巻号一覧
69 巻, 9 号
選択された号の論文の26件中1～26を表示しています
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吉田 庄一郎2003 年 69 巻 9 号 p. 1215
発行日: 2003/09/05
公開日: 2009/04/10
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早乙女 康典2003 年 69 巻 9 号 p. 1221-1225
発行日: 2003/09/05
公開日: 2009/04/10
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安藤 弘行2003 年 69 巻 9 号 p. 1226-1229
発行日: 2003/09/05
公開日: 2009/04/10
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森 敏彦2003 年 69 巻 9 号 p. 1230-1233
発行日: 2003/09/05
公開日: 2009/04/10
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宮坂 元博, 徳島 秀和2003 年 69 巻 9 号 p. 1234-1237
発行日: 2003/09/05
公開日: 2009/04/10
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吉岡 俊朗2003 年 69 巻 9 号 p. 1238-1241
発行日: 2003/09/05
公開日: 2009/04/10
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中村 良光, 吉田 徳雄2003 年 69 巻 9 号 p. 1242-1245
発行日: 2003/09/05
公開日: 2009/04/10
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野村 俊2003 年 69 巻 9 号 p. 1246-1251
発行日: 2003/09/05
公開日: 2009/04/10
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松木 則夫, 徳永 仁史, 小島 俊雄, 木村 文彦2003 年 69 巻 9 号 p. 1253-1258
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーThis paper describes a method for sharing history-based parametric modeling data of free-form shape with different CAD systems and storing them in a form of text information. Parametric is quite effective, however, parametric modeling data is valid only in the exact same CAD systems because these data depends deeply on the programming algorithms and system tuning parameters such as tolerance. In the method, guidelines to decompose a conventional CAD operation into appropriate programming units (software components), which can be sharable among different CAD systems, are shown. B-spline surface generation system is developed to verify the effectiveness.抄録全体を表示PDF形式でダウンロード (4455K) -
水上 良明, 小坂田 宏造2003 年 69 巻 9 号 p. 1259-1263
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーA three-dimensional fabrication method for metallic and ceramic tools is proposed. In this process, models are produced by compacting the powdered material with subsequent milling of grooves in layer-by-layer, and the density distribution caused around the grooves in the compacting processes is utilized for the model separation. To determine the optimum working conditions such as layered pitch and the dimension of the grooves, the density distribution is estimated by simulation using the rigid-plastic finite element method. A relation between the relative density and the transverse strength is measured for the tungsten carbide powder used in this research. It is found that the relative density inside the grooves decreases with the decreases of the ratio of width of the groove and layered pitch, and that the model parts can be separated according to the grooves when the transverse strength ratio of the model area and the groove area is greater than 8. Employing these conditions, a tungsten carbide truncated cone model is successfully fabricated.抄録全体を表示PDF形式でダウンロード (2249K) -
倉賀 野穰, 鈴木 宏正, 宝田 洋佑, 木村 文彦2003 年 69 巻 9 号 p. 1264-1269
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーIn CAID (Computer Aided Industrial Design) systems, a free form surface design generally starts with defining characteristic curves in 3D space. Based on these characteristic curves, basic curved surfaces are then generated so as to interpolate them. It is required that these curves be connected in order to compute interpolating surface patches. However, it is desirable to give the designers more freedom to allow them to define the characteristic curves without considering their connectivity. In this research, we propose a method called "Curve Wrapping" to generate the connectivity from a set of unconnected characteristic curves by using "a graph searching mesh" technique. And using this connectivity, the curves are adapted to form a graph so that subdivision surfaces are generated using a subdivision surface fitting method and the "combined subdivision" method. A prototype system was developed to evaluate the approach using some examples.抄録全体を表示PDF形式でダウンロード (2493K) -
梅田 靖, 比地原 邦彦, 大野 雅史, 小川 康暢, 小林 英樹, 服部 光郎, 増井 慶次郎, 深野 彰2003 年 69 巻 9 号 p. 1270-1276
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーThis paper proposes a decision support methodology for life cycle strategy in environmentally conscious product design. Here, decision of life cycle strategy includes decision of objectives of design modification and selection of appropriate life cycle options, such as upgrading, remanufacturing, maintenance, and reuse. Since main objectives of this research include offering simple and convenient tool to designers, quality function deployment is employed. The basic idea of this methodology is to analyze main disposal causes of a product by using "disposal cause analysis matrix, " which is proposed here, and to modify design of the product so as to reduce analyzed disposal causes. This will results in extension of product life and long-term usage of components. The methodology consists of three steps; namely, analysis of disposal causes of a product, selection of life cycle options and components to be replaced, and modularization of the product. This paper also illustrates a result of a case study using a cellular phone. This result reveals that the proposed methodology can successfully support the decision process of life cycle strategy.抄録全体を表示PDF形式でダウンロード (2383K) -
広瀬 修, 石井 明2003 年 69 巻 9 号 p. 1277-1280
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーAn inspection method of color shading defects on the anti-reflection coating is described. In general, it is hard to automatically inspect these defects because of its difficulty to quantify what kind of impression the defect gives to viewers. Therefore, the sensory inspections depending on the human perceptions are adopted for these defects, reluctantly. This paper shows the mechanism of the color shading defects on the anti-reflection coating by using a simulation method. The simulation results were validated by corresponding experimental results being in accord with each other. Then, the correlation between coating thickness and the color shading is described. A quantification method, which is based on the Equivalent Coating Thickness estimated by observed color distributions, is suggested. In addition, the observation condition to have a good view of defects is described.抄録全体を表示PDF形式でダウンロード (2119K) -
佐藤 浅次, 佐藤 治, 河野 通夫, 甲斐 恵子2003 年 69 巻 9 号 p. 1281-1285
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーA performance criterion for saving energy is defined in consideration of energy consumption of driving source. It is necessary for saving energy of direct-drive manipulator to make the mechanism lighter. In this paper, equations of motion of a closed-type manipulator, whose mechanism can easily be made lighter, are derived in consideration of characteristics of the DC servomotors. When the manipulator is operated in a vertical plane, the system is highly non-linear due to gravity and an analytical solution can not be found. Then, a numerical approach is necessary. Considering the final condition about angular displacement and angular velocity, trajectories of velocity for saving energy are calculated by iterative dynamic programming. Initial searching region of dynamic programming is a shape which is surrounded by two sine-wave translated in parallel. This proposed searching region is used as a initial range of the iteration method, and the region is shifted along the axis of coordinate of angular displacement to minimize the energy consumption of the motor. The dynamic characteristics of manipulator controlled based on above mentioned trajectory are analyzed theoretically and investigated experimentally.抄録全体を表示PDF形式でダウンロード (1491K) -
直交軸出力形の動作原理寺田 英嗣, 深澤 智明, 入江 禀三2003 年 69 巻 9 号 p. 1286-1290
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーThe orthogonal axis output type precession motion ball reducer has been newly developed The element of the reducer consists of five components; an inclined input shaft a fixed ring, a precession motion rotor with freely rotating balls, a spherical converting rotor of the precession motion and an output ring. Especially, this converting rotor makes a precession motion around the different rotating axis, which axis is orthogonal to an input shaft Also, the freely rotating balls are arranged on the precession motion rotor, which positions are different from the co-axial output type. This is the only method of the solution, which can eliminate the backlash for the orthogonal axis output type reducer. In this report, the motion principle is analyzed using the polar complex vectors analysis which is similar to the co-axial output type. It is proved that the position of each ball attached on the precession motion rotor is the important parameter as like the co-axial output type. Also the offset angle of that converting rotor is important, too.抄録全体を表示PDF形式でダウンロード (1848K) -
理論的・実験的検討中島 隆介, 高橋 哲, 三好 隆志, 高谷 裕浩2003 年 69 巻 9 号 p. 1291-1295
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーIn modern semiconductor manufacturing processes, the design rule will shrink to under 100nm scale. In order to reduce and control yield loss in such a fabrication process of next generation ULSI devices, nano-defects inspection technique for polished Si (Silicon) wafer surface becomes more essential. This paper discusses the new inspection method of nano-defects in the vicinity of Si wafer surface by detecting infrared (IR) evanescent light emerging on the surface. In this method, by using evanescent light based on near field optics for defect detection, it enables to detect nanometre scale defects without diffraction limit to resolution. To verify the feasibility of this proposed method, both of the computer simulations based on Maxwell's equations and the several fundamental experiments are performed. FDTD simulation shows that the proposed method is effective to detect nano-defects existing not only on Si surface but also in the subsurface with high sensitivity. And also the fundamental experiments show the validity of this method by demonstrating nano-defects detections of subsurface as well as surface.抄録全体を表示PDF形式でダウンロード (5468K) -
大関 衡和, 荻原 元徳, 境 久嘉, 栗山 豊, 増田 裕樹2003 年 69 巻 9 号 p. 1296-1300
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーIn laser interference measurement, if an amplitude error, a phase error and an offset error are in the two phases sine wave signals which is the output of a laser interferometer, the uncertainty of the position which interpolated below the laser wavelength interval increases.This paper describes the technique of reducing the uncertainty of the interpolated position by presuming the position below a wavelength interval from two phases sine wave signals which compensated the amplitude error, the phase error and the offset error. Furthermore, it was shown that the uncertainty of the calibration below a wavelength interval can be presumed based on two phases sine wave signals.抄録全体を表示PDF形式でダウンロード (1735K) -
餅田 恭志, 鈴木 啓生, 鐘ヶ江 祥, 田中 芳雄, 西岡 隆夫, 水谷 勝己, 足立 和俊2003 年 69 巻 9 号 p. 1301-1305
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーA novel method of grinding simulation, designated by Lattice point Interference Method(LIM), is proposed. In the LIM, it is assumed that a work and a wheel expressed by sets of three-dimensional lattice points, material removals are carried out by interference of abrasive lattice points and work ones. The LIM is applied to grinding with two types of grinding wheel; the one has uniformly distributed abrasive grains, the other randomly distributed ones.
The effects of abrasive grain distribution and grain supporting stiffness on grain depth of cut are investigated.
It is revealed that the wheel with uniformly distributed grains has an advantage in getting narrower dispersion of grain depth of cut in case of high effective compliances of grain supporting bond cPm(c; compliance of grain supporting bond, Pro; hardness of work).抄録全体を表示PDF形式でダウンロード (530K) -
濱村 実, 藤田 純, 垣野 義昭, 松原 厚2003 年 69 巻 9 号 p. 1306-1311
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーThis paper considers contouring errors in circular interpolation on NC machine tools. It is shown by using analytical models that the difference of the following three properties between two axes causes an elliptical error on circular interpolation: the driven mass, the stiffness of feed drive system, and the viscous damping coefficient of linear guide. Especially, the inertia force causes a different error on each axis, and the viscous friction slopes the elliptical contouring error profiles. Several motion tests are conducted by using a horizontal machining center. Measured contouring error profiles coincide well with simulated results.抄録全体を表示PDF形式でダウンロード (1865K) -
通常砥石による仕上げ研削加工法としての可能性長尾 敏行, 山田 弘文, 石川 憲一2003 年 69 巻 9 号 p. 1312-1316
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーIn this study, "New Grinding Method Using Inert Gas Supplied out Wheel" that controlled chemical reaction occurring between grains and a workpiece in grinding process which was a factor of the wheel wear was devised.
Experimental evaluations to foresee the possibility that new processing to grind the carbon steels should made the more effective finishing way in grinding processing carried out the following results. (1) Suppressed attrition wear of the cutting edge of the grain in the case of the new grinding using inert gas supplied out wheel has brought out the good cutting ability of the grain. (2) The amount of the minimum stock removal in grinding with the new method was larger than that in the atmosphere grinding. The minimum grounded depth of the workpiece obtained by one pass grinding was as about 0.3μ m to the given 0.5μ m down feed for a conventional Al 2O3 wheel. (3) The surface roughness of the workpiece obtained in the case of the new grinding was also more superior than that in the atmosphere grinding. (4) The new grinding method showed the better performance in comparison with that in the atmosphere grinding.抄録全体を表示PDF形式でダウンロード (3600K) -
森重 功一, 井沢 祐弥, 竹内 芳美2003 年 69 巻 9 号 p. 1317-1321
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリー5-axis control machining can create workpieces with complicated shape difficult to machine by 3-axis control. Moreover, 6-axis control machining can cope with workpieces impossible to machine by rotational tools since it can control the direction of nonrotational tool. Though 5-axis control machining which uses rotational tools is advantageous in terms of the machining efficiency, the cutting remainings peculiar to the rotational tool take place at the corner part of workpiece shape. On the other hand, 6-axis control machining can machine the corner part, which cannot be removed with the rotational tool, though it has the low machining efficiency. The use of two machining methods together seems to be very effective to improve the machining efficiency. This research investigates the highly efficient and accurate machining method using 6-axis control machining together with 5-axis control one. The algorithm to generate the cutter location data is developed in consideration of the use of 5-axis and 6-axis control machining, and it is implemented to the integrated CAM software for 5-axis and 6-axis control machining. As a result, it is experimentally found that the system enables the effective and accurate machining.抄録全体を表示PDF形式でダウンロード (3540K) -
佐藤 運海, 山崎 隆夫, 三木 一隆, 川久保 英樹, 手塚 佳夫, 土屋 和博, 佐藤 元太郎2003 年 69 巻 9 号 p. 1322-1326
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーAt the solder ball mounting process on the CSP (chip size package), must have inspection of solder ball residue on the vacuum nozzle (inhaling tool). This study is how to detect solder ball residue during vacuum nozzle moving when using laser through-beam sensor. First, create a slit on the laser receiver that increasing sensitivity of laser through-beam sensor and confirmed the improvement. The slit is created to increase sensor output value that compares result of solder ball residue on the vacuum nozzle with or without solder ball. Next, we supposition production line and study the vacuum nozzle movement error. Therefore when vacuum nozzle movement error is occur then measure sensor output value. Then we attempt to use first differential value. With this result, we discover following. (1) The solder ball recognition on the CSP can be detect by laser through-beam sensor. (2) We confirmed effectiveness of the slit on the laser receiver unit. (3) If vacuum nozzle has movement error, we can use first differential value to avoid influence of vacuum nozzle movement error to recognize the CSP solder ball.抄録全体を表示PDF形式でダウンロード (1968K) -
3面バランス修正の効果奥村 太史, 堤 正臣2003 年 69 巻 9 号 p. 1327-1331
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーIn this paper, a method for reducing the run-out and vibration of high speed spindles of machining centers is experimentally investigated. In the experiment, the run-out and vibration of a conventional spindle designed by one of authors have been measured by using two displacement sensors and a field balancer with two accelerometers. It is found from the experimental results that both of them can not be reduced at the same time. To overcome the problem, a new unit with a shorter spindle than the conventional one has been developed. The modified spindle unit was designed for high speed and high precision machining centers. This unit has three balancing planes to reduce the run-out and vibration due to the unbalance mass. Two balancing planes are arranged on both ends of spindle, and third one is arranged near to the rotor of motor between two support bearings. Using the modified. spindle unit, the run-out and vibration have been investigated. It is confirmed that the proposed method is useful to reduce the vibration and run-out at the same time. It is also found that a high speed spindle for machining centers should be considered as a flexible rotor system rather than a rigid one.抄録全体を表示PDF形式でダウンロード (2186K) -
陰極Al(001)表面における除去加工現象の第一原理分子動力学シミュレーション後藤 英和, 広瀬 喜久治, 當間 康, 小畠 厳貴, 稲田 敬, 森 勇藏2003 年 69 巻 9 号 p. 1332-1336
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーIn order to reveal the mechanism of the electrochemical processes of cathode surfaces in ultrapure water, first-principles molecular-dynamics simulations of chemical reaction on the Al(001) surfaces interacting with H atoms, H2O molecules and OH molecule were carried out on the basis of the Kohn-Sham local-density-functional formalism. A plane-wave basis set was used, and the cut-off energy is 594eV(64Ry). A norm-conserving pseudopotential was also used. We adopt the standard molecular-dynamics method for the optimization of the ionic system and the preconditioned conjugate-gradient (CG) method for the quenching procedure of the electronic degrees of freedom. We determined the optimized atomic configurations and electronic distributions for H atom and H2O or OH molecule chemisorbed Al(001) surfaces. It was confirmed that an H atom reacts with H2O molecules on the Al(001) surface to produce an OH molecule. Chemisorption of an OH molecules and H atoms to the Al(001) surface atom breaks the back-bonds and side-bonds, and the Al(001) surface atom is etched as an AIH2OH molecule. From these simulated results, we concluded that the electrochemical etching of Al(001) cathode surface in ultrapure water is induced by H atoms and OH molecules.抄録全体を表示PDF形式でダウンロード (7986K) -
大西 修, 鬼鞍 宏猷2003 年 69 巻 9 号 p. 1337-1341
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーThis paper describes the effects of ultrasonic vibration on the characteristics of microdrilling into inclined surface. In the experiment, duralumin with an inclined surface of 15-60 degrees is drilled with ultrasonic vibration by carbide drill of diameter lmm. The frequency of ultrasonic vibration is 40kHz and its amplitude is 3.5μm. As a result of the experiment, it is found that ultrasonic vibration improves dimensional accuracy and form accuracy. By observing the drilling process at the beginning of penetration using a quick-stop device and by analyzing radial forces, it is cleared that applying ultrasonic vibration improves the engage performance of drill at the hole entrance. The reason for this may be that effects of ultrasonic vibration such as hammering motion, reduction of cumulative displacement of drill due to intermittent cutting and reduction in friction reduce the skidding and the wandering of a drill at, the hole entrance. Because the microdrilling with ultrasonic vibration into a workpiece which has large inclination angle such as 60 degrees could be done well and has better accuracy than microdrilling without vibration, it is found that application of ultrasonic vibration is useful to drill into an inclined surface.抄録全体を表示PDF形式でダウンロード (4116K) -
河田 圭一, 中村 隆, 松原 十三生, 佐藤 豊2003 年 69 巻 9 号 p. 1342-1347
発行日: 2003/09/05
公開日: 2009/04/10
ジャーナル フリーRecently, waste treatments in the traditional coolant system have been causing increase in manufacturing costs because of environmental concern. A new cutting fluid supply system (Oil film on Water fog: OoW) has been proposed for an environmental measure. The new system supplies the comparatively large water particles covered with very thin vegetable oil to a machining point with air jet. In this paper, milling tests, shaping two cylindrical bosses from an aluminum alloy block, are carried out, and the machining accuracy is examined for the practical use of this system. The experimental results are compared with the results used conventional coolant and minimal quantity of lubricant (MQL). As OoW has an enough cooling ability, the accuracy of products with OoW is finer than that with MQL, and is as same as that with conventional coolant. Consequently, it is concluded that the new system is expectable as one of the ecological-friendly machining methods.抄録全体を表示PDF形式でダウンロード (2067K)
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