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後続誌
42 巻, 504 号
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奈良 治郎1976 年 42 巻 504 号 p. 1088-1095
発行日: 1976/12/05
公開日: 2009/06/30
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多変量解析による吉田 正昭1976 年 42 巻 504 号 p. 1096-1101
発行日: 1976/12/05
公開日: 2009/06/30
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三縞 育雄, 中野 健一1976 年 42 巻 504 号 p. 1102-1108
発行日: 1976/12/05
公開日: 2010/02/16
ジャーナル フリー以上を要約すると次のようになる.
(1)人間は視覚,触覚ともRrmsまたはRmaxとともにピッチ等によって表面粗さの程度を判定しており,これらの影響の度合により個人差があり被験者をP type,R typeに区分するとP typeの人が多い.特に被験者のグループ別では表面粗さに関係が深いグループほどP typeの人が多い.また官能の種別では触覚より視覚,先端形状別では尖より丸の方がピッチの影響を強く受けている.
(2)実験IIに用いた試料の範囲では一対比較における人間の判断には危険率5%で一意性があり識別能力がある.
(3)一対比較におけるピッチ差の影響度合として,実験IIの場合の1μmRmax差に相当する官能ピッチを求めることができた.
(4)判定にピッチ差の影響の入らない2試料間にピッチ差のない試料の組合せにおける正解率は粗さ比の対数に比例する.
なお,別の解析法として測定者個人の情報処理過程の解析,多次元尺度構成法による解析などが発表されている.測定精度を高めるためには訓練効果,適性などのほか他の加工法における加工面との関連など究明しなければならないことは多い.抄録全体を表示PDF形式でダウンロード (1310K) -
測定老のモデルと解析野呂 影勇1976 年 42 巻 504 号 p. 1109-1113
発行日: 1976/12/05
公開日: 2009/06/30
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斉藤 幸子1976 年 42 巻 504 号 p. 1114-1120
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリー検査員A,検査員B,研究者,素人群の触粗さ,視粗さの平均非類似度行列にMDSCALを適用し,これまで1次元尺度として扱ってきた粗さ感を多次元的に分析した結果,図5に示すような2次元構造を引き出すことができる.これらの構造は同じ実験結果から別の手法で求められた1次元尺度構成の結果をよく説明すると共に1次元尺度上では見い出せなかった物理特性との対応を2次元構造め中に見ることができる.このようにあらさの物理特性空間に対して粗さの心理空間を求めていく場合MDSは有効な分析手法と考えられる.今回は平均データについての分析であったが,MDSの方向としては個人差を考慮した分析手法に向かう傾向にあり,我々の研究も一つはその方向に進んでいる.このことは官能測定における個人差の問題,教育に関連して有益な情報を与えるであろう.抄録全体を表示PDF形式でダウンロード (1039K) -
藤本 定正, 斧田 一郎, 秋田 実, 氷見谷 克麿1976 年 42 巻 504 号 p. 1121-1127,1130
発行日: 1976/12/05
公開日: 2009/06/30
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振動発生機構と切削諸元の解析足立 勝重, 小山 富夫, 村上 浩三1976 年 42 巻 504 号 p. 1133-1138
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーA new vibrating device which consisted of a specially modified Hook's universal joint and other parts was made for this study. The device used in this study was of simple design and can be easily attached to the spindle shaft of any drilling machine. One of the other merits of this vibrating device is its low cost. The drill was rotated at a constant speed and at the same time, vibrated in axial direction twice per revolution of the spindle. The effective rake angle, the effective clearance angle and the cutting ratio varied periodically. The range of the variations near the center of the drill was remarkable. The above phenomena probably lowered the rigidity and exhaust resistance of the chip, and likely extended the drill life.抄録全体を表示PDF形式でダウンロード (944K) -
砥粒と被削材の適合性に関する研究(第6報)松尾 哲夫, 大島 栄一1976 年 42 巻 504 号 p. 1139-1144
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーThe evaluation of single abrasive grains has attracted considerable attention in grinding industry. In the previous research the fly milling chipping characteristic has been extensively studied on various tough grain types using several work materials. In the present study the same chipping test has been made on several friable grain types such as 57 A, 38 A, and diamond, etc. Special interest was concerned with the differences in chipping fracture pattern between the 57 A and 2 A grains, and the 38 A and WA grains. The effects of cutting speed or grinding fluid on chipping performance were also discussed. The 38 A grain was seen to fracture more frequently than the WA grain, but the chipping height was less for the 38 A grain than for the WA grain, while the 57 A grain fractured more frequently than the 2 A grain. The diamond grain has the highest resistance to chipping fracture, but when fractured this grain type gives a high chipping height. Grinding fluid was shown to promote the chipping fracture of grain.抄録全体を表示PDF形式でダウンロード (1054K) -
三面ラッピングにおける平たん化過程(第2報)酒井 義郎, 田中 芳雄, 井戸 守1976 年 42 巻 504 号 p. 1145-1150
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーPreviously, the characteristics of the lapping process were discussed, and as a linear model of the surface form generation in the lapping, a vector differential equation was examined. This equation is used here to predict the change in surface form. The convergency to flat surfaces in the lapping is not always true, because such a process is not necessarily wellbehaved in that sense. In order to qualify the process for the convergency, it is discussed, applying the theory of dynamic programming, how to construct the lapping or to determine the pair of workpieces and the lapped distance at each stage of the process as a deterministic multistage decision problem. Thus it is shown that the process of three stages is rather fundamental or of the least number of stages for any initial surface forms. Some effects of lapping conditions are also investigated in connection with the construction of the lapping.抄録全体を表示PDF形式でダウンロード (1058K) -
金井 実徳, 佐田 登志夫1976 年 42 巻 504 号 p. 1151-1158
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーA method is proposed for gathering the machining informations from the field engineers, instead of from the practical cutting tests, and calculating data files for EXAPT Systems from these informations. The gathered data are punched onto cards and sorted into a Master File after checking errors by a computer. The data in the Master File are plotted into graphs by a X-Y plotter and the trends of the gathered data are examined. It is revealed that the trends of data concerning EXAPT 1 coincide with the System's model, and that the material files and the machining file can be calculated. On the other hand, the trends of data concerning EXAPT 2 (turning) do not always agree with the System's cutting model, but the material files for EXAPT 2 can be created in the following way; 1) introduction of a model of constant feed rate values, irrespective of depth of cut, and 2) as for the model for obtaining cutting speed, calculating from gathered data only important values, and obtaining the others from the standard files. Cutting tests of turning using the material file based on the gathered data are successfully performed.抄録全体を表示PDF形式でダウンロード (1481K) -
佐田 登志夫, 滝口 賢一郎1976 年 42 巻 504 号 p. 1159-1164
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーAn idea of the optimum design of the monitoring system in automated manufacturing is proposed in the paper. The machine system such as a machine tool or an automated manufacturing system is first represented by the flow diagrams of motion, in which a failure in the machine is considered as open or short of a flow path. Next the kinds of the sensors to detect the state of motion and the locations for the sensors to be possibly installed are examined. Analysis of the flow diagrams leads to formulation of the signal matrices of the sensors corresponding to each failure and to determination of the layout of the sensors necessary to identify the type and the location of each failure. Lastly, the optimum layout of the sensors is selected of these sets of the sensors by considering the cost of system operation and the reliability of the sensors.抄録全体を表示PDF形式でダウンロード (909K) -
斉藤 勝政, 鍵和田 忠男1976 年 42 巻 504 号 p. 1165-1170
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーSeveral ways to find the temperature in the grinding wheel in process of grinding have been attempted. In this paper, the temperature distributions in the grinding wheel and the heat flux flowing into the grinding wheel are obtained in surface grinding, by a new method consisting of an experiment and a numerical analysis by means of finite difference equation. That method is characterized by follows: the temperature measurement during only one pass of grinding is required to obtain the temperature distribution in the grinding wheel, the error of temperature caused by existence of a thermocouple is cancelled, and the temperature in the thinner layer below the peripheral surface of grinding wheel is obtained by the finer grid system. And the examination with the numerical analysis explains that a thermometer has unnegligible influence on measured temperature in the grinding wheel.抄録全体を表示PDF形式でダウンロード (1142K) -
石川 雄一, 石川 二郎, 首藤 和男1976 年 42 巻 504 号 p. 1171-1177
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーFor internal gears the measurement of accuracy, such as pitch and profile, is rather difficult and it has not been widely used in gear shops. Some weakness of the usual profile measurement methods has made clear, and the newly developed gear measuring system with 3-coordinates measuring machine and micro computer is applied to the internal gears, which were manufactured by the several manufacturing methods. Not only the individual errors but also the angular transmission errors of these gears have been obtained. It should be remarked that the deformation of gear blank plays a large role in internal gear accuracy, and the careful treatment in the machining and heat treatment of gear blank is necessary for the production of internal gears.抄録全体を表示PDF形式でダウンロード (964K) -
切削工具寿命の解析的予測に関する研究(第1報)北川 武揚, 白樫 高洋, 臼井 英治1976 年 42 巻 504 号 p. 1178-1183
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーThe paper presents a characteristic equation of crater wear of carbide tool in high speed metal machining, which is derived from a model of adhesive wear and a simple analysis with regarding the wear as a thermally activated process. The equation obtained involves not only the effect of temperature on tool-face but also the effects of normal stress and sliding distance as well. By measuring the distribution of the stress, the temperature, the chip sliding speed and the wear rate along tool-face in high speed, orthogonal cutting of carbon steel, it is verified experimentally that the equation holds well regardless of rake angle, feed and cutting speed. It is further stressed that the effect of the normal stress on tool-face appears to be essential for better understanding of crater wear.抄録全体を表示PDF形式でダウンロード (1196K) -
山川 出雲, 小島 宏行, 手島 実1976 年 42 巻 504 号 p. 1184-1189
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーThis paper presents an outline of the experiments as well as the theories on some new ideas for reducing undesirable mechanical vibrations. A Hall-element is used as a non-contact sensor under the magnetic field of a strong permanent magnet attached to the vibrating body. The voltage output of the Hall-element is supplied to an operation circuit in order to modify and amplify the vibration signal into some desired form of damping force, which is fed back to the original vibrating body through a flat coil type electro-magnetic device. The following four kinds of damping are tested in the experiments: (1) Integrated force of vibration displacement, (2) force proportional to the vibration displacement with opposite sign, (3) Coulomb's type damping, and (4) the square damping whose amplitude is proportional to that of the vibration. The experiments and the calculations showed the good coincidence and proved effectiveness of vibration control.抄録全体を表示PDF形式でダウンロード (1178K) -
長谷川 嘉雄, 花崎 伸作, 鈴木 康夫1976 年 42 巻 504 号 p. 1190-1196
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーIn the orthogonal cutting of aluminium, there occurs the overcutting beyond the depth of cut without built-up edge in a certain cutting condition. In this paper, the orthogonal cutting of some soft metals (They are the metals having low yield strength and high ductility.) was conducted and the situation of overcutting was observed. Moreover the overcutting phenomenon was discussed from a view point of the mechanical properties of work material. Some results obtained in this paper are as follows:
(1) The thickness of overcut chip is proportional to the frictional force between the chip and rake face and inversely proportional to the hardness of the chip.
(2) The depth of overcutting is proportional to the vertical component of the frictional force and inversely proportional to the hardness of work material.
(3) In case of the occurrence of overcutting, the following conditions are satisfied. That is, the chip is restrained of its flow intensely and the work material having the work hardening property is soft.抄録全体を表示PDF形式でダウンロード (1451K) -
松井 正己, 田牧 純一, 長谷川 隆1976 年 42 巻 504 号 p. 1197-1202
発行日: 1976/12/05
公開日: 2009/06/30
ジャーナル フリーIn this paper, the probability distribution for the pitch of ground surface roughness is considered both theoretically and experimentally by a statistical method. Results obtained are as follows: (1) The probability density function and the mean value of the pitch of ground surface roughness are analysed theoretically by a statistical method. And the relation between the mean value of pitch and the mean value or the standard deviation of ground surface roughness is derived. (2) The influences of the distribution for the position of grain cutting edge, the distribution for the tip angle of grain cutting edge, the elastic displacement of grain cutting edge and the number of spark-out on the distribution for the pitch of ground surface roughness are obtained by Monte Carlo simulation. Furthermore, the mean value of pitch is calculated from the power spectrum of ground surface roughness curve obtained by Monte Carlo simulation. (3) A few experiments are performed, and the validity of the authors' theoretical analysis is confirmed.抄録全体を表示PDF形式でダウンロード (1053K) -
宮沢 伸一, 宮坂 金佳, 竹山 秀彦, 原田 政志, 古矢 敏征1976 年 42 巻 504 号 p. 1203-1205
発行日: 1976/12/05
公開日: 2009/06/30
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丸山 一男, 大塚 二郎1976 年 42 巻 504 号 p. 1206-1214
発行日: 1976/12/05
公開日: 2009/06/30
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