is analyzed by using cutting force data calculated and the FEM model. As the results, it is found that when number of cutting edge is four, changing of cutting force and tool deflection can be reduced considerably.
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Kentaro Ohtaka, Kazuo Kasahara
Session ID: G06
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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In milling with 5-axis machining center, the attitudes of tool or workpiece are controlled by tilting 2 axes, so the milling can be performed by outer portion of cutting edge having large cutting velocity. Cutting forces under various attitudes in pick-feed milling is predicted by using a cutting model and energy method proposed in previous papers. Displacement of the tool axis in a plane normal to the feed direction is analyzed by using the calculated result of cutting force and finite element model of the ball end mill, and machining error is calculated based on the tool deflection. The Machining error is obtained by considering relationship between cutting edge geometry and machined surface. It is shown that the machining error vary considerably with pickfeed direction of the tool and tool tilting angle.
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Koji Teramoto, Kazuhisa Yabuki, Shohei Kudo
Session ID: G07
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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The objective of this research is to model the machining error in elastomer endmilling. Because the elastomers have very low rigidity and huge elongation ability, workpiece deformation and irregular surface generation are considered as dominant factors of machining error. In this paper, in situ observation of workpiece deformations is investigated by high-speed camera. From the recorded images, workpiece deformations are calculated by using an image processing technique. Calculated workpiece deformations are compared with the machining errors. From the experimental results, workpiece deformations in up cut milling affect to the machining error. However, cutting force at surface generation is very small. These tendencies imply the effects of dynamic and viscoelastic behavior of workpiece.
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Tatsuya Wakabayashi, Yukio Maeda, Masami Masuda, Shinichiro Tokutake
Session ID: G08
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Naoaki Takahashi, Yasuhiko Matsunaga, Tomoaki Nakasuji
Session ID: G09
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Tetsuya Hirano, Yasuhiko Matsunaga, Tomoaki Nakasuji
Session ID: G13
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Effect of tool rotational speed on machining error and prediction accuracy
Takatoshi Nishikawa, Keiichi Kikuta, Takahiro Tsutsumoto, Junichi Kane ...
Session ID: G14
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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In this paper, Cutting force, tool deflection, and machining error in flexible ball end milling of inclined surface under wide rotational speed were compared with the prediction of the two presented dynamic deflection model. As a result, rotational speed had a significant influence on machining error, and the regenerative force model considering the effect of tool deflection on uncut chip thickness showed a good agreement with the experimental data on all conditions. On the other hand, the rigid force model had insufficient accuracy at low rotational speed.
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Akihiko Kondou, Tatsuaki Furumoto, Takashi Ueda, Akira Hosokawa
Session ID: G15
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Influence of Feed Direction on Cutting Mechanism
Tsuyoshi Fujita, Takayuki Kato, Hiroyasu Iwabe
Session ID: G17
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Norikazu Suzuki, Takuya Kojima, Eiji Shamoto
Session ID: G18
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Naoki Takahashi, Bin Abdullah Mohd Afiq, Jun Shinozuka
Session ID: G19
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Tatsuya Hokkyo, Hideki Aoyama, Noriaki Sano
Session ID: G20
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Rotation Balancing by Influence Wave Method
Ko Miyauchi, Takeshi Yamanaka, Takeshi Toyoshima, Tomiya Sasaki, Yasut ...
Session ID: G35
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Takuya Abe, Yoshitsugu Kamiya, Hiroaki Seki, Masatoshi Hikizu
Session ID: G36
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Kyosuke Yokotani, Yoshitsugu Kamiya, Hiroaki Seki, Masatoshi Hikizu
Session ID: G37
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Takuya Hosobata, Kouta Amano, Akio Yamamoto, Toshiro Higuchi
Session ID: G38
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Norio Yamashita, Akio Yamamoto, Toshiro Higuchi
Session ID: G39
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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This paper describes influence of slider's electrode thickness on the performance of voltage-induction-type electrostatic motors. In the previous type of electrostatic motor, in which voltages are directly applied to both stator and slider electrodes, electrode thickness does not affect the motor performance, and thus its effect has not well studied. The thickness of slider electrodes, however, considerably affects the performance of induction motors. This report evaluates the effect of the electrode thickness through calculation of the slider′s internal capacitances using FEM analysis. The results indicate that thicker slider electrode decreases the output performance of the motor.
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Yosuke Kurokawa, Yuta Ohashi, N. Premachandra H. Chinthaka, Kiyotaka K ...
Session ID: G43
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Eliminating the swash plate from a small helicopter can contribute to the weight reduction, the maintenance simplification and the cost reduction. Therefore, this paper proposes an electronically controlled swash plate mechanism using a sensorless motor for driving the main rotor. The sensorless motor is used as a sensor for acquiring the angle of the main rotor. Then, the main rotor angle is calculated from the acquired motor angle to drive the rotor blades. The paper, describes the swashplateless mechanism and the control method.
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Akiya Saita, Yuji Ishino, Masaya Takasaki, Takeshi Mizuno
Session ID: G44
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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Kana Yamamoto, Masaki Ryomoto, Tomoya Iwakoshi, Hiroshi Hosaka
Session ID: G45
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Designing of Rotation Mechanism
Tomoya Iwakoshi, Kana Yamamoto, Masaki Ryoumoto, Hiroshi Hosaka
Session ID: G46
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Masanori Wada, Hiroshi Hosaka, Ken Sasaki, Kiyoshi Itao
Session ID: G47
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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For the purpose of large reduction of the electricity consumption, a portable personal cooling system was developed, which cooled only the human body instead of a conventional air-conditioner which cooled the whole conventional room. Various methods including a cape model, a vest model were produced experimentally and were evaluated. Then, it was shown that a method to absorb heat with peltier device from a neck and to radiate heat by water cooling was most suitable. Moreover, a heat transfer model of water-cooling was built, and a design indicator for optimizing was shown.
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Dahai Mi, Wataru Natsu
Session ID: H01
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
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In this paper, the modeling and simulation of micro-pin forming process using electrochemical machining (ECM) was discussed. The boundary conditions were chosen based on the parameters of ECM experiments. COMSOL Multiphysics was used to simulate the electric potential distribution on the pin surface and in the electrolyte, and the evolution of the micro-pin shape. The anode resistance was also taken into account to simulate the micro-pin forming process. The simulation results showed the same trend with experimental results in terms of the final pin shape and the diameter changing process.
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Takuma Kawanaka, Haruo Sai, Masanori Kunieda
Session ID: H02
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Shinji Harada, Wataru Natsu
Session ID: H03
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Katsuaki Endo, Wataru Natsu
Session ID: H04
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Wenhao Zhang, Tomoo Kitamura, Tomohiro Koyano, Masanori Kunieda, Kohzo ...
Session ID: H05
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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Tomohiro Koyano, Masanori Kunieda
Session ID: H07
Published: February 27, 2013
Released on J-STAGE: August 27, 2013
CONFERENCE PROCEEDINGS
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