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49 巻, 12 号
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鎌田 弘, 松永 和夫, 坂本 祥1983 年 49 巻 12 号 p. 1601-1606
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーThis paper describes the relation between printer mechanical stacking characteristics and paper physical properties. The main results of this paper are shown as follows: (1) In paper stacking, main factor of paper inclined phenomena are paper fiber orientation angle and moisture content change. (2) The sonic method using sound-wave propagation is effective for the measuring method of paperfiber orientation angle. (3) By using geometric method, the paper inclined 'value is analyzed. The paper inclined value is proportional to the paper fiber orientation angle, moisture content change and heat contraction ratio. (4) By the above mentioned results, the most optimum distribution is designed between mechanical stacking characteristic specification and paper physical property value.抄録全体を表示PDF形式でダウンロード (1093K) -
石川 憲一, 市川 浩一郎1983 年 49 巻 12 号 p. 1607-1612
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーIn this study a vibratory multi-blade cutting method based on the conventional method was developed. Hard and brittle materials such as ceramics and rock crystal can be sliced to produce units of same shape in quantity by this method. Machining characteristics and accuracy of this method were studied, and the following results have become clear. (1) Not only the vibratory method can produce high machining efficiency as compared with the conventional method, but also it can produce machining efficiency which is approximately constant when the stroke length is larger than thewidth of the workpiece. (2) In this experiment, the increase in machining efficiency using the vibratory method is proportional to the second powerof the amplitude and to the 1.2th-1.4th power the combined mean velocity. (3) The width and depth of the cutting gaps are maintained within ±10μm in the same manner as in the conventional method, if working pressure is less than about 0.3MPa. (4) The amount of material removed is proportional to the wear amount of the blades in both the conventional and vibratory methods. (5) No chipping and cracking were observed on the edge of the machined surface in the vibratory method.抄録全体を表示PDF形式でダウンロード (1309K) -
坂田 興亜, 碓井 雄一1983 年 49 巻 12 号 p. 1613-1619
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーThis paper deals with to make clear the mechanical properties such as apparent axial modulus of elasticity and strength, of the adhesive bonded butt joints of tubular type. Theoretical results on the apparent axial modulus calculated with the extended G. H. Lindsey's method, are compared to the results in experimental tensile tests of butt joints bonded with epoxy-polyamide adhesive. It is shown both in theoretical calculation and experiment that the apparent axial modulus of elasticity of joint fairly increases along with the increase of thickness of adhesive layer for the large Poisson's ratio. However, the modulus measured in the experimental test does not always coincide with the theoretical results as far as the thickness of adhesive layer is kept extremely thinner, because of the increase of unhomogeneity of the adhesive layer. Concerning of joint strength, joint fracture is brought when the strain in an adhesive layer that is comparatively thick, attains to a constant level. And the maximum shear stress in it also increases with the increase of adhesive layer.抄録全体を表示PDF形式でダウンロード (1163K) -
西田 公至, 飛瀬 修1983 年 49 巻 12 号 p. 1620-1625
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーThis paper describes theoretical and experimental studies on the sound field around a vibrating rectangular solid enclosure. In the computation, it is assumed that the effects of diffraction and reflection of sound can be neglected, and that the vibration of each plate of the enclosure can be expressed approximately by using the normal function of a rectangular plate with simple support along all edges or the composite normal function by the product of those of two clamped beams perpendicularly intersecting each other. The sound pressurelevel distribution has been measured in more detail with the sound visualizing device built as a trial. The results obtained are as follows: (1) The diffraction effect is small in the field near each surface of the enclosure and the computation can be applied to a plate in the first mode vibration but not in the higher mode vibration. (2) The composite normal function holds to a fairly good approximation and experimental values agree well with computed results. (3) The state of a sound field like sound pressure level distribution can be grasped in detail by the sound visualizing method.抄録全体を表示PDF形式でダウンロード (1333K) -
1983 年 49 巻 12 号 p. 1625
発行日: 1983年
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (218K) -
クリープフィード研削における研削焼け発生条件島宗 勉, 餠田 正秋, 小野 浩二1983 年 49 巻 12 号 p. 1626-1633
発行日: 1983/12/05
公開日: 2010/01/20
ジャーナル フリーIn creep feed grinding the grinding force and its distribution on the contact face between wheel and workpiece is discussed theoretically. The conditions for the occurrence of grinding burn in up cut grinding is analyzed according to the relation of an out-flow and an inflow of the grinding heat energy at the end of contact face. From the results, the effects of operating parameters on the occurrence of grinding burn are investigated theoretically and verified experimentally. The following phenomena in creep feed grinding are clarified. (1) The difference between up cut grinding and down cut grinding has larger influence on horizontal grinding force thanvertical grinding force, and the horizontal grinding force in down cut grinding is remarkably smaller than it in up cut grinding. (2) The maximum grinding energy flux at the end of contact face when grinding burn begins to occur varies with chip volume and the time that grinding wheel require to pass contact face. (3) The critical wheel speed without grinding burn is determined by wheel depth, work speed and percent wear flat area of grinding wheel, but it is not under the influence of grinding width. (4) To avoid grinding burn in no case of changing wheel depth and work speed, wheel speed less than a few hundred meters a minute is effective. In the case of the precision dressing remarkable reduction of wheel speed is recommended.抄録全体を表示PDF形式でダウンロード (1650K) -
工作機械構造の接合面の動特性に関する基礎的研究(第5報)久米 靖文1983 年 49 巻 12 号 p. 1634-1638
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリー本報告は計算機を利用して機械構造を設計する際に必要な機械構造の減衰能を評価しようとしたものであり,減衰の中で特に各部材の材料減衰と結合部の接合面減衰について検討した,その結果をまとめると以下のようになる.
カップリング状モデルの材料減衰,カップリング上部とカップリング下部との接合面の局部すべりによる減衰,球と平面の接触面での局部すべりによる減衰という三つの減衰をもつカップリング状モデルについて接合面が固着に近い場合の減衰能をそれぞれの減衰機構によって1サイクル中に消散されるエネルギーと内部に蓄えられる最大エネルギーを求めて,損失係数で評価することができた.抄録全体を表示PDF形式でダウンロード (1030K) -
ドリハの切削抵抗変化特性藤吉 正之進, 小林 明発, 清水 昭入1983 年 49 巻 12 号 p. 1639-1644
発行日: 1983/12/05
公開日: 2010/01/20
ジャーナル フリーIn this paper, a new cutting tool named “driha” is introduced. The tool can perform smoothly both drilling and cutting out of architectural sheet materials, especially board materials such as plywood and aluminum board by hand work. In order to clarify the cutting mechanism of the tool, thecutting resistance variation of driha is measured accurately and compared with the groove cutting process by endmill. The results obtained are as follows: (1) Cutting resistance variation of driha is quite different from that of endmill. (2) The cutting resistance characteristics of driha depend strongly on the length of cylindrical land.抄録全体を表示PDF形式でダウンロード (1438K) -
清水 伸二1983 年 49 巻 12 号 p. 1645-1651
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーボルト締結部のボルト頭部座面と結合面の圧力分布の関係について有限要素法により理論的に考察した結果次のことが明らかとなった.
(1) ボルト頭部座面圧力分布を頭部外周側へ拡大あるいは移動することによって,結合面圧力分布のボルト軸心側への片寄りは緩和され,より一様な圧力分布状態に近づくとともに圧力作用範囲も大きくなる。このような座面圧力分布は,ボルト頭部座面のボルト軸部周辺をぬすむことによって容易に実現できる.
(2) ボルト頭部座面圧力分布は,締結体厚さTの影響はほとんど受けないが,締結体材質の影響は受ける.
(3) 座面の等価圧力作用直径deqを基点とした新しい圧力円すい半角θeqを導入することにより,結合面圧力作用範囲Dpを次式のように画一的に表現でき,従来より正確にDpの推定が可能となる.
Dp=deq+2Ttanθeq
(4) deqは,締結体厚さとは無関係に一定であるが,ボルト頭部寸法,座面ぬすみ径,締結部構成要素の材質の組合せの影響を受ける.
(5) θeqは締結体厚さ,ボルト頭部寸法およびその材質,座面ぬすみ径とは無関係に一定であるが,締結体とベースの縦弾性係数の影響を受け,両者の比が定まれば一義的に決定できる.例えば,その比が1の場合は,θeqは56°となる.抄録全体を表示PDF形式でダウンロード (1220K) -
Razor blade法松井 正己, 田牧 純一1983 年 49 巻 12 号 p. 1652-1657
発行日: 1983/12/05
公開日: 2010/01/20
ジャーナル フリーBy a statistical approach razor blade method (measuring method of wheel surface topography) is analyzed theoretically and experimentally. Results are summarized as follows: (1) The number of effective cutting edges measured by razor blade method is the number of the total effective cutting edges.(2) The density of the total effective cutting edges measured by razor blade method is calculated theoretically. (3) The width of razor blade must be set up so as to satisfy the condition that the averaged number of effective cutting edges simultaneously cut the razor blade is less than 1. (4) The experimental density of the total effective cutting edges is somewhat less than the theoretical one.抄録全体を表示PDF形式でダウンロード (1026K) -
松本 弘一1983 年 49 巻 12 号 p. 1658-1662
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーSynthetic wavelength method is described for determining long lengths with a high accuracy and efficiency. The synthetic wavelengths, 84.2μm and 464μm, are produced by squaring and filtering the interference fringes derived from a two-wavelength simultaneous interferometer whose light sources are a 3.51- and 3.37-μm He-Xe laser and a 3.39-μm He-Ne laser. As concerns accuracies required in measuring long lengths, this method is discussed to be more useful than the method of excess fractions well known in length measurement. Several techniques also are given for measuring lengths accurately. Using the two-beam infrared interferometer, gauges of 0.8- and 3-m long were measured over several months. The standard deviation of the measured phase of the 84.2-μm signal was less than 2π/100 and that of the 464-μm signal less than 2π/50. These results are enough to uniquely determine lengths up to 5 m with an accuracy of 1×10-7.抄録全体を表示PDF形式でダウンロード (903K) -
賀勢 晋司, 沢井 実1983 年 49 巻 12 号 p. 1663-1668
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーOn an application of staircase method with small number of sample to the thread-loosening test which is characterized by a three-level judgment, a theoretical study and an experimental examination are made. The purpose of this paper is to aim at an improvement of the evaluation method of the locking performances of test specimens. Analyzing the distributions, the biases and the variances on the estimated values of locking performances, the features of this method are made clear and a working guide of test is induced concerning the starting value and the step width of the evaluation factor and the sample size. On the case of the transverse vibration type thread-loosening test, one rule of the judgments on loosening is suggested and the usefullness of this method is shown through the experiments. Besides, the influences of test conditions, especially the running speed and the lubricant, being examined to a certain extent, some matters to be taken notice are pointed out.抄録全体を表示PDF形式でダウンロード (1189K) -
石田 博史, 林 聡哉, 鄭 然植, 青山 藤詞郎, 稲崎 一郎1983 年 49 巻 12 号 p. 1669-1672
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーChanging process of surface roughness during cylindrical plunge grinding was measured by using the in-process roughness sensor developed by authors. The time required for that the surface roughness becomes constant in one grinding cycle was obtained for various kinds of grinding conditions. It was confirmed through the experiment that the changing process of surface roughness was closely related to the changing process of workpiece radius. The result obtained in this study is very useful to rationally determine the cylindrical grinding cycle.抄録全体を表示PDF形式でダウンロード (804K) -
川辺 真嗣, 榎本 昌之, 木村 文彦, 佐田 登志夫1983 年 49 巻 12 号 p. 1673-1679
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーThis paper describes the development of a programming system for automatic measurement by use of NC three coordinate measuring machines based on a part model in a computer. A part model is the set of organized data which describe the features of a machine part such as geometry, dimensions and so on. An operator provides a set of instructions for measurements with the system in the programming language developed in the study. Each instruction to be given contains the information about geometric elements to be measured anda measuring item such as distance, angle, diameter and so on. In the language the geometric elements such as faces and holes can be specified by the unique name attached to the part model. Utilizing the part model, the system processes the provided instructions and automatically determines measuring positions and the probe movements to carry out the requested measurements. The system has the ability to detect collisions between the probe and the part during measurements and to generate other probe movements to avoid them. Some experimental measurements and the data processing were carried out to prove the effectiveness of the programming and measuring system.抄録全体を表示PDF形式でダウンロード (1241K) -
星 鉄太郎, 高本 洋祐1983 年 49 巻 12 号 p. 1680-1686
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーA theoretical model is presented for the onset of the vibration in the plunge-cut cylindrical grinding that generates vibration marks on the finished surface appearing parallel to the workpiece axis. In addition to the well understood regenerative effects, the theory takes into account the contact stiffnessof those abrasive grains on the wheel surface that do not cut but only rub against the workpiece surface, and the dynamic force variation that occurs in the grinding process synchronized with the revolution of the grinding wheel. Validity of the theoretical model is supported by the shop floor practice and by the grinding experiment carried out in this study.抄録全体を表示PDF形式でダウンロード (1246K) -
表示値の安定性と信頼性谷村 吉久1983 年 49 巻 12 号 p. 1687-1691
発行日: 1983/12/05
公開日: 2010/01/20
ジャーナル フリーWhen compared with an usual Michelson interferometer, the laser interferometer in this study has an advantage of the good stability of a displayed value because the prisms in the interferometer make a pair of them and the optical paths are arranged symmetrically. In this study it isclarified with the theoretical analyses and experimental results that the stability is better by about 10 times than the Michelson interferometer. The reliability of a measured value of length has also been checked, comparing the value with the result obtained by a commercial type of ×10 extender device.抄録全体を表示PDF形式でダウンロード (1022K) -
中間調を用いた図の作成近藤 邦雄, 木村 文彦1983 年 49 巻 12 号 p. 1692-1697
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーThe purpose of this study is to devise a suitable method of the rendering for better man-machine communication in the manipulation of pictures by computers with this method, one can easily get an impression of 3-D shapes by pictures. In this paper, the followings are studied: (1) A classification of the pattern for directly rendering the shade of curved surfaces, (2) an investigation of techniques for easy creation of halftone pictures with computers, (3) a creation of softwares for displaying animpression of curved surfaces with shaded patterns. The following results are obtained: (1) This method, which interactively creates pictures by an emphasis and/or an omission of characters of shapes, is a good method that is helpful in getting the impression of curved surfaces. (2) The classification of patterns to show the difference of shapes is established. (3) The software is available not only for representing the characters of shapes but also for producing some pictures for a poster and so on.抄録全体を表示PDF形式でダウンロード (1626K) -
河田 伸一1983 年 49 巻 12 号 p. 1698-1707
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (1944K) -
松家 英雄, 野口 正浩1983 年 49 巻 12 号 p. 1708-1715
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (1379K) -
鳴瀧 則彦1983 年 49 巻 12 号 p. 1716-1717
発行日: 1983/12/05
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (421K)
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