巻号一覧
54 巻, 10 号
選択された号の論文の31件中1～31を表示しています
- |<
- <
- 1
- >
- >|
-
辻 薦1988 年 54 巻 10 号 p. 1831-1834
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (876K) -
藤居 眞理子, 角田 光雄1988 年 54 巻 10 号 p. 1835-1839
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (893K) -
土橋 義知1988 年 54 巻 10 号 p. 1840-1844
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (6178K) -
藤田 尚, 金子 康紀, 柴田 元1988 年 54 巻 10 号 p. 1845-1848
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (2473K) -
佐藤 昭八郎1988 年 54 巻 10 号 p. 1849-1853
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (799K) -
平塚 豊1988 年 54 巻 10 号 p. 1854-1857
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (716K) -
大場 洋一1988 年 54 巻 10 号 p. 1858-1861
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (832K) -
村上 武彦1988 年 54 巻 10 号 p. 1862-1866
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (840K) -
小山 基雄1988 年 54 巻 10 号 p. 1867-1870
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (713K) -
原田 宙幸1988 年 54 巻 10 号 p. 1871-1876
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (1330K) -
松尾 誠太郎1988 年 54 巻 10 号 p. 1877-1880
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (1965K) -
保坂 純男, 細木 茂行, 高田 啓二, 原田 達男, 加藤 恵三1988 年 54 巻 10 号 p. 1885-1890
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーA prototype scanning tunneling microscope (STM) was developed to apply the STM technology for practical micro surface observation. The features of the instrument are : (1) A 3-dimensional piezo inchworm mechanism to approach and select observation area, (2) a conversion technology of tunneling current fractuation to gap fractuation and (3) an automatic approach system of electrochemically etched probe tip to tunneling effect region. Various STM images were obtained both with atomic scale and μm scale. Among them are (7 × 7) reconstructed Si (111) surface, groove shape of soft X-ray gratings and groove shape of an optical disc, which were compared with SEM and TEM images. The STM is found to be practical to evaluate an extremely fine surface structure formed with recent ultra precision technology.抄録全体を表示PDF形式でダウンロード (7352K) -
町田 和雄, 岩田 敏彰, 川田 正国, 戸田 義継, 堀 光平, 栗田 康雄, 本田 登志雄1988 年 54 巻 10 号 p. 1891-1896
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThis paper presents the study on an actuator for a 10-meter class space manipulator, which would be required for constructing large space structures and handling payloads on orbit. The durability in vacuum environment, compactness and light-weight are emphasized in designing the actuator. A mechanical paradox planetary gear mechanism is employed for the gear box, since it has several advantages for the actuator of a space manipulator essentially, such as high reduction ratio, light-weight, high rigidity and simplicity. The tribological study on the gears in vacuum environment are conducted. The combination of hardened SUS 440 C and nitriding steel with PFPE grease lubricant shows the sufficient friction and wear properties. The life test by cyclic rotational motion is carried out, and the efficiency and wear of the gear box are investigated, relating with the paradox gear mechanism. The actuator, which has the mass of 20 kg, diameter of 200 mm and durability more than 1 000 hours in vacuum environment, were developed.抄録全体を表示PDF形式でダウンロード (4903K) -
三次元測定データからの自由曲面の生成高井 憲二郎1988 年 54 巻 10 号 p. 1897-1902
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThis paper describes a free-form surface generation system for camera design. The design of cameras has some aspects that differ from that of cars or airplanes. It is necessary to use real object models like wood or clay ones not only to confirm camera shapes but also to design them. Therefore a system is necessary that can generate or modify surfaces in the computer from the real object models as well as generate NC cutter paths to make real objects. The author has developed the system that generates free-form surfaces from three dimensional measurement data. The surface is generated with the following procedure. (1) Define a boundary line to specify the region where the surface will be generated. (2) Measure the real object with the three dimensional measurement machine. (3) Generate the free-form surface to be fitted for the measurement data. The system can offset surfaces and generate NC paths for them.抄録全体を表示PDF形式でダウンロード (2778K) -
乾 正知, 鈴木 宏正, 木村 文彦, 佐田 登志夫1988 年 54 巻 10 号 p. 1903-1908
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThe importance of the process planning automation is well understood, and many CAPP systems using expert system techniques have been constructed. For this process planning automation, form features, which are technological characteristics of the shape, have the most important meanings. Most of the current CAPP systems lack the ability of manipulating this form feature, it is difficult for them to consider the effect of machining operation in process planning. To solve this problem, a form feature modeling system is developed and incorporated in our process planning system XMAPP. XMAPP represents and uses process planning methods and constraints in the form of production rules. Those rules not only refer to the form feature information, but also dynamically manipulate them as needed in the process of problem solving. By using this form feature modeling function, a blank material product model is automatically generated based on a given machine part model. A machining operation plan is also obtained by recording this modeling process properly.抄録全体を表示PDF形式でダウンロード (1096K) -
稲村 豊四郎, 寺崎 尚嗣, 安井 武司, 高木 和憲1988 年 54 巻 10 号 p. 1909-1914
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーA method to improve finite element models for thermal deformation analyses has been proposed. In this method, a model is adjusted so that the results of analysis by the model fit experimental ones. The adjustment process consists of the following steps : first, a static deformation of a structure due to a unit force is obtained, based on Maxwell-Betti's reciprocal theorem, from the measured temperature distribution of the structure and the resulting thermal displacement measured at one point of the structure ; second, the experimental result thus obtained is compared with the analytical result obtained by static analysis by using the model ; third, the discrepancy between the two results is eliminated by modifying the analysis model. A case study has been done for a finite element model of an index unit of an NC lathe to show that this method is effective not only to improve the accuracy of finite element analysis but also to find out errors included in experimental data to be used in adjustment.抄録全体を表示PDF形式でダウンロード (2695K) -
-寸法誤差のある円弧ばねの場合-吉村 靖夫, 天田 勝正, 赤坂 隆1988 年 54 巻 10 号 p. 1915-1920
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーIn the parallel spring movement, there is a unique point where regardless of loading position, rectilinear displacement remains unchanged. The point shows no deviation from the origin as long as each of two parallel springs are symmetrical regarding y axis passing through the origin. Error of thickness of the spring, however, causes appreciable error rate of displacement, resulting in the error of a mass to be measured by a balance. As for workableness, the circular spring is better than leaf spring, because high dimensional accuracy can be obtained by such a conventional tool as end milling cutter. Authors aim in the paper to clarify the effect of the error of the minimum thickness of the circular springs on the error rate of displacement by comparison of theoretical analysis with the experiments and Finite Element Method (FEM). The results may be briefed as followings : (1) The error rate of the minimum thickness of the circular spring, Δtm/tm0 contributes approximately to the error rate of displacement, independent of the position of loading and sensors. (2) The error rate of displacement is influenced by not only the loading and measuring position but also the ratio of the minimum thickness to the radius, or tm/R0.抄録全体を表示PDF形式でダウンロード (2810K) -
小鍜治 繁1988 年 54 巻 10 号 p. 1921-1926
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーA mechanical link system is designed which is composed of identical units. There is no limit to the total size of the mechanism and any size is possible so long as enough units are available. Each unit has its dedicated controller and there is no central controller which supervises the total system. Each controller has the same software and it knows neither the total system size nor its location in the system at first. The controllers can talk to their neighbour units' controllers and while talking, they gradually get information and establish a well-organized distributed control system. The system accepts external commands and realizes movement on a plane. The system composed of nine units has been realized and experiments have been carried out.抄録全体を表示PDF形式でダウンロード (4319K) -
宮地 隆太郎, 須田 稔, 原田 正躬, 根岸 健二1988 年 54 巻 10 号 p. 1927-1932
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThe externally pressurized gas journal bearing performances (load capacity, stiffness and damping) are affected by clearance pressure distribution. The pressure distribution is determined by the restrictor losses which are dependent on the type of restrictor (orifices and inherently compensated), number of restrictors, radial clearance, supply pressure and shaft rotational speed. In this paper, the pressure distribution around the restrictor is measured and influence of the above conditions on the restrictor losses is investigated. Following conclusions are obtained : (1) By the use of orifice restrictor, bearing operational clearance can be made narrower than in the case of inherently compensated restrictor. (2) The pressure distribution in the upstream and downstream of the restrictor is unsymmetrical in proportion to the shaft rotational speed, and this tendency can be ignored when the bearing clearance is smaller than 40-50 μm. (3) In case of using orifice restrictor, loss of load capacity amounts to 10-20% of the value obtained in purely viscosity calculations.抄録全体を表示PDF形式でダウンロード (841K) -
丸山 一男, 辻 裕一, 市原 浩一1988 年 54 巻 10 号 p. 1933-1938
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーIn this study, a micro-computer-aided testing machine is designed and produced by way of experiment, which can realize various fastener tightening methods in elastic or plastic region and continuously apply an external force on the fastener. It consists of a DC-servo motor, a hydraulic cylinder, a new-type load cell, a new-type extensometer and a micro-computer, and can detect following nine factors : tightening torque, thread torque, bearing surface torque, axial tension, external force, elongation of bolt, torsional angle of bolt, rotational angle of nut, time. They are processed in a micro-computer and recorded on an X-Y plotter. Fundamental test was made with the bolts and the nuts of M 10 in elastic or plastic region of bolt material, and it is confirmed that the testing machine satisfies the specifications needed.抄録全体を表示PDF形式でダウンロード (2536K) -
小島 昇1988 年 54 巻 10 号 p. 1939-1944
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThis paper shows a geometric optical measurement method newly developed for the purpose of measuring the inner radius of a transparent circular pipe. When the parallel laser beams run through a transparent circular pipe, two penetrated ones is observed comparatively clear : one of these is called the tangential mode and the other is the 1 order reflection mode. In this method the refraction of light is applied, but there is no need to use the index of refraction of the circular pipe material by using these two modes. In addition, it is possible to measure the inner radius at any axial position of a pipe. The value of inner radius for one transparent circular pipe is given with the mean value of 50 measured values. It is estimated from the experimental results that the total accuracy of this method is (mean value ± 0.001 mm). Therefore, the new measurement method is useful for measurement of the inner radius of a transparent circular pipe.抄録全体を表示PDF形式でダウンロード (789K) -
5自由度の制御松本 秀樹, 山口 城治, 青山 尚之, 下河辺 明1988 年 54 巻 10 号 p. 1945-1950
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーIn order to realize straight motion at the highest level of accuracy, the system is introduced in which five degrees of freedom of a moving table vertical and horizontal positions, and pitch, roll and yaw angles are controlled precisely. The table is supported by active air bearings composed of piezo-actuators and air pads. Motion accuracies of the table to the straight edge masters are measured by several capacitance micrometers. Control system with PID-PD controller is designed and motion-positioning resolutions of 0.02 μm and 0.02 arc sec are achieved. Straight motion accuracies were 0.05 μm in vertical and horizontal positions, 0.06 arc sec in pitch, 0.07 arc sec in roll and 0.03 arc sec in yaw angles over 1 000 mm travel at table speed of 10 mm/s.抄録全体を表示PDF形式でダウンロード (1485K) -
内田 憲男, 石橋 頼幸, 平野 亮一, 菊入 信孝, 田畑 光雄1988 年 54 巻 10 号 p. 1951-1956
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThis paper presents an X-ray lithography alignment method insensitive to mask-wafer gap variation, using dual gratings. Diffraction light beam intensities for various dual gratings were calculated on the assumption that each grating is a sinusoidal amplitude grating. As a result, if dual gratings, consisting of a linear grating on the mask and a checkerboard grating on the wafer, are used as a alignment key, it was found that the diffraction beam intensity I (0, 1), zero order in x (displacement) direction and first order in y direction, is independent from mask-wafer gap variation. The fact was confirmed by more detail calculations and experiments. Alignment experiments were carried out using intensity difference ΔI = I1 (0, 1) -I2 (0, 1) between two pairs of the dual gratings, which were arranged to have 180° phase shifted signal with reference to each other. A resolution better than 0.01 μm and 0.03 μm (3σ) alignment repeatability have been achieved among 25 μm and 55 μm gap variations.抄録全体を表示PDF形式でダウンロード (897K) -
青山 英樹, 岸浪 建史, 斎藤 勝政1988 年 54 巻 10 号 p. 1957-1962
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーIn this paper, a tactile sensing probe to detect a normal vector by using spherical thin film of resistance is newly proposed for measurement of free curved surface. The proposed probe, which is composed of spherical thin film of resistance and four electrodes, is very simple in construction and able to detect a normal vector within very low contact pressure. The method to detect a normal vector of a measuring point is clarified, and the probe is designed by a computer simulation. And then, the probe based on the proposed principle is developed, and the measurement error of the developed probe is clarified. The measurement error is under 0.7 degree. Besides, it was confirmed that form of free curved surface is able to be measured by using the developed probe.抄録全体を表示PDF形式でダウンロード (3973K) -
4波長光照明によるレジスト内干渉の低減秋山 伸幸, 山内 良彦1988 年 54 巻 10 号 p. 1963-1968
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーAlignment accuracy is one of the most important factors in step-and-repeat projection aligners used for VLSI lithography. An illumination technique is described in which the interference fringes caused by the resist thickness asymmetry on the alignment mark are reduced, thus achieving high alignment accuracy. Using this technique, the following results are obtained : (1) Using 4-wavelength simultaneous illumination where wavelengths differ by increments of 27 nm, the variation of the reflected light intensity becomes less than 27% in the range of 0.5-2.3 μm of resist thickness. (2) Ideal laser wavelengths are 458, 488, 515 and 543 nm. (3) Experimental results, determined using the illumination technique on an alignment mark coated with a resist having asymmetric thickness, give an alignment accuracy of ± 0.04 μm (3σ).抄録全体を表示PDF形式でダウンロード (4442K) -
大谷 敏昭, 藤瀬 健領, 横川 洪1988 年 54 巻 10 号 p. 1969-1974
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThe characteristics are investigated experimentally for the purpose of detecting tool wear and fracture by variations in cutting force. In this experiment, hardened steel (JIS SKD 11) is turned with a ceramic tool under finish machining condition. The main results obtained are as follows. (1) The influences of the shape of cutting edge and cutting condition on cutting force are clarified. (2) The ratio of radial force to feed force increases linearly with respect to tool flank wear width (VB). (3) When plastic deformation of cutting edge precedes fracture occurrence, the occurrence can be predicted by the increase in radial or feed force caused by the deformation.抄録全体を表示PDF形式でダウンロード (3127K) -
広域型チップブレーカの乾式切削における切削性能長谷川 嘉雄, 花崎 伸作, 藤原 順介, 和田 任弘1988 年 54 巻 10 号 p. 1975-1980
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーA new chip breaker was investigated experimentally in order to find out a more effective chip breaker than the commercial chip breaker in turning. A circular cylinder of SS 41 was turned with this chip breaker under the dry cutting. Then it was found that this chip breaker is effective for a wide set of cutting condition. Then circular cylinders of the other steels, i. e. SCM 440, S 55 C, SUS 304, SK 5 were further turned with this chip breaker in this paper. It was found that this chip breaker was almost effective to SCM 440, S 55 C, SUS 304, SK 5 under the most of the cutting condition of the depth of cut from 0.1 mm to 3.0 mm and the feed rate from 0.05 mm/rev to 0.51 mm/rev. The chip breaking performance of this chip breaker was kept up to the worn flank width of 0.2 mm. The principal and feed forces of this chip breaker were slightly greater than those of a commercial one, but the thrust force of this chip breaker was less than that of the commercial one. The surface roughness by turning with this chip breaker conforms well to the theoretical one. However, the plastic deformation of the nose corner on the insert occurred under the cutting condition of large depth of cut and high feed rate, especially for SCM 440.抄録全体を表示PDF形式でダウンロード (2910K) -
カップツルアによるツルーイング機構庄司 克雄, 朴 承鎬, 松井 正己1988 年 54 巻 10 号 p. 1981-1986
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーIn the previous papers a new truing technique with the cup-truer was proposed for the preparation of diamond wheels. This paper describes the truing mechanism of diamond vitrified grinding wheels. The main results obtained are as follows : (1) The effect of truing with a cup-truer mainly depends on the impact of silicon carbide grains torn off from the truer against diamond abrasives and bond bridges. (2) The softer a cup-truer is, the larger grains will be torn off from the truer, leading to a higher truing rate and a rougher surface texture of the diamond wheel. (3) In truing with an impregnated diamond tool, which has almost no grains to be torn off, the grains sticking out most on the grinding wheel are removed in order. (4) In the early stage of grinding process, the protruding grains of silicon carbide filled as a filler in the vitrified bond are rapidly flattened. (5) For difficult-to-grind materials it is desirable to use a diamond vitrified wheel without a filler such as silicon carbide abrasives.抄録全体を表示PDF形式でダウンロード (10233K) -
数値計算モデルと端面付近の応力分布について河村 末久, 奥山 繁樹, 山川 純次1988 年 54 巻 10 号 p. 1987-1992
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーThis paper deals with a burr-formation mechanism on a work end by using a finite element method. In the calculation, grinding temperature and cutting force for a cutting point are considered. Therefore, the thermal and mechanical stress distribution and plastic deformation of the workpiece end are derived. The main results obtained are as follows : (1) The grinding temperature causes a plastic deformation on a workpiece-surface layer, while it is not enough to produce a macroscopic plastic flow. (2) The plastic flow is produced mainly by the grinding force. (3) In the vicinity of the workpiece end, the plastic-flow layer is expanded at an angle of 21 -27° with respect to the grinding direction. The results shows a similar tendency of experimental ones.抄録全体を表示PDF形式でダウンロード (1044K) -
バイト設定角の切削面粗さへの影響前田 幸男, 桝田 正美, 西口 隆, 沢 真司, 伊藤 立1988 年 54 巻 10 号 p. 1993-1998
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーA machined surface roughness can be generally improved at a small geometrical surface roughness estimated by both a tool shape and a feed rate, even if a steady vibration exists between a tool and a workpiece. However, tool setting angles for straight tool are extremely effective upon a machined surface roughness. This paper deals with diamond turning experiments of Al-Mg alloy using straight tools with sharp cutting edges. The effect of tool setting angles on machined surface roughness was examined to study the difference between the machined surface roughness and the theoretical surface roughness estimated with a steady vibration model. Tears with 0.1 μm depth which are generated on the side cutting edge deteriorate the machined surface roughness. The tears are cut off by the trailing end cutting edge at a negative tool setting angle. Burrs generated at the tool setting angle less than -0.1° are another cause for the deteriorating the machined surface roughness.抄録全体を表示PDF形式でダウンロード (9479K) -
進村 武男, 刈込 勝比古, 萩生田 善明, 中川 威雄1988 年 54 巻 10 号 p. 1999-2005
発行日: 1988年
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (3100K)
- |<
- <
- 1
- >
- >|