巻号一覧
後続誌
43 巻, 511 号
選択された号の論文の18件中1～18を表示しています
- |<
- <
- 1
- >
- >|
-
源 良樹, 弓狩 康三1977 年 43 巻 511 号 p. 765-769
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリー生体計測の中で, 固定化酵素を感応部として用いる生体成分の分析法について紹介した.
生体計測とこれに続く惰報処理機能及び制御機能を略図で示すと図5になる.この系は, 生体自身のホメオスタシス (恒常性) の維持に関与しているシステムの模擬ともとれ, 興味深く思われる。
実際にこのような考えに基づいて, 血中のグルコースを連続的に測定して, その値をコンピュータで解析しながら, 血糖を低下させるホルモソであるインシニリンの没与を自動的に識ントロールし, このシステムを糖尿病患者の治療に用いるような試みも行われている.これは, 人工β細胞といわれておるが, 小形化されるならば, 臨床治療に用いられる可能性もあろう.抄録全体を表示PDF形式でダウンロード (882K) -
古川 勇二1977 年 43 巻 511 号 p. 770-776
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (1173K) -
巨視的工具損傷とその要因大草 喜太雄, 高橋 尚郎, 西沢 将敏1977 年 43 巻 511 号 p. 777-783
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーThis paper describes the mutual relation of macroscopic tool's failure and microscopic wear mechanism (described in 2nd Report) during iron and steel cutting. The results are as follows :
(1) Tool's failure made chiefly wear with built-up edge. The forms of tool's failure are classified into five types in the case of such work materials as forms a nose-type built-up, edge. While in the case of a flat-type built-up edge, tools show a simple form of its failure.
(2) Each built-up edge, tool's failure in the high cutting speed is affected by cutting temperature, then the rake face wear increases so large.
(3) Chip-breaker and surface treatment layer out of effective factors for tool's failure give different types against the tool wear.抄録全体を表示PDF形式でダウンロード (2011K) -
遊離砥粒による平行平面加工 (第2報)河西 敏雄, 中田 宏1977 年 43 巻 511 号 p. 784-789
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーKinematical analysis on lapping a ring shaped plate with a circular tool is carried out and numerical equations on stock removal are obtained, taking into account distributed pressure due to the moment of inertia of the area contacted for both work and tool and due to the eccentric load. A newly designed machine, in which distributed presssure is able to be adjusted with eccentric load due to tool weight, was also built. Experimental stock removal, flatness and parallelism values on 360 mm diameter - 2 mm thick aluminum plates for magnetic memory disk, made by the machine, are in agreement with calculated values. In consequence. procedure deducing the equations is found to be satisfactory. The machine obtained here are not only applied to lapping, but are capable of being applied to mirror-polish the surfaces, plated electroless deposited nickel on an aluminum disk.抄録全体を表示PDF形式でダウンロード (1126K) -
石野 喜信, 高橋 岳雄1977 年 43 巻 511 号 p. 790-795
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリー接点ばね定常振動時の接点間しゅう動振幅に及ぼすぼね形状の影響を, 静変形時の荷重一変位特性から検討し, 次のことを見い出した。
(1) 接点間のしゅう動による等価減衰力とたわみ変位振幅の関係は, 接点ばねの曲げ位置に関する無次元量λ1 (λ1=x1/xB.xB;ばね全長, x1;曲げ位置と固定端の距離) と, 接点高さの無次元量H (H=h/β・xB.β;曲げ角, h;接点高さ) の両者をなかだちとして定量化され, 主として (λ1+H) のと接点ばねに固有の値0.288との差で決定される.
(2) 等価減衰力の大きい, すなわち一定駆動力の下でのしゅう動振幅は| (λ1+H) -0.288|を大きくすることによって減少する.
(3) (λ1+H) が等しければHの小さい場合の方が等価減衰力は大きくなる.抄録全体を表示PDF形式でダウンロード (1173K) -
松島 晧三, 原田 義久1977 年 43 巻 511 号 p. 796-800
発行日: 1977/07/05
公開日: 2010/01/20
ジャーナル フリーThere are few studies on man-machine system to clarify the delicate behavior of human hand which is observed in an assembling line and so on. The purpose of this study is to make clear such delicate behavior of human hand in the man-machine system. From this point of view, the compensatory tracking system is constructed and each significance of various factors which may affect on the experiment is inferred by the method of variance analysis. Especially, to clarify the delicate behavior of human hand, the control sticks which are operated by the small movement of fingers are used. Each control stick is supported by a spring, which has small compliance, on the work table, so that the fingers of human operator can accept the reaction force which is proportional to the displacement of the control stick. Through whole experiments on this study, the following facts are made clear comparing with other researches as (1) adaptability of human operator to the change of the system loop gain ; (2) control ability of human operator for the difference of control sticks ; (3) adaptability of human operator to the input bandwidth ; and (4) relation between the control ability of human operator and the input magnitude.抄録全体を表示PDF形式でダウンロード (866K) -
研削砥石の機械的性質に関する研究 (第2報)樋口 誠宏, 矢野 章成, 田中 行雄1977 年 43 巻 511 号 p. 801-806
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーGrinding wheel elasticity should be considered as one of factors which restrict the cutting edge space or the undeformed chip thickness in the wheel-work contact zone. In this paper, the elastic deformation of wheel and the projecting grain density in the contact zone are analyzed, assuming a relatively simple model of wheel based upon the stiffness of grain mounted on spring and the distribution density of grain on the wheel surface. Some experimental results are shown to verify the validity of the analysis.抄録全体を表示PDF形式でダウンロード (1080K) -
加工誤差生成機構藤井 義也, 岩部 洋育, 鈴木 雅晴1977 年 43 巻 511 号 p. 807-813
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーThis paper deals with the geometric error in end milling that depends upon the relative displacements of an end mill to a work. The results are as follows.
(1) In end milling, the geometric error is divided into the type of convex, concave and taper on machined surfaces.
(2) The machined surface is generated by an envelope by the projected curvature of the helical flute of end mill. However, the envelope is approximated by a locus of the top point of the helical flute, and its calculating procedure is shown.
(3) The instantaneous cutting force is experimentally obtained by a dynamometer at each depth from the top to the bottom of a work. Instantaneous displacements of an end mill and a work are experimentally obtaind by applying plate-springs.
(4) It is obvious that geometric error is composited by the displacements of an end mill and that of a work, and that the result of this analysis is almost coincident to the experi-mental values.抄録全体を表示PDF形式でダウンロード (1330K) -
スパークアウト完了後の残留応力岡村 健二郎, 中島 利勝, 宇野 義幸, 梶田 英夫1977 年 43 巻 511 号 p. 814-819
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーIn this paper, the residual stress after the sparkout grinding are experimentally analysed to investigate the final distribution pattern of residual stress in the ground part and the characterizing factors of the distribution of residual stress. The distribution pattern after the sparkout grinding is C-type under any grinding conditions, while the distribution patterns in the steady grinding are classified into three types, depending on grinding conditions. The depth of stressed layer after the sparkout grinding is smaller than that in steady state and has close relation to the product Lc·tmax. Further, the maximum compressive stress, characterizing C-type distribution, is affected by the ratio Lc·tmax/f.抄録全体を表示PDF形式でダウンロード (825K) -
松尾 哲夫, 高木 達郎1977 年 43 巻 511 号 p. 820-825
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーToday, the steel snagging costs have continuously increased and, thus, more intensive research is necessary to find better working conditions and to increase productivity. The 25% zirconia-alumina grain has attracted much attention for snagging industry as an excellent abrasive grain type, but the detail of grinding characteristic of the grain is still not understood. In the present research, a laboratory snagging test of constant pressure has been performed on S 55 C and SK 3 steels, using four regular alumina and zirconia-alumina grain types. The test was made under the loads to 30 kg and at a wheel speed of 3 200 m/min. The metal removal, as well as the wheel wear, increases at a constant speed with grinding time, and the wheel surface was found to have a constant slope. The 25% zirconia grain wheel does not always give higher metal removal rate over the regular alumina grain wheel, but this wheel has the higher G-ratio than the regular alumina wheel because of its lower wheel wear. One of the reasons for the low wheel wear in the zirconia grain wheel is considered to be due to high resistance of the zirconia grain to micro-fracture.抄録全体を表示PDF形式でダウンロード (1350K) -
小林 雅晴, 田頭 孝介, 中江 仁, 星光 一1977 年 43 巻 511 号 p. 826-830
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーThe textures resulting from low speed cutting of Fe-3.14%Si alloy single crystals and polycrystalline specimens are examined by X-ray diffractometer. Some of results obtained are as follows.
(1) Cutting the single crystals with various orientations, some preferred orientations were recognized in the deformed regions.
(2) Cutting textures of polycrystalline specimens could be described as having {011} paral-lel to the cutting plane and <100> parallel to the cutting direction. The dispersion of crystal orientation decreased with increasing grain size of those specimens. This {011} <100> was characteristic component of textures in cutting surfaces, while it did not exsist in cold rolling textures of b. c. c. metals.
(3) The main component {011} <100> of the cutting textures of Fe-Si alloy was stronger in two pass cutting surface than one pass cutting surface.抄録全体を表示PDF形式でダウンロード (848K) -
最初の接触位置の解析および寸法測定精度に関する考察石垣 博行, 川口 格1977 年 43 巻 511 号 p. 831-836
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーInitial contact height in contact between a directional rough surface and a sphere is analyzed theoretically. Effects of surface roughness on length measurement with a hemispherical tip are discussed using the results of the above theory and simulational results. Consequently, the followings are clarified. 1) The theoretical value of initial contact height can be approximated by the mean value of the following two theoretical values : One is obtained on the assumption that the distribution of asperity peak intervals is exponential, and the other is obtained on the assumption that the intervals are constant. 2) As the radius of the tip increases, a mean value of measured length increases, and a standard deviation of measured length decreases. Concerning to the roughness of surface finished by the abrasive paper, the mean values and the standard deviation of measured length are proportional with the standard deviation of asperity peak height distribution. 3) The influence of load on the standard deviation of measured length can be neglected at the usual measuring condition. 4) Theoretical analysis can be verified by experimental results.抄録全体を表示PDF形式でダウンロード (913K) -
板材の放電成形に関する研究 (第1報)河合 栄一郎, 宮川 松男, 六碕 賢亮, 広橋 光治1977 年 43 巻 511 号 p. 837-842
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーThe fundamental forming properties and the behaviour are experimentally studied on the free forming of circular aluminum sheets (A1100-O, 1/2H) clamped at their periphery and formed by the direct method usually acting the impulsive pressure on the blank. The pressure distributions obtained are generally highest at the centre and lower for the periphery. In this forming, the relations among the polar deflection h of blanks formed, the mean forming velocity vh during forming at the pole, the die diamter d (35-70 mm) and the material thickness t0 (0.6-1.0 mm) are approximately found as follows : h is proportional to d0.5 and t0-1, and vh is to d-0.5 and t0-0.5 at each charged energy Wc, and material, and the ratio h/vh (total forming time τ f) is constant at each d, t0 and material independently to h or Wc. Therefore in this method, vh cannot be controlled for forming at h and is more increased as larger deformation resistance of blanks for forming as the same h. The strain inclinations from the centre to the periphery of blanks formed are smaller in O than in 1/2H, and larger than those of the hydrostatical method in O, but smaller in 1/2H at the same h.抄録全体を表示PDF形式でダウンロード (1327K) -
ころがり変形による履歴損失に関する解析的検討渡部 紘一, 川口 格1977 年 43 巻 511 号 p. 843-848
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーTo account analytically for the mechanism of rolling friction between a steel ball and a steel plane, some basic assumptions on the hysteresis loss energy are made as follows : When the ball rolls forward a small distance, the hysteresis loss energy dissipated in a certain volume element is proportional to the product of the elastic strain energy of the element and its absolute increment attendant upon the rolling, where the proportional constant is determined only by the material of the rolling bodies. The proportionality between the pure rolling friction obtained in the experiment and the infinite integral of the above product of volume element, which is numerically computed, is investigated by using a number of different normal loads, ball diameters and materials. And the proportional relation for each material is realized, where the proportional constant depends upon the structure of the materials and is independent on the normal load and the ball diameter. Therefore it is confirmed that the above assumptions on the hysteresis loss energy is valid in the rolling friction.抄録全体を表示PDF形式でダウンロード (1171K) -
切りくずの油流し処理法湊 喜代士, 豊島 敏雄1977 年 43 巻 511 号 p. 849-854
発行日: 1977/07/05
公開日: 2010/01/20
ジャーナル フリーThe relations between the facility of being washed away of chips and the incline of a conduit or the flow rate of cutting fluid are investigated when chips of various types and sizes are washed away with cutting fluid through the conduit, and results are as follows :
(1) The facility of being washed away of a chip varies with the shape and curl type, and the ascending order of the facility is side curl type, conical curl type and up curl type in general, and cylindrical helical fragment-shaped chip (up curl type) are most easily washed away.
(2) The influences of the shape and size of a chip upon the facility of being washed away may be represented with one value of the projected area per unit weight of a chip in the stream direction, and a chip is washed away easier as the projected area becomes larger.抄録全体を表示PDF形式でダウンロード (1236K) -
二, 三の実験結果について松井 正己, 工藤 一郎1977 年 43 巻 511 号 p. 855-860
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーIn this paper, the effects of work speed, wheel depth of cut, grinding width and edge thickness of the cup wheel on face grinding forces (both tangential and normal forces) were investigated experimentally. The effects of work speed and edge thickness of the cup wheel on face ground surface roughness were investigated experimentally, too. On the other hand, using the experimental results of the distribution in depth for the position of grain cutting edges and the distribution of grain tip angles in the cup wheel surface layer, theoretical values of grinding forces and ground surface roughness in face grinding were calculated and compared with experimental values.抄録全体を表示PDF形式でダウンロード (806K) -
山本 巌1977 年 43 巻 511 号 p. 861-867
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーWhile pneumatic micrometer circuits are usually treated as a first order of dynamical system, the time constant represents the dynamic performance of the circuits and varies as a function of both the operating pressure and the supply pressure. A formula of the time constant is derived in such a form that can be applied to a wide range of pressures and is graphically represented using practical size of circuit elements. Relations between the time constant and the operating pressure of pneumatic micrometers are drawn with the supply pressure as a parameter. It shows that 1) in general, the relations of the time constant to the operating pressure are shown as such curves that have a maximum value in the middle part of the operating pressure, 2) the maximum value increases until the supply pressure approaches up to about 2. 5 kgf/cm2, but beyond the value it does not change so much, 3) the time constant of the vacuum type of pneumatic micrometer is larger than that of other types of pressure. These results are in good agreement with experiment. Moreover, the effects of the repulsion force between the sensing nozzle and its counter-face on the dynamic performance are discussed.抄録全体を表示PDF形式でダウンロード (1207K) -
放電加工に関する調査(使用状況)分科会1977 年 43 巻 511 号 p. 868-871
発行日: 1977/07/05
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (614K)
- |<
- <
- 1
- >
- >|